Tasks.org CalDAV Sync vs Decsync Calendar Sync

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?
FeatureTasks.org CalDAV SyncDecsync Calendar Sync
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-3.0GPL-3.0
LanguageKotlinKotlin
Setup difficultyEasyMedium
Min. RAM128 MB128 MB
Deploymentbinary, sourcesource, binary
GitHub stars★ 2,784★ 696
First released20132018
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 Decsync Calendar Sync if…

  • Server-free architecture
  • Privacy friendly
Decsync Calendar Sync details

Frequently asked questions

Is Tasks.org CalDAV Sync or Decsync Calendar Sync better?

Tasks.org CalDAV Sync 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 Tasks.org CalDAV Sync and Decsync Calendar Sync free and open-source?

Yes. Tasks.org CalDAV Sync 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 Tasks.org CalDAV Sync and Decsync Calendar Sync with Docker?

Tasks.org CalDAV Sync: check the project docs for container support. Decsync Calendar Sync: check the project docs for container support.

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