Constraint Clock — Privacy Policy

Last updated September 2026

Constraint Clock stores all data locally on your device. No accounts, no cloud sync, no analytics.

Data stored on device

Session history — constraint used, duration, reflections
Custom constraints and favorites
App settings and in-progress session recovery state

Data export

You can export all data as JSON from Settings at any time. Exported files stay under your control.

Notifications

Daily reminders are scheduled locally through the OS notification system. No notification content is sent to external servers.

Third parties

RevenueCat validates in-app purchases (the Pro lifetime unlock). It receives only what Apple or Google already pass along for receipt validation — no personal data from Constraint Clock itself. See the RevenueCat privacy policy.

Constraint Clock does not integrate analytics or advertising SDKs of any kind.

Contact

Questions about this policy or the app: open an issue on GitHub.