Bluemoon

Open source, privacy friendly menstruation tracking app. Your period, your data!GPL-3.0-or-later

log28

A simple no-frills period trackerLGPL-3.0-only

Periodical

Menstrual/period calendarGPL-3.0-or-later

HIIT

Interval timer0BSD

Geological Time Scale

Display the geological time scale of the Earth's history.GPL-3.0-or-later

Average data usage widget

Check your data usage and compare it with an indicator of the average usage.MIT

drip. menstrual cycle and fertility tracking

Open-source, non-commercial and leaves your data on your phone.GPL-3.0-only

TasClock

Track your work timeGPL-2.0-only

Keep Alive

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

Subz

Subscription and contract management with notification function.MIT

DataStopwatch

Stopwatch, but for data usageGPL-3.0-or-later

UK COVID-19 Venue Check-in

Third-party app to check in to venues by scanning an NHS Test and Trace QR codeGPL-3.0-or-later

Your local weather

Application displays current weather and location wherever you are.GPL-3.0-or-later

Simple Money Tracker

Yet another personal accounting appMIT

Money Tracker

Track your money easily and fully freeMIT

Wi-Fi Reminders

WiFi based remindersGPL-3.0-or-later

PasteBin

Client application for Ubuntu pastebinGPL-3.0-only

Hauk

Self-hosted real-time location sharingApache-2.0

Data Monitor

Track all your data usage - at one placeGPL-3.0-only

Subsonic

Play media across the networkGPL-3.0-only