Cofi - Brew Timer

Open source coffee brew timer

Open TimeLimit

Simply limit the usage duration


Flexibly limit the usage duration


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


Task manager app, supporting syncing with Taskwarrior.

GPN 2022

GPN 2022 Schedule


Find the German public holidays per state and year


Sunlight and moonlight times (and alarms)

Persian Calendar

Android Persian Calendar

Calendar Import-Export

Import, Export & Backup your calendars using ics files


Shift Calendar

Super Productivity

Free to do list & time tracker for programmers & designers

Time Cop

A time tracking app that respects your privacy without being fancy.

Track Work Time

Track your work time

Grazer Linuxtage Schedule

Browse the "Grazer Linuxtage" schedule

Vacation Days

See when you’re free — Vacation Days helps you keep track of your days off.

Birday - Birthday Manager

A simple yet useful birthday manager. Birday is free and ad-free! 🥳

Did I Take My Meds?

An app to manage and track medication doses


colorful, text-based calendar widget

rC3 Schedule

Conference program app for the Remote Chaos Experience (rC3)

DiVOC Schedule

DiVOC Schedule

36C3 Schedule

Conference program app for the Chaos Communication Congress

Etar - OpenSource Calendar

Etar is a material designed open source calendar, for everyone!


A simple, multi-purpose counter app

Life Dots - Record and analyze

Record and analyze your life in 7 dimensions

Todo Agenda

Home screen widgets displaying events from selected calendars and task lists

Stocks Widget

Stock market ticker widget


Subscribe to Webcal (.ics) calendars


An essential meditation timer

CalEF (Calendar Entry Formatter)

Create and send Appointment-Confirmation-Message from Android-Calendar-Entry.