Privacy Policy

Thumbstone does not collect any data.

Everything stays on your iPhone: the apps you choose to lock, your usage statistics, your streak, and your birthday if you choose to add one. Nothing is sent to us or to anyone else. There are no accounts, no analytics, no ads and no tracking.

Thumbstone uses Apple's Screen Time framework to lock apps and measure the time spent in them. Apple does not share which apps you use with us, and the app only works with them on your device.

If you delete Thumbstone, all of its data is deleted with it.

Questions? Email support@thumbstone.app.

Last updated: October 2026