AquaDroid

Reminds you to drink water and tracks your water intake habitGPL-3.0-only

Transdroid

Manage BitTorrent clientsGPL-3.0-only

Calculate!

Set one-click emergency optionsGPL-3.0-only

Battery Tool | Hibernate Unused Apps

Automatically stop apps running in the background. Free, no ads and open source.GPL-3.0-only

Keep Alive

Notify others if you haven't used your device in a given period of timeApache-2.0

Tacere

Silence phone on calendar eventsBSD-3-Clause

Clock+

View time, set alarms and timersGPL-3.0-or-later

DualSim Reminder

Tools for dual SIM devices from SamsungGPL-2.0-only

SimpleReminder

Quickly create reminders and get notified laterGPL-3.0-or-later

RadioDroid

Browse and stream internet radiosGPL-3.0-only

Skewy - anti eavesdropping

A tool to prevent eavesdropping and ultrasonic access of your smart phone.GPL-3.0-only

SMS Scheduler

Lets you schedule an sms to be sent at a specific timeGPL-2.0-only

Just 24 Hours

Large digital clock in 24 hour formatMIT

DashClock Widget

Extensible lock screen widgetApache-2.0

BBS

Monitor battery behaviour with Better Battery StatsApache-2.0

Nanji clock widget

Clock widget for language learnersApache-2.0

BART Runner

Timetables for trains in the U.S.Apache-2.0

MRMCD 2023 Schedule

Schedule for the MRMCD conferenceApache-2.0

CLT 2023 Schedule

Conference schedule for the Chemnitzer Linux-Tage (CLT)Apache-2.0

nusic

Informs about new music of artists stored on the deviceGPL-3.0-only