Privacy policy

Sudý/Lichý budík (Android, cz.eadg.budik) · effective 1 October 2026

Sudý/Lichý budík (“Odd/Even Alarm Clock”) is an alarm clock that runs entirely on your phone.

Data the app handles

It collects no personal data and sends none anywhere. It has no account, no ads, no analytics and no third-party crash reporting.
Alarms, days off and settings (times, labels, selected region, chosen sound) are stored on the device only. Save to file writes a backup to a place you choose; the app does not send it anywhere.
If Google backup is enabled, Android includes them in your device backup. That backup is managed by Google and is not accessible to the developer.
The in-app purchase is handled by Google Play. The app only learns whether it has been paid; it never sees payment details.

The app connects to these places only:

The public OpenHolidays API: public and school holidays, about once a week. The request contains only the country (Czechia or Slovakia) and a date range, nothing about you or your device.
Your school's calendar, only if you enter its link: downloaded about once a week from the address you entered (e.g. the school's Google Calendar); nothing else is sent.
Google Play, to make and verify the purchase.

As with any internet request, the operators see the requesting IP address.

Notifications, exact alarms, full-screen intent: so that the alarm rings on time and shows on the lock screen.
Do Not Disturb access (Android 14 and older, only if you grant it): lets an alarm through total silence for the length of the ring. The previous mode is restored afterwards.
Run at startup: reschedules alarms after a reboot.
Internet: downloads holidays and, if set, the school calendar (see above).

This site uses no cookies, no analytics, and no fonts or scripts loaded from elsewhere. The odd/even week is calculated in your browser.

The app is not directed at children under 13 and collects data about no one.

Any changes to this policy will be published on this page. Contact: budik@eadg.cz