This policy applies to the Guessaday app for Android (Google Play and F-Droid) and iOS (App Store), published by Moritz Firsching.

Guessaday does not collect, store elsewhere or transmit any personal data.

What stays on your device

The app keeps a few things in its own local storage so that it works the way you set it up:

  • your settings (date range, timer, display options, reminder times),
  • the results of the rounds you play (date shown, whether you answered correctly, time taken), which the app uses for its statistics screen.

This information never leaves your device. You can clear the statistics from within the app, and everything is deleted when you uninstall it.

No network, no accounts, no tracking

  • The app makes no network requests. It does not need an internet connection and does not ask for one.
  • There is no account, no sign-in, no advertising, no analytics and no third-party SDK that collects data.
  • The only outgoing links are the ones you tap yourself in the “About” dialog. They open in your browser, and the pages you reach are covered by their own privacy policies.

Practice reminders

If you turn on practice reminders, the app schedules notifications on your device at the times you choose. They are created locally; no server is involved. You can switch them off in the app or revoke the notification permission in your system settings at any time.

On Android the app also asks to be notified when the device restarts, solely to put the reminders back in place.

App stores

The store you install Guessaday from (Google Play or the App Store) may process data such as download counts or crash reports under its own privacy policy. Guessaday itself does not add any reporting.

Children

Since the app collects no data at all, this applies to users of every age.

Changes to this policy

If this policy ever changes, the new version will be published on this page.

Contact

Questions about this policy: Moritz Firsching, moritz.firsching@gmail.com.

Last updated: 7 November 2026