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HeyUtho

An Android alarm you can only turn off by doing math

HeyUtho is an alarm clock with no snooze button. When it rings, you have to solve three quick math problems in a row before it goes quiet, and one wrong answer sends you back to the start. By the time you've done the math, you're awake. It's free and open source, with no ads and no account, and everything stays on your phone. The name is Bengali: "utho" means "wake up".

Live / Release View code
HEHeyUtho
Status
Released
Platform
Android
Stack
8 technologies
Source
Open source

Why I built it

My friend Sajib kept hitting snooze half-asleep and missing his mornings, so he started building an alarm that makes your brain do a little work first. He had the core idea running; I jumped in to help turn it into something people would actually want to install, with a cleaner look, a proper name, and releases that ship themselves instead of being built by hand.

My role

Contributor. I did the blue Material 3 redesign, the HeyUtho rebrand and icon, a time-picker fix, and the automated release pipeline. The original app is by Sajib (@SajibAhmedNls).

How it fits together

5 layers

  1. 01Compose UI (single activity)
  2. 02ViewModel (MVVM)
  3. 03Repository + Room database
  4. 04AlarmManager exact scheduling
  5. 05Ringing service in its own process

Key features

  • Solve 3 math problems in a row to stop the alarm; a wrong answer resets the streak
  • Keeps ringing even if you swipe the app away
  • Back and volume buttons are blocked while it rings
  • Shows over the lock screen and turns the display on
  • Alarms come back on their own after a restart
  • Repeat on any days, with labels and per-alarm vibration
  • Light and dark themes, with an always-dark ringing screen
  • Signed APK released automatically once CI passes

Built with

  • Kotlin
  • Jetpack Compose
  • Material 3
  • Room
  • Coroutines & StateFlow
  • AlarmManager
  • Foreground services
  • GitHub Actions

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