Etar-Calendar

The premium Open Source alternative to Google Calendar

🎯 Best for:Android users seeking a de-Googled mobile experience.

What is Etar-Calendar?

A lightweight, privacy-focused calendar application for Android based on the AOSP calendar source. It supports CalDAV synchronization and local storage without requiring proprietary Google Play Services.

Tech Stack
JavaCalendar & Scheduling

Why Etar-Calendar?

  • No background tracking
  • Supports multiple sync protocols
  • Material Design interface

Limitations

  • No built-in video conferencing
  • Limited smart suggestions
  • Android only
3/5/2026
Last Update
423
Forks
431
Issues
GPL-3.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to Etar-Calendar instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Google Calendar)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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