DAViCal vs Kontact

A side-by-side comparison of two self-hosted groupware options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureDAViCalKontact
CategoryGroupwareGroupware
LicenseGPL-2.0GPL-2.0
LanguagePHPC++
Setup difficultyMediumMedium
Min. RAM256 MB512 MB
Deploymentdocker, bare-metal, sourcebinary, source
GitHub stars★ 200★ 200
First released20072004
ReplacesGoogle Calendar, Microsoft ExchangeMicrosoft Outlook

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 Kontact if…

  • Released under the GPL-2.0 license
  • Written in C++
  • Lightweight — runs in 512 MB RAM
Kontact details

Frequently asked questions

Is DAViCal or Kontact better?

Neither is universally better. DAViCal has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are DAViCal and Kontact free and open-source?

Yes. DAViCal is licensed under GPL-2.0 and Kontact under GPL-2.0. Both can be self-hosted at no software cost.

Can I run DAViCal and Kontact with Docker?

DAViCal: yes. Kontact: check the project docs for container support.

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