SHSelfHostIndex

DavMail vs Tasks.org CalDAV 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?
DA DavMail POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to VS TA Tasks.org CalDAV Sync Open-source calendar and task sync client for Android
FeatureDavMailTasks.org CalDAV Sync
CategoryCalendar & ContactsCalendar & Contacts
LicenseGPL-2.0GPL-3.0
LanguageJavaKotlin
Setup difficultyMediumEasy
Min. RAM512 MB128 MB
Deploymentbare-metalbinary, source
GitHub stars★ 751★ 2,784
First released20202013
Replaces—Google Calendar Sync, iCloud sync

Why pick each one

Choose DavMail if…

  • Released under the GPL-2.0 license
  • Written in Java
  • Lightweight — runs in 512 MB RAM
DavMail details

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

Frequently asked questions

Is DavMail or Tasks.org CalDAV Sync better?

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

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

Yes. DavMail is licensed under GPL-2.0 and Tasks.org CalDAV Sync under GPL-3.0. Both can be self-hosted at no software cost.

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

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

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