Android open source calendar
CalDAV/CardDAV suite and sync app for Android
Replacement for the Java date and time classes prior to Java SE 8
Customizable React-Native calendar components
A beautiful Kotlin app to remember birthdays and events
A complete Getting Things Done (GTD) productivity system for desktop a
A React-Native datetime-picker for Android and iOS
Prayer Times for iPhone and Android built-in Calendar
Cross-platform, parametric note-taking application
Työvuorosuunnittelutyökalu Kalenteri 2026
Apps notes for Windows, iOS and Android, with direct local sync
Plan offline. Post when ready. No cloud, no account.
Offline planner with time blocking, timers and daily reviews
Hotel Property Management with OTA channel support.
AI-native open-source HR: native Claude & MCP integration
A simple calendar with events, customizable widgets and no ads
The Free & Popular Snipe-IT Web Software in a Complete Virtual Machine
Free & Open Capacity Planning Software in a Complete Virtual Machine
Android calendar app focusing on a good view of a month.
A beautiful material calendar with endless scroll, range selection
Date Picker Calendar extension for OpenOffice Calc
Platform to help this and other clubs organize their events
One-way synchronization from Lotus Notes Calendar to Google Calendar
Pick a date or time on Android in style