An app that locks the apps you doomscroll and sells the time back for reps.
The short version. There is no account, no analytics, no advertising and no third-party code in the app. Camera frames are analysed on your device and never recorded or sent anywhere. What does leave your phone goes through Apple: rep counts and badges to Game Center once you have said yes, a leaderboard row only if you join the iCloud board, and a copy of your history to your own iCloud.