https://www.standarddiet.com/xchallenge-privacy-policy.html
XChallenge Privacy Policy
The XChallenge app does not collect the personal data of the person using it.
The app has a high score table where the user can enter their name. This name is only used when showing the high score table and is only stored on the device.
It is not stored on line or in the cloud. No attempt is made to link it with any accounts. You can enter whatever you like, it does not have to be a real name.