Radicale vs Decsync Calendar Sync
A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Radicale
Simple, lightweight CalDAV and CardDAV server
VS
Decsync Calendar Sync
File-based calendar and contacts synchronization
| Feature | Radicale | Decsync Calendar Sync |
|---|---|---|
| Category | Groupware | Calendar & Contacts |
| License | GPL-3.0 | GPL-3.0 |
| Language | Python | Kotlin |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 128 MB |
| Deployment | docker, bare-metal, source | source, binary |
| GitHub stars | ★ 4,877 | ★ 696 |
| First released | 2008 | 2018 |
| Replaces | Google Calendar, iCloud | Google Calendar |
Why pick each one
Choose Decsync Calendar Sync if…
- Server-free architecture
- Privacy friendly
Frequently asked questions
Is Radicale or Decsync Calendar Sync better?
Radicale is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Decsync Calendar Sync if its specific feature set fits your needs better.
Are Radicale and Decsync Calendar Sync free and open-source?
Yes. Radicale is licensed under GPL-3.0 and Decsync Calendar Sync under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Radicale and Decsync Calendar Sync with Docker?
Radicale: yes. Decsync Calendar Sync: check the project docs for container support.