reReminder

reReminder

Open-source recurring reminders, many timers, own schedules, no tracking.

ProfessorQuantumUniverse Alarm Clock

Screenshots

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Description

reReminder keeps you in the loop. Set up as many recurring reminders as you need — a nudge to correct your posture, a break every hour, water, medication, a Pomodoro timer, and let each one run on its own schedule.

Several reminders, side by side
Run "Take a walk" every 50 minutes and "Sit or stand" every 20 minutes at the same time. Every reminder has its own interval, name, message and color, and counts down independently, changing one never disturbs the others. One master switch pauses everything and shows you which reminder is up next.

Reminders that fit your day
Limit a reminder to certain weekdays and to a time window, for example Monday to Friday between 08:00 and 17:00. Windows may cross midnight for night shifts. Outside its window a reminder stays quiet and tells you when it starts again. Schedules are optional, a new reminder simply runs at any time.

Notification text that writes itself
Drop values into your message, and they are filled at the moment the reminder fires: the current time, the date, the weekday, the reminder's name, its interval, or when the next one is due. A live preview shows the result while you type.

Made to actually fire
reReminder uses exact alarms that survive Doze, reboots, app updates and timezone changes, and it arms the next alarm before it even shows the current one, so the loop cannot break. A reliability check in the settings tells you whether the system is holding your reminders back, and takes you straight to the setting that fixes it.

Features:
  • Unlimited reminders: each with its own interval, from one minute to many hours.
  • Schedules: pick weekdays and a daily time window per reminder.
  • Dynamic text: insert time, date, weekday, name, interval or next due time.
  • Text-to-Speech: have your reminder read aloud, in your device language.
  • Personalized alerts: choose a notification sound or vibration pattern, and mute either one per reminder.
  • Master switch: pause everything at once without losing your setup.
  • Material 3 design: dynamic colors on Android 12+, full dark mode.
  • English and German, with per-app language support.
Private by design: no ads, no tracking, no accounts, no network access. Everything stays on your device. reReminder is free and open source.

🇪🇺 Made with passion in Europe.

What’s new (4.0.1)

reReminder 4.0.1 - hotfix

- Time windows respect the interval (#15): a window no longer restarts the reminder at its opening. The interval alone decides when the next event is; the window only decides whether it may go off.
- No more early alerts ahead of a window opening or at the end of a window.
- Tip: to line events up with a window, set the start to its opening.
- Alarms that cannot cover the screen fall back to a notification with sound.

Versions

Version Date Size Requires Android Download
4.0.1 current
594399f79e876f13…
2026-10-15 2.8 MB API 26
4.0
dd74c936e847978d…
2026-10-14 2.8 MB API 26
3.1.1
8e315c7724e3390c…
2026-09-25 2.7 MB API 26

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • VibrationControl the vibration alert.
  • Prevent sleepingKeep the device from going to sleep.
  • Run at startupStart automatically after the device is switched on.
  • Exact alarmsTrigger actions at a precise time.
  • USE_EXACT_ALARM
  • NotificationsShow notifications.
  • REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
  • USE_FULL_SCREEN_INTENT
Show 3 more permissions
  • Foreground serviceKeep running in the background, visible in the status bar.
  • FOREGROUND_SERVICE_SYSTEM_EXEMPTED
  • rereminder.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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