SHSelfHostIndex

Tasks.org CalDAV Sync vs ETAR

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

Not the right match-up?
TA Tasks.org CalDAV Sync Open-source calendar and task sync client for Android VS ET ETAR Open-source calendar server companion for events
FeatureTasks.org CalDAV SyncETAR
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-3.0GPL-3.0
LanguageKotlinJava
Setup difficultyEasyMedium
Min. RAM128 MB256 MB
Deploymentbinary, sourcedocker, source
GitHub stars★ 2,784★ 2,565
First released20132016
ReplacesGoogle Calendar Sync, iCloud syncGoogle Calendar

Why pick each one

Choose Tasks.org CalDAV Sync if…

  • Released under the GPL-3.0 license
  • Easy to set up — beginner-friendly
  • Active community (2.8k GitHub stars)
  • Written in Kotlin
Tasks.org CalDAV Sync details

Choose ETAR if…

  • Open ecosystem
  • No vendor lock-in
ETAR details

Frequently asked questions

Is Tasks.org CalDAV Sync or ETAR better?

Tasks.org CalDAV Sync is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider ETAR if its specific feature set fits your needs better.

Are Tasks.org CalDAV Sync and ETAR free and open-source?

Yes. Tasks.org CalDAV Sync is licensed under GPL-3.0 and ETAR under GPL-3.0. Both can be self-hosted at no software cost.

Can I run Tasks.org CalDAV Sync and ETAR with Docker?

Tasks.org CalDAV Sync: check the project docs for container support. ETAR: yes.

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