DAViCal vs Tasks.org Server alt nono Calendarserver

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?
FeatureDAViCalTasks.org Server alt nono Calendarserver
CategoryGroupwareCalendar & Contacts
LicenseGPL-2.0Apache-2.0
LanguagePHPPython
Setup difficultyMediumHard
Min. RAM256 MB512 MB
Deploymentdocker, bare-metal, sourcebare-metal, source
GitHub stars★ 200★ 506
First released20072007
ReplacesGoogle Calendar, Microsoft ExchangeGoogle Calendar, Exchange

Why pick each one

Choose DAViCal if…

  • Released under the GPL-2.0 license
  • First-class Docker support for quick deployment
  • Written in PHP
  • Tiny footprint — runs in 256 MB RAM
DAViCal details

Choose Tasks.org Server alt nono Calendarserver if…

  • Released under the Apache-2.0 license
  • Written in Python
  • Lightweight — runs in 512 MB RAM
Tasks.org Server alt nono Calendarserver details

Frequently asked questions

Is DAViCal or Tasks.org Server alt nono Calendarserver better?

Neither is universally better. Tasks.org Server alt nono Calendarserver has the larger community, while DAViCal is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.

Are DAViCal and Tasks.org Server alt nono Calendarserver free and open-source?

Yes. DAViCal is licensed under GPL-2.0 and Tasks.org Server alt nono Calendarserver under Apache-2.0. Both can be self-hosted at no software cost.

Can I run DAViCal and Tasks.org Server alt nono Calendarserver with Docker?

DAViCal: yes. Tasks.org Server alt nono Calendarserver: check the project docs for container support.

Related comparisons