Sleep Charts
Sleep Charts
Last Updated: August 11, 2026
This app is provided by Vasili Vrubleuski, operating as a sole proprietorship (Jednoosobowa działalność gospodarcza) registered in the Republic of Poland (NIP: 5242961154, Address: 03-185 Republic of Poland, Warsaw, Erazma z Zakroczymia 19, m 29). If you have any questions about this privacy policy, you can contact us at vrubleuski@gmail.com.
Sleep Charts currently reads sleep data through Health Connect to generate charts and related visualizations on your device.
Sleep Charts does not intentionally save your health records to local files, upload them to our servers, or sell or share them with third parties. Health data is processed in temporary device memory while the app is running and while Android manages the app process.
The use of information received from Health Connect will adhere to the Health Connect Permissions policy, including the Limited Use requirements.
If Sleep Charts later supports additional health-data providers, such as Samsung Health direct integration, this privacy policy will be updated before that support is released.
Sleep Charts stores only non-sensitive app settings on your device to preserve your preferences between app sessions.
Sleep Charts uses Firebase Crashlytics and Google Analytics to collect anonymous crash reports and basic usage data. This helps us identify bugs and improve the app's stability and performance.
These services collect technical information such as your device model, operating system version, and crash stack traces. They do not collect full memory dumps, and they do not collect your personal health data or sleep records.
Sleep Charts does not intentionally share your health records with third parties.
You can revoke Sleep Charts access to Health Connect data at any time in Health Connect or Android settings.
Because Sleep Charts does not intentionally store copies of your health records, there is no in-app archive of health data for you to delete from Sleep Charts itself. To delete the locally stored app preferences (such as your theme or filter settings), you can clear the app's data in your Android settings or uninstall the application.
The data displayed in this app is sourced from other applications via Health Connect, and we cannot guarantee its accuracy. It is your responsibility to verify the data's correctness.
The developer is not responsible for any harm to your health or any other damages that may arise from the use of this app. By using this app, you agree to accept it as is, even if it processes data incorrectly. If you have any doubts about the interpretation of the data, please consult a qualified professional.
This application and the information it provides are for general informational purposes only and do not constitute medical advice, diagnosis, or treatment.
Sleep Charts is not a medical device. The charts and data insights generated by this app are intended to help you track and understand your general sleep habits. They should not be used as a substitute for professional medical advice or to diagnose, treat, cure, or prevent any sleep disorder or medical condition (such as sleep apnea or insomnia).
Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or your health. Never disregard professional medical advice or delay in seeking it because of something you have seen in this app.
This app is not intended for or directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us so that we can take steps to remove that information.
We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page.
If you have any questions or suggestions about our Privacy Policy, do not hesitate to contact us at vrubleuski@gmail.com.