Sunfold has no account, no server and no analytics. Everything you record lives on your device.
Your fasts, weight entries, notes and settings are saved on this device. If you have iPhone backups switched on, they are included in your own backup, which only you can open.
No account, no email address, no advertising identifiers, no analytics or tracking SDKs, no location. Nothing you record is sent anywhere, because Sunfold has no server to send it to.
Purchases are processed by Apple. To check whether Sunfold Pro is active, the app uses RevenueCat, which receives a randomly generated app user ID and your App Store receipt. It never receives your name, your email, or anything you record in Sunfold.
All reminders are scheduled locally by your iPhone. Sunfold has no push server, and notification content never leaves your device.
Sunfold does not read from or write to Apple Health.
Settings → Delete all data removes every fast, weight entry and note immediately. Deleting the app removes everything else.
Sunfold is not directed at children and is not intended for anyone under 18 without medical supervision.
If this policy changes, the updated version appears here and in the app itself.
Last updated: August 2026