Last updated: April 2026
1.1 This Privacy Policy explains how information is handled when you use the BurnKey mobile application (“BurnKey”, “we”, “our”, or “us”).
1.2 BurnKey is designed to help users understand their activity and energy expenditure using health data available on their device.
1.3 By using BurnKey, you agree to the practices described in this Privacy Policy.
2.1 With your permission, BurnKey may access certain health and activity data from Apple Health (HealthKit).
2.2 This may include:
2.2.1 Active Energy Burned
2.2.2 Apple Exercise Time
2.2.3 Walking or Running Distance
2.3 This data is used solely to provide BurnKey’s core functionality.
2.4 BurnKey only reads the health data necessary to provide these features and does not write data back to Apple Health.
2.5 Health data accessed through Apple Health remains stored on your device and is not transmitted to our servers.
2.6 BurnKey does not sell, share, or use HealthKit data for advertising, marketing, or data mining purposes.
3.1 BurnKey is designed to collect minimal information.
3.2 We may collect limited non-personal technical information.
3.3 This may include:
3.3.1 App version
3.3.2 Device type
3.3.3 Operating system version
3.3.4 Crash reports or diagnostic information
3.4 This information does not identify you personally.
4.1 Information accessed by BurnKey is used only to provide and improve the app’s functionality.
4.2 This may include:
4.2.1 Displaying activity insights within the app
4.2.2 Calculating burn rate and activity metrics
4.2.3 Maintaining app performance and stability
4.2.4 Diagnosing technical issues
4.3 BurnKey does not use personal data for advertising purposes.
5.1 BurnKey primarily processes data locally on your device.
5.2 The app does not require user accounts.
5.3 BurnKey does not store personal health data on external servers.
6.1 BurnKey does not sell, rent, or share personal information with third parties.
6.2 HealthKit data is used only for the functionality of BurnKey.
6.3 HealthKit data is not shared outside the app.
6.4 HealthKit data is not used for advertising, marketing, or data mining purposes.
7.1 BurnKey is not intended for children under the age of 13.
7.2 We do not knowingly collect personal information from children.
8.1 We may update this Privacy Policy from time to time.
8.2 Updates will be posted on this page with a revised date.
8.3 Continued use of the app indicates acceptance of the updated Privacy Policy.
9.1 If you have questions about this Privacy Policy, please contact:
burnkey.app@gmail.com