ICS Theme for AnySoftKeyboard

Ice Cream Sandwich Theme for AnySoftKeyboardApache-2.0

Calendar Import-Export

Import, Export & Backup your calendars using ics filesGPL-3.0-only

ICSx⁵

Subscribe to Webcal (.ics) calendarsGPL-3.0-only

Working Time Account

Record working hours, generate and send reports (PDF, CSV and ICS)GPL-3.0-or-later

Etar - OpenSource Calendar

Etar is a material designed open source calendar, for everyone!GPL-3.0-only

CalEF (Calendar Entry Formatter)

Create and send Appointment-Confirmation-Message from Android-Calendar-Entry.GPL-3.0-or-later

DanXi

Maybe the best all-rounded service app for Fudan University students.GPL-3.0-only

Hypezig

Offline-compatible browser for cultural events in LeipzigGPL-3.0-or-later

Identiconizer!

Identicons for your contactsApache-2.0

Lampshade

TV tropes wrapperMIT

Kolab Client

Sync contacts/calendarGPL-3.0-only

DSub

Play music across the networkGPL-3.0-only

jtx Board journals|notes|tasks

Keep track of journals, notes & tasks - iCalendar compliant and syncable with yoGPL-3.0-only