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Simple-Calendar

The premium Open Source alternative to Google Calendar

🎯 Best for:Android users seeking a clean, private, and ad-free alternative to mainstream calendar apps.
Visit WebsiteCompare with Google Calendar
3.6k
Stars
GPL-3.0License

What is Simple-Calendar?

Replaces Google Calendar with a privacy-focused, offline-first Android application. It features CalDAV synchronization and customizable widgets without tracking or advertisements.

Tech Stack
KotlinCalendar & Scheduling

Why Simple-Calendar?

  • • No internet permission required
  • • Highly customizable widgets
  • • Lightweight and fast

Limitations

  • • No native desktop app
  • • Manual setup for cloud sync
  • • Limited collaboration features
3/5/2026
Last Update
1,176
Forks
306
Issues
GPL-3.0
License
Financial Leak Detected

Stop the "SaaS Tax"

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

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

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