Sleep Timer

Simplest Sleep TimerApache-2.0

FallASleep - Device sleep timer

Lock the screen after a timer runs out.MIT

Go To Sleep

Count sheep until you fall asleep!GPL-3.0-only

plees-tracker

Plees Tracker is a simple sleep tracker for your Android phone.MIT

Warpclock

Quick shortcut for setting alarms based on your preferred amount of sleep.GPL-3.0-only

SleepyWifi

Disables the Wi-Fi when the phone is in sleep modeGPL-3.0-or-later

Fossify Music Player

Open-source and Ad-free Music Player with customizable widget & sleep timerGPL-3.0-only

PocketPlan

To-do list ✔️ Birthdays 🎂 Notes 📝 Shopping list 📜 Sleep reminder 💤MIT

Smoke Reducer

Track your smoking habitsApache-2.0

FocusPodcast

FocusPodcast is a quality podcast management and playback applicationGPL-3.0-only

Power Button Tile

Add up to 3 quick settings tiles to the quick settings layoutGPL-3.0-only

moreDays

A motivation app with journalingGPL-3.0-only

Sunrise Signal

Morning wood tracker app for men's healthGPL-2.0-only

PipePipe

A FLOSS Android app to let you browse YouTube, NicoNico and BiliBili freely.GPL-3.0-or-later

Harmony Music

An Android App for streaming MusicGPL-3.0-only

Music Player Lite

An elegant and light weight music playerUnlicense

Productivity Tools - timeto.me

Pomodoro, checklists, goals, tasks, repetitive, calendar and time trackingGPL-3.0-or-later

Lunar Launcher

Feature rich android home with minimal look.GPL-3.0-only

Metro - A music player for Android

Best material design music player for AndroidGPL-3.0-only

Soothing Noise Player

Play soothing sound effects to help you relax and drown out background noise.GPL-3.0-only