OpenCalendar Sync vs Davis
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?
OpenCalendar Sync
Self-hosted shared calendar with public event pages
VS
Davis
Modern admin interface for sabre/dav CalDAV server
| Feature | OpenCalendar Sync | Davis |
|---|---|---|
| Category | Calendar & Contacts | Groupware |
| License | MIT | MIT |
| Language | TypeScript | PHP |
| Setup difficulty | Medium | Easy |
| Min. RAM | 256 MB | 128 MB |
| Deployment | docker, source | docker, bare-metal, source |
| GitHub stars | ★ 852 | ★ 727 |
| First released | 2014 | 2020 |
| Replaces | Calendly, Google Calendar | Google Calendar, iCloud |
Why pick each one
Choose OpenCalendar Sync if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Written in TypeScript
- Tiny footprint — runs in 256 MB RAM
Frequently asked questions
Is OpenCalendar Sync or Davis better?
Neither is universally better. OpenCalendar Sync has the larger community, while Davis is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are OpenCalendar Sync and Davis free and open-source?
Yes. OpenCalendar Sync is licensed under MIT and Davis under MIT. Both can be self-hosted at no software cost.
Can I run OpenCalendar Sync and Davis with Docker?
OpenCalendar Sync: yes. Davis: yes.