5. Mobile application

Your ACT Head Impact Tracker application is part of system, where information flow from the head sensors to the cloud takes place. Use of mobile data on your mobile device with the application may occur at any time when ACT Head Impact Tracker head sensors are used. If you do not wish to be part of the system, turn Bluetooth® wireless connection off or turn off the mobile data in your mobile device.

You can access all your profiles and Profiles shared with your User Account like this:

1. Click on the white Profile bar you wish to see
2. Profile page opens with the last impact information to it.
3. You can see or add sensors to the profile by clicking on green bullet with +sign to it on ”Sensors” bar.
4. You can see Profile’s impact history by clicking green bullet with +sign on ”Impact History” and history opens below it and can be scrolled down to see older impacts.
5. You can view each event’s details by clicking on the impact you wish to take a closer look at in ”impact history” listing.
6. Impact view opens with its numerical information on the top and graphical illustrations available below.

Your mobile device is like a small computer and sometimes something just might get jammed, which also affects ACT Head Impact Tracker App functionality. Most typically mobile device’s Bluetooth® wireless communication is the source of trouble for the users, and it features so that sensor(s) cannot get the connection to App. You might want to try these things to solve the issue:

1. Take off the phone’s power save mode by switching the phone active (screen becomes lighted). Also check that ACT Head Impact Tracker App is open and on top of the open Apps.
2. Check that your phone has Bluetooth® wireless connection on and that you have given the App permission to use Location services.
   3. If you have smartphone running Android 12 or newer operating system, you also must give the App permission to use “Nearby devices”.
3. Ensure your mobile device is compatible with ACT Head Impact Tracker App by checking the list of brands and models tested in our FAQ (www.act-tracker.com) and any comments there. It could be you have to activate sensor scanning to connect sensors one by one.
   5. Switch Bluetooth® wireless connection off and back on to see if that would be enough to reconnect.
4. You can also try closing ACT Head Impact Tracker App and opening it again.
5. You might need to restart your phone to solve the ”jam” in it.

There is lots of information and data on the impacts and forces acting on a head measured in Web User Interface (access it via Browser Access):

1. There is lots of information on the impacts and forces acting on a head measured, calculated and available. To get the impact information in the Web User Interface:
   1. Click “Browser Access” on the bottom of www.act-tracker.com website.
   2. Type in your User Account credentials: UserID and password
   3. Click on the profile you wish to see anywhere on the profile box. (please note the boxes are not in dynamic order as in the App, i.e. the latest impacted will not be 1^st in the left top corner)
   4. Click on any event in the impact history to get graphics on Total and Linear Acceleration, and if you have ACT Head Impact Tracker head sensor Pro also angular velocity. You can also choose to look at the graphs in rad (radiance) or deg (degrees).
   5. If you want to add notes to the event, or mark it faulty (false positive event), you can do it here by typing the notes in the “Notes” box, or ticking the box next to “Flag as faulty impact”.
   6. The individual measuring points are featuring in the bottom of the event’s page.
   7. You can import the event data by using “Export Tool” which you can find on a pop-up window when you click on your account UserID on the top right hand corner. Import Profile’s impact history data doing the same in the profile page, or on the landing page.

1. Buy and insert CR2032 coin cell battery (not included in the sensor but in the USA).
2. Download ACT Head Impact Tracker smartphone mobile App on your smartphone. Please note: The App’s compatibility with all and every smartphone brand and model has not been tested and cannot be guaranteed. There are brands and models which are not compatible with the ACT Head Impact Tracker. Frequently updating list of brands and models tested can be found in FAQ (www.act-tracker.com). If your mobile device is not automatically connecting with the sensors (i.e. an event occurs, you are in Bluetooth® Wireless connection’s reach, but information is not appearing to the App) try with Active scanning. Depending on your mobile device, you might need to always use Active scanning to connect with the sensors. Active Scan works like this: 1.) Click “Menu” (3 bars on the left upper hand corner) > Click “Start active scan” > text turns to say “Stop active scan” = Active scanning is on until you switch it off. Stop Active scanning by clicking on text “Stop active scan”. 2.) When the text says “Start active scan” = Active scanning is off. 3.) If needed, always use active scanning when you want to connect to the sensors.
3. Create a User Account in the App. Your email will act as a User-ID. Make sure to store your password somewhere safe, it cannot be reset.
4. Create a Profile in your User Account to which you want to add the head sensor to. Click “Add profile” and follow the App’s instructions in creating the Profile. Please note: You cannot remove or change the Profile once created.
5. Give App permission to use Location, and “specific Location” if applicable. Give App permission to use Location, and “specific Location” if needed. You also must give App permission to use “Nearby devices” when applicable.
   6. Bluetooth(r)wireless connection must be enabled, on and active in your smartphone with the App always when using it with the sensor(s) and want to get the data in near-real-time.
6. Ensure mobile data and roaming (if needed) are enabled, on and active in your mobile device for the App and always when using it with the head sensor, or that you are connected to Wi-Fi.
7. Remove the head sensor from its package. Open the hatch. Insert the battery to the sensor via hatch on the short side (see illustrated instructions in the end of this document).
   9. Locate the head sensor’s Serial number also acting as Registration code, which is on the product label underneath the battery hatch. Open the hatch and you will find the white sticker on the lid. Registration code is a 6-digit code on the product label.
8. Close the hatch by pressing all sides firmly together to seal the locks. Make sure the sides are seamlessly connected with each other before usage. Please note: Inserting the battery may turn the sensor on, but some components might not turn on. Before usage, switch the sensor off and back on.
9. Turn the head sensor on by pressing the on/off-button once slowly and firmly. The sensor is on when the small red LED light next to the button starts to blink in slow frequency. If the light blinks in high frequency (in fast pace), the battery is almost empty. Change the battery or ACT Head Impact Tracker might not work as intended. If the light does not come on at all or the light comes on, but it is not blinking, try with new battery. If the light still is not coming on at all, or the light comes on, but it is not blinking, the head sensor is not working as it is supposed to and should be replaced.
10. When the sensor is on, choose the Profile you want to add the sensor to and click on it. Click then green button next to “Sensors”, and then the “Add Sensor” button. The App has found the sensor when it says: “Found 1 sensor”. Click “Continue”. The App is connected to the sensor when it shows “Connected to 1/1 sensors”.  Add the Registration code to the line under the text. Click “Continue”. If the App cannot find any sensor, switch the sensor off and back on, and try again. If the App finds more than one sensor, switch off all the other sensors than the one you want to register and try again. Please note: You can register the head sensor only once, and to one Profile only. It is not possible to remove or change the head sensor to another Profile once registered.
11. Follow Apps instructions to complete sensor registration. Please note: you cannot change sensor’s information once registered.
12. When data filling is completed, the App will confirm “Registration is successful”. This means your ACT Head Impact Tracker is ready for action.
13. In the end of each session of use, make sure to switch off the sensor by pressing on/off-button slowly and firmly twice. Wait for one long LED light blink to indicate the sensor is switched off. Doing this will prevent impacts from handling and transportation to be recorded to your impact history. It will also save energy and prolong your battery lifetime.

Last updated: 2nd of April 2024

MOBILE DEVICES’ FUNCTIONALITY WITH ACT HEAD IMPACT TRACKER

Currently ACT Head Impact Tracker mobile App is only available for Android 10 and newer Android operating systems.

Test if your mobile device works with passive or active scanning.

1. Give ACT App permissions to use “Location”, “Specific location” and “Nearby devices” when applicable.

2. Turn on Bluetooth® wireless connection and activate connection to Wi-Fi or mobile data.

3. Turn on the head sensor. Create User Account and Profile in it. Add Sensor to the Profile.

4. If you cannot add sensor to the Profile (sensor cannot connect to the App), you must always use Active scanning to connect to the sensors. You can do this by tapping on “Menu” (3 bars on top of each other in the left upper hand corner of the screen) > Click “Start active scanning” > try adding sensor again to the profile. Active scan is on until you stop it by clicking on “Stop active scanning” .

5. In some rare occasions, we found that adding sensor to the profile was possible in passive scanning mode, but the sensors didn’t connect without active scanning after this. So ensure your mobile device’s scanning mode to use with creating another test impact after you have successfully added sensor to he profile. If also now you get the event information to the App without using Active  scanning, your mobile device works on passive scanning. If your mobile device is not connecting to the sensors automatically, you must use Active scanning always when you want to connect to the sensors, and receive information from the sensors.

PASSIVE SCANNING

Passive scanning means that App is automatically connecting to the ACT Head Impact Trackers when the sensors are trying to send information. Unfortunately the mobile device brands and models are increasingly banning the passive scanning use and currently we have found that only majority of Samsung mobile devices work with passive scanning.

Occasional problems with establishing and maintaining connection between the head sensors and mobile devices (no notification to the App regarding) were recorded:

– Samsung phones: a.) in some models Bluetooth® wireless connection was slow, even disconnected, if the mobile phone’s screen is switched off (= not lighted). The connection should be re-established and information from the sensors delivered when the screen is switched back on (=lighted) if the sensor(s) are in the reach of Bluetooth® wireless technology. b.) In all models pop-up window with list of devices for paring appears when Bluetooth® wireless technology is switched on. When this happens, just click “Continue” to close the window. No paring is needed, nor appearing nor choosing it on the list. Also in few occasions the phone just disconnected Bluetooth® wireless connection. If the listening sensors just stops, turn Bluetooth® wireless connection off and back on, this fixed the problem.

ACTIVE SCANNING

When Passive scanning is not working, you need to use active scanning to allow sensors to connect to the mobile device and ACT App.  Active Scan works like this: 

1. Click “Menu” (3 bars on the left upper hand corner) > Click “Start active scan” > Text turns to “Stop active scan” = Active scanning is on until you switch it off by clicking “Stop active scan”. 

2. When the text is “Start active scan” = Active scanning is not on. 

3. If needed, always use active scanning when you want to connect to the sensors.

We have not yet tested any mobile device running Android 10 or newer which does not work with Active scanning. But we have not tested all the brands and models available, nor all of their operating system and update versions, so we cannot guarantee that ACT Head Impact Tracker mobile App will work with every mobile phone brand and model.

iOS App is not yet available. The plan for iOS App launch is in the summer of 2024.

When an event with impact or forces acting on a head over 10g threshold occurs, the head sensor is trying to send information about it via Bluetooth® wireless connection to the mobile smartphone with ACT Head Impact Tracker App. If the mobile device and App are not at Bluetooth® wireless connection reach, the head sensor saves the impact data in it. The saved impact information can be transmitted when the sensor is at Bluetooth® wireless connection reach and multiple impact information can be transferred on one go.
Note: App also needs to have permission to use “Location” and when applicable (Android 12 and newer Android operating systems) “Nearby Devices”, or App cannot receive information from the sensors. Also note that if mobile data or Wi-Fi connection is not on, active and available for the smartphone with the App, the data cannot be transferred, and we suggest using Tracker mode in sensors and downloading the data from sensors when mobile data or Wi-Fi connection is available.

IMPORTANT NOTICE: Your ACT Head Impact Tracker application is part of system, where information flow from the head sensors to the cloud takes place. Use of mobile data on your mobile device with the application may occur at any time when ACT Head Impact Tracker head sensors are used. If you do not wish to be part of the system, turn Bluetooth off, or turn off the mobile data in your mobile device.

To use ACT Head Impact Tracker you need to have User Account. This is how your can create one.

1. Go to Google Play store and download ACT Head Impact Tracker Application to your compatible Android smartphone.
2. Choose “Register” on the opening page > Click “continue”
3. Type in your email address to act as your UserID. Ensure there is no autofillings/autocorrections which should not be there to your email address. Please notice, you can not change your UserID once created. > Click “continue”
4. Create a password with minimum 9 characters to it containing small and capital letters and numbers to it. > Click “continue”
5. Retype your password > Click “continue”.
6. Select the country you live in > Click “continue”
7. Read carefully our “Privacy policy “ > > scroll to the end of the document > Add a tic to the box > Click “ok”
8. Read carefully our “Terms of Service” > scroll to the end of the document > Add a tic to the box > Click “ok”

You have created User Account and can add Profile(s) to it.

To add ACT Head Impact Tracker head sensor to your User Account, you have to create a Profile. Please notice: you cannot change the information on the Profile, nor remove Profile once created. Do it like this:

1. Click ”Add profile” on App’s landing page.
2. Give name to your Profile. For data privacy considerations, we recommend not to use real or full names on Profiles. > Click “continue”
3. Give a birthday to Profile. For data security reasons we suggest only to use actual birth month and year, which our company needs to fulfill our legal obligations > Click “finish”.
4. Choose your gender > Click “finish”

You have created Profile to User Account and can add sensor(s) to it.

To add and use ACT Head Impact Tracker head sensor, you have to add it to a Profile on your User Account. Note: you cannot change Sensor information, nor move or remove Sensor once added to Profile. Add head sensor to a Profile like this:

1. Click on Profile you wish add sensor to on App’s landing page.
2. Click on green bullet with +-sign on it on “Sensors” block > Click “Add sensor” so that ”Activate the sensor page opens.
3. Insert battery to the sensor, switch it off and back on > Click ”Continue” > Wait for ”Found 1 sensors” text to appear. > Click ”Continue” > Wait for ”Connected to 1/1 sensors” appear > Type the 6-number serial number also acting as registration code to the line > Click ”Continue” If the App can not find any sensor, switch the sensor off and back on, and try again. If the App finds more than one sensors, switch off all the other sensors than the one you want to register and try again.
4. Choose the sport / discipline the sensor is primarily used for > Click “Continue”
5. Name your sensor or just leave the line blank > click “Finish”
6. Wait for “Configuring the sensor” to be completed before switching off the sensor or App.
7. App confirms “Sensor registered successfully” when registration is completed. Then you can switch off the sensor and can see it in “Sensors” listing on the Profile.

You are now all set and good to go. Sport safely!

Due to differences in smartphone brands and models, their operating systems and updates to them, it is recommended to have ACT Head Impact Tracker smartphone mobile App, logged in, open and screen switched on always when using it with the head sensor(s) and you wish to get the impact information near-real-time.

Unsent impact information will be saved to the sensor and you can retrieve it once the Bluetooth® wireless connection, is active and available, you have given the App permission to use location services and if you have Android 12 or newer operating system given permission to “Nearby devices”, and the mobile device is connected to Wi-Fi our mobile data.

The App is currently available only in Google Play store and smart phones running Android 9 operating system or newer. The functionality with all smartphone brands and models has not been tested and cannot be granted. There are brands and models which are not working as intended with ACT Head Impact Tracker. Please ensure to check the list of tested brands and models ”What smartphone devices are compatible with ACT Head Impact Tracker?” before purchasing ACT Head Impact Tracker head sensor or accessories.

Changes and updates in mobile phone brands, models, operating systems and components, as well as changes and updates made to features, functionalities and user preferences may impact on ACT Head Impact Tracker system and functionality. We are working hard to keep our App updated and functional with as many devices as possible, please help us to do so and tell us on the problems you encounter by emailing us at

Sorry, but you can’t. Not yet. The App is not available for iPhones or iOS yet.

Currently, yes.

Unfortunately the phone operating systems are frequently updated and sometimes those updates might have dramatic impacts on the applications. All the brands have their own version of Android operating system, even if they are called the same number, every brand has their own version of that number, so to speak.
We are doing our best to keep up with the development and changes made, but it is essential to understand that sometimes we only learn about the affects once the release is out. And sometimes the changes are affecting too much and ACT Head Impact Tracker system will become dysfunctional. Hence it is not impossible that one day a certain model with certain operating system will become unfit with ACT Head Impact Tracker system, even if it used to be fit.
We are working hard to keep all the brands and operating systems on board, but it may be we will not always succeed, or that fixing issues might take longer time.
If you face issues after operating system update, or ACT Head Impact Tracker App update for that matter, we recommend to do the following:
– Restart the phone after the operating system update.
– Remove the old ACT Head Impact Tracker App before installing the new one (sometimes “Updating” is not complete and the App becomes something in-between the old and new and will not work.
– Restart the phone after installing ACT Head Impact Tracker App.
Always also good to visit the Application management (found in Settings) to remove all the unnecessary restrictions and such he update may have introduced. If the battery usage is restricted for example, it may interfere with the App functionality.
Please help us to get better by informing us on issues and changes relating to mobile device updates

We recommend to always remove the old App and only then install the new App. We do not recommend to use “Update” as sometimes the updating is not complete and the App becomes something in-between the old and new and will not work. When the new App-version is installed, restart or switch off and back on the phone. ACT Head Impact Tracker is using phone’s Bluetooth® wireless communication and sometimes this action is needed for the App to work as intended.

In some smartphone brands and models the 1^st letter is automatically upper case and a space may be added automatically after the period in your email address, check them. Also other autocorrection issues might occur. This is the likely reason for an email address being rejected by the system. Check that small letters in your email address are staying small letters and if space after period is automatically added, remove it.

You cannot change your user-ID once created. If your email changes and you do not have access to your old email anymore (the one which is your User-ID), you have to create a new User Account and add new the head sensor to it.

Before you change your email and can’t use your User-ID anymore, remember to:

1. Take out your data via Web User Interface in Browser Access, so that no impact history information is lost due to User Account change.
2. Inform us at about your User Account closure and ask us to delete your old account.

You can’t. This feature is not available at this time. Make sure to store your password carefully.

Contact us at  to see, if we can help you. Please note that we make no promises, data security is a priority in our actions. It is crucial that you store the User-ID and password carefully in a place which you can access without your mobile device in case it is lost or broken. 

ACT Head Impact Tracker products and services are not functional without location services, Bluetooth® wireless connection, mobile data and data roaming (if needed), or Wi-Fi. If you have smartphone running Android 12 or newer operating system, you also must give the App permission to use “Nearby devices”. All mentioned must be enabled and active when using the head sensor if you wish to get the data near-real-time.

Hence always when using ACT Head Impact Tracker ensure to:

1. Give permission for App to use location services on your mobile device and always when using App with the head sensor. Your mobile phone’s Bluetooth® wireless connection will not work without it, and ACT Head Impact Tracker will not work without Bluetooth® wireless connection.
2. Enable Bluetooth® wireless connection always when using App with the head sensor, or ACT Head Impact Tracker will not work.
   3. If you have smartphone running Android 12 or newer operating system, you also must give App permission to use “Nearby devices”.
3. Enable Mobile Data and roaming (if needed) for App in your mobile device. Switch on mobile data and roaming always when using App with the head sensor. Alternatively ensure that you are connected to Wi-Fi (or LAN) for the whole time you are using App with the head sensor, or ACT Head Impact Tracker will not work as intended.

You need to create a Profile to add and use the head sensor. One User Account can have multiple Profiles and head sensors added to them.

Yes. User Account can have multiple Profiles on it.

Yes. User Accounts can have multiple head sensors added to Profiles.

You cannot delete the Profile once it is done. Also note that you cannot change the Profile data like name, birth date or gender.

You can add and remove your Profile Shared Contacts by going on a Profile you wish to manage so that it opens on the screen > tap three small bullets on the upper right-hand corner of the screen > “Manage Profile Shares” appears, tap that. Tap on the green bullet with +-sign on it in the next screen opening to add another ACT Head Impact Tracker User Account as your Profile’s “Shared Contact”. You can remove a Shared Contact by swiping left and deleting “Shared Contact” from the list.
Please note:
1. Shared Contacts must have an User Account in ACT Head Impact Tracker and the App. All notifications are sent as in-App notifications and impact information can be received and read in the ACT Head Impact Tracker App only.
2. The emails nor the User Accounts you add to share your data with are not confirmed by the system. Ensure from your Shared Contacts that they have received your share and accepted it.
The Shared Contact will receive an invitation to your share in their ACT Head Impact Tracker App. They can either reject or approve your invitation. If they approve your invitation your Profile and the data it has and receives will emerge to their landing page. Shared Profiles carry small symbol with three bullets joined by two lines on the right hand side of the profile. The Shared profile can not be Shared  forward.
Do also note that All Profile’s “Shared Contacts” will receive all impact information on the Profile’s all sensors. Do not add “Shared Contact(s)” to the Profile if you do not want to share. You can have two or more Profiles and sensors if you want to share some impact information and keep other impact information to yourself/share it with different group of “Shared contacts”.

Yes.If you wish to only share some data, it is recommended to have two different profiles and sensors, one for the shared data and the other one for the data you do not wish to share.

1. IMPACT INFORMATION

Impact information is displayed in App with numerical values and when applicable as a graph. Each impact also has time stamp on it, which tells when the impact has occurred and impact’s index number. Read more about the impacts in ”What is the data and what does it tell you?”, “Why you should measure” and “Some reading we suggest”.

2. IMPACT HISTORY

Profile’s impact history is a record of events on a head, combining events from all the sensors added on a profile. It can be accessed in the App by tapping on a chosen profile and green button next to text “Impact history” on the profile page. The last impact recorded is displayed on the top of list with information on which sensor has recorded it, when it has occurred, and an index number of the impact.

3. BROWSER ACCESS / Web User Interface

Through Browser Access users can access to Web User Interface and there user’s information via internet browser. All collected information and calculated data on the events is available in Web User Interface (which is much more that displayed in App), you can mark events faulty there, add notes to the events, and import all user data to a computer where it can be further processed in applicable spreadsheets and database management systems. Access to Browser Access by clicking “Browser Access” link in the bottom of www.act-tracker.com website.

COMING SOON: BROWSERS ACCESS / TEAM DASHBOARD
Team Dashboard is the statistics and light analytics tool for coaches, trainers, teams and clubs. You can build teams there from all your profiles and those shared with you to get team’s total data and statistics, as well as that of individual athletes on critical factors like number of events and magnitude of events. Follow trends, track effectiveness of measures taken and compare the data to identify the risks and hazards.
More information will follow and be added in Help section under “Team Dashboard”.

IMPORTANT NOTICE: This is the status of features and functionalities and their availability for the Users as of today. We reserve the right to these, any and all new service features and functionalities, their availability and accessibility in upcoming App updates and versions.

IMPORTANT NOTICE: Your ACT Head Impact Tracker application is part of system, where information flow from the head sensors to the cloud takes place. Use of mobile data on your mobile device with the application may occur at any time when ACT Head Impact Tracker head sensors are used. If you do not wish to be part of the system, turn Bluetooth off, or turn off the mobile data in your mobile device.

ACT Head Impact Tracker smartphone mobile App is free to download, and the use of the very basic service feature and functionality is free of charge.
In the future the App will contain in-App purchases, please note that many of the service features and functionalities will be available by subscription only. More information about the service features and functionalities, and their availability as they will be introduced in our website www.act-tracker.com

Your mobile phone’s Bluetooth® wireless connection is essential for ACT Head Impact Tracker to work near-real-time. The head sensor sends all the data via Bluetooth® wireless connection and Bluetooth® wireless connection is needed on the mobile device to receive that information from the head sensor. Bluetooth® wireless connection needs location services on your mobile phone to function. That’s why ACT Head Impact Tracker must use your location.

Also some future features and functionalities may need to use your location for other purposes, an example of this is soon-to-be-launched Fall Alert (you might know this as “crash sensor” functionality) which will be made available for subscription as an in-App purchase.

Your ACT Head Impact Tracker application is part of system, where information flow from the head sensors to the cloud takes place. We aim to ensure that information is moving as swiftly as possible. This is why use of mobile data on your mobile device with the application may occur at any time when ACT Head Impact Tracker head sensors are used within the data transfer’s reach. If you do not wish to be part of the system, turn Bluetooth off on your mobile device, or turn off the mobile data.

Your data is safe in the cloud and you can access it via any mobile phone, tablet computer and computer with browser in it via Web User Interface in Browser Access.
ACT Head Impact Tracker App however will not function if your phone with it has broken.

If you are outside the mobile network reach, have no coverage or connection to the mobile data or Wi-Fi, ACT Head Impact Tracker will not function as intended. The head sensor can save unsent events to it, which can be downloaded by the App later, but the near-real-time delivery of the impact information in the App is disabled when there is no Wi-Fi or mobile data connection available.

There is lots of information on the impacts and forces acting on a head measured, calculated and available. To get the impact information in the App:

1. Choose the Profile you wish to see, click on it.
2. The Profile view opens with latest impact on the top. Open ”Impact History” by clicking on green button with +sign on it. Choose the Impact you wish to look closer at, click on it.
3. Impact view opens with graphs on Total recorded g-force during the measurement period, Axial g-forces during the measurement period, and in ACT Head Impact Tracker Pro sensor also Rotation speed measured during measurement period.

With Profile Share you can share your impact information to other ACT Head Impact Tracker User Accounts in almost real time. This is how to add a share and how to remove a share:

1. To share Profile, choose Profile you want to share on the App’s landing page, click on it.
2. Profile view of the Profile you wish to share opens. Click three small dots on top of each other on the top right corner.
3. White block with text ”Manage profile shares” opens on the top right corner, click on it.
4. “Manage shares” page opens. To add a Profile Share, click green bullet with +sign to it on the bottom right corner.
5. “Share with email” page opens. Type on the line User Account’s UserID (=email) you want to make a Profile Share to. Note: Profile can only be shared with another ACT Head Impact Tracker User Account. Validity of User Account’s email is not done by the system, so ensure from the other User Account that they have received your Profile Share invitation and accepted it.
6. Your Profile Shares will become visible as white blocks on “Manage shares” page.
7. To remove Profile Share wipe left the on the “Manage Share” block you wish to remove.
8. “Remove Shared Access” window appears, Click “Continue” on it.
9. Click arrow on the top left corner to exit ”Manage Shares” page. Next time you enter there, the removed share has disappeared.

You can do and find all this in App’s ”Menu”, which can be accessed by clicking the 3 bars on top of each other on the top left corner of the App’s landing page.

Scan sensors:
In some Android phone brands and models it is not possible to use passive scanning to connect with the sensors, which is the default functionality in ACT Head Impact Tracker App. To receive information from the sensors with these phone brands and models you can use active scanning. Depending on your mobile device, you might need to use Active scanning to connect to the sensors.

If your mobile device is not automatically connecting with the sensors (i.e. an event occurs, you are in Bluetooth® Wireless connection’s reach, but information is not appearing to the App) try with Active scanning. Depending on your mobile device, you might need to always use Active scanning to connect with the sensors.
Active Scan works like this:
1.) Click “Menu” (3 bars on the left upper hand corner) > Click “Start active scan” > text turns to say “Stop active scan” = Active scanning is on until you switch it off. Stop Active scanning by clicking on text “Stop active scan”.
2.) When the text says “Start active scan” = Active scanning is off.
3.) If needed, always use active scanning when you want to connect to the sensors

Please note that one scan is only receiving one event’s data from one sensor, so you might have to activate the scanning multiple times to receive multiple events data from one sensor, or get the data from more sensors. This is why we do not recommend to use active scanning if there is multiple events or multiple sensors to connect to.

In case of an Incident:
It is a tool for you in case an incident happens on the pitch and you have no medical professionals nor other sideline assessment tools available. It may help you to approach the situation in a calm and structured manner.

Terms of Use:
Visit Terms of Use here.

Privacy Policy
Visit Privacy Policy here.

About:
Contains information about the App, trademarks and copyrights.

Log out:
You can log out from the App by clicking Logout.

To view information of specific Profile

1. Click on the white Profile bar you wish to see
2. Profile page opens with the last impact information to it.
3. You can see or add sensors to the profile by clicking on green bullet with +sign to it on ”Sensors” bar.
4. You can see Profile’s impact history by clicking green bullet with +sign on ”Impact History” and history opens below it and can be scrolled down to see older impacts.
5. You can view each impact’s details by clicking on the impact you wish to take a closer look at in ”impact history” listing.
6. Impact view opens with its numerical information on the top and graphical illustrations available below.

1. Download the ACT Head Impact Tracker smartphone mobile App from Google Play. It is available for Android 10 or newer Android operating systems only. Note: App’s compatibility with all and every smartphone brand and model has not been tested and cannot be guaranteed. Updated list of brands and models tested can be found in ”Help”-page in www.act-tracker.com.
2. Tap on “Register” button on the App’s front page. Add your email which will act as your User-ID.
   Note: Your user-ID must be your email address. You cannot change your user-ID once created.
3. Add a password. It has to have minimum 9 characters, contain small and capital letters, numbers and special characters. Use the eye-icon to check you wrote what you meant to. The App asks you to confirm the password by retyping it. The password must be exactly the same in both occasions to be registered. Tap “Continue”. Note: Save your password carefully! You can not change your password once created.
4. Select the country you are in. Tap “Continue”.
5. Read carefully our Privacy Policy, scroll down to the bottom, tic the box “I accept the terms mentioned above” by tapping the empty box before the text so that it becomes green and a tic appears to it. Tap “Continue”.
6. Read carefully our Terms of Use, scroll down to the bottom, tic the box “I accept the terms mentioned above” by tapping the empty box before the text so that it becomes green and a tic appears to it. Tap “Continue”.
7. Background appears with word “Registered” on it as soon as you have successfully registered your User account. A Login page appears automatically.
8. You can login with your User-ID and Password. Tap “Login”. Type your User-ID and password. Tap “Continue”.
9. Create a Profile in your User Account to which you want to add the head sensor to. Tap “Add Profile”. Enter Profile name. For the personal data security reasons, we recommend not to use your own and/or full name. We ask you to name the Profile so that it is easier for you and your Shared Contacts to identify who is behind the Profile. We do not use your Profile name for any purpose. Then enter your “Birth date”. We ask this for statistical and research purposes, and to fulfill our legal obligations. Persons younger than 16 years must not give us any personal information. Choose your “Gender”. We ask this information for the statistical and research purposes. The Profile is ready when it appears as white block on your App’s landing page. The Profile’s last recorded impact data will be shown on the landing page block along with your Profile name.
   Note: You cannot remove or change the Profile once created.
10. Ensure location services and Bluetooth® wireless connection are enabled, on and active in your smartphone for the App and always when using it with the head sensor(s).
11. If you have smartphone running Android 12 or newer operating system, you also must give the App permission to use “Nearby devices”.
12. Ensure mobile data and roaming (if needed) are enabled, on and active in your mobile device for the App and always when using it with the head sensor, or that you are connected to Wi-Fi. If you do not have mobile data or Wi-Fi at your disposal, please use the sensors in Tracker mode, this will decrease their power consumption and batteries will last longer. Do notice, when sensors are on Tracker mode, real time delivery of sensor measurements is not working, but you have to download the impacts from the sensor to the App after the session when mobile device can be connected to mobile data or Wi-Fi.
13. Remove the head sensor from its package. Open the hatch. Add the coin cell battery by carefully sliding it underneath the silver-colored holder bridge as indicated by the arrow on the bridge + side is facing you and away from the electronics.
14. Locate the head sensor’s serial number also acting as Registration code, which is on the product label underneath the battery hatch. Open the hatch and you can see the white sticker on the lid. Registration code is a 6-digit code on the product label.
15. Close the hatch by pressing all the sides firmly together to seal the locks on them. Check that the sides are seamlessly connected with each other before the use. Please note: Inserting the battery may turn the sensor on, but some components might not turn on. Before use, switch the sensor off and back on.
16. Turn the head sensor on by pressing the on/off-button once slowly and firmly. The sensor is on when the small red led light next to the button starts to blink in slow frequency. If the light blinks in high frequency (in fast pace), the battery is almost empty. Change the battery or ACT Head Impact Tracker might not work as intended. If the light does not come on at all, the light comes on but it is not blinking, or the light is blinking in an odd frequency try with new battery. If the light still is not coming on at all, or the light comes on but it is not blinking, or the light is still blinking in odd frequency the head sensor is not working as it is supposed to and should be replaced.
17. When the sensor is on, choose the Profile you want to add the sensor to, click on it. Click then green button next to “Sensors”, and then “Add Sensor” button. The App has found the sensor when it says: “Found 1 sensor” Click “Continue”. The App is connected to the sensor when it shows “Connected to 1/1 sensors”. Add Registration code to the line under the text. Click “Continue”. If the App can not find any sensor, switch the sensor off and back on, and try again. If the App finds more than one sensors, switch off all the other sensors than the one you want to register and try again. Note: You can register the head sensor only once, and to one Profile only. It is not possible to remove or change the head sensor to another Profile once registered.
18. After the code is correctly typed, the App will confirm “Registration is successful”. This means your ACT Head Impact Tracker is ready for action.

To optimize the data delivery time, keep the mobile phones with Apps listening to the sensors screens lighted (i.e. not on a power save mode or screen black), App opened and on the top of the open Apps. Some phone models (like Samsung) do not always work as intended and deliver the sensor data real time when they are on power save mode (screen shut off). If it is not possible to have all the phones screen lighted, try to have at least one. You can adjust the automatic screen shut time from the mobile device’s Settings.

A new version of ACT Head Impact Tracker App has been launched in September 2023 in Google Play store. Please visit Play store to check if your App has been automatically updated, or if you need to do it manually. Always have the latest App release on your mobile device to ensure the system works and intended.
If you have problems with the App after the update, please remove the App from your phone and install the new App. After you have installed (any) App using Bluetooth® wireless connection, it is advised to switch off your mobile phone and switch it back on.

What has changed in new App:

1. If your smartphone with the App runs Android 12 or newer operating system, you must give new ACT App permission to us “Nearby devices”, or it will not work with the head sensors.You can give permission in Settings > Applications > ACT > Permissions > give permission to use “Nearby devices”(please note, the path may vary between the phone brands and models). If your phone does not have “Nearby Devices” functionality, the permission is not needed.
2. One-at-a-time head sensor active scan beta version for Android phone brands and models which previously did not work with ACT App (“scan sensors” in App’s menu).
3. Time stamp fix
4. Battery icon fix
5. New and improved graphics
6. Rotational movement measurement
   NOTE: rotational movement measurement is only available in ACT Head Impact Tracker head sensor Pro
7. Miscellaneous bug fixes, updates and improvements.
   If you have any questions or comments, please contact us.

Thank you for being ACT Head Impact Tracker user, and building brain safer and healthier sports of the future!