Privacy Policy

The Privacy Policy was updated on November 29, 2016.

RosyWorks, "we"/ "our"/ "us", is the developer and operator of Heart Rate Book, "the app".
We provide Privacy Policy to explain how we collect, use and store your personal health data, "your data" in the app.
You agree that we can collect and use data in accordance with Privacy Policy, by installing and using the app.

Collection And Use of Information

Your data that was obtained from HealthKit database will be only used in the app.
Your data will never be sent to our server.
Your data will not be shared, transferred or sold to anybody.
We will not utilize your data for advertisement or similar purposes.

We use Crashlytics service, operated by Twitter Inc., to analyze crashes within the app. The app will send crash information to the server of Crashlytics when the app crashes.
However, your data and any personal information that identifies an individual will not be sent.
For more detail about Crashlytics, please visit Crashlytics website


We will do the best to keep the app safe and understand the importance of your security, but we cannot guarantee them.


We reserve the right to change, modify, add or remove portions of this Privacy Policy from time to time and in our sole discretion, but we will alert you that changes have been made by indicating on this page the date it was last updated.


We do not warrant that the app and the information contained in the app are complete, correct, accurate, useful or suitable for users.
We shall not be liable whatsoever for any damages incurred as a result of its use.