Open Source Kotlin Alarm Clocks

Clock You is a free, open-source Android clock application designed around privacy and Material Design 3. It brings essential timekeeping tools into a unified interface with a modern visual appearance. Users can access a clock, create alarms, configure countdown timers, and measure elapsed time with a stopwatch. Its interface follows Material You design principles for consistency with supported Android devices. Light and dark themes allow the appearance to adapt to different environments and preferences. Built with Kotlin and Jetpack Compose, the application emphasizes responsive navigation and straightforward controls. Clock You provides an alternative to proprietary clock applications while maintaining an accessible and minimalist design. Its source code is publicly available for community contributions and customization.

Fossify Clock combines essential Android timekeeping tools in a customizable, privacy-focused application. It provides alarms, countdown timers, a stopwatch, and home screen clock widgets. Users can create multiple alarms with selected weekdays, personalized labels, vibration settings, and custom ringtones. Gradually increasing alarm volume and adjustable snooze controls support flexible wake-up routines. The stopwatch measures elapsed time and individual laps, with options to sort recorded results. Countdown timers include configurable sounds, vibration, and pause controls. Home screen widgets support analog and digital designs with adjustable colors and transparency. The application works offline without advertisements or unnecessary permissions and includes customizable Material Design themes.

QRAlarm is an Android alarm clock designed to help users wake up by requiring a physical action before dismissing an alarm. Instead of allowing immediate dismissal, it asks users to scan a previously configured QR code or barcode. The code can be placed away from the bed to encourage movement after waking. This approach helps reduce habitual snoozing and accidental alarm dismissal. Users can create and configure alarms through a straightforward interface. Its lightweight design focuses on alarm management rather than unrelated productivity features. The application is particularly suitable for heavy sleepers and people developing consistent morning routines. QRAlarm provides an alternative to conventional alarms that can be dismissed without leaving bed.