calcurse 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?
FeaturecalcurseDecsync Calendar Sync
CategoryCalendar & ContactsCalendar & Contacts
LicenseBSD-2-ClauseGPL-3.0
LanguageCKotlin
Setup difficultyEasyMedium
Min. RAM16 MB128 MB
Deploymentbinary, sourcesource, binary
GitHub stars★ 1,301★ 696
First released20042018
ReplacesGoogle CalendarGoogle Calendar

Why pick each one

Choose calcurse if…

  • Released under the BSD-2-Clause license
  • Easy to set up — beginner-friendly
  • Active community (1.3k GitHub stars)
  • Written in C
calcurse details

Choose Decsync Calendar Sync if…

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

Frequently asked questions

Is calcurse or Decsync Calendar Sync better?

calcurse 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 calcurse and Decsync Calendar Sync free and open-source?

Yes. calcurse is licensed under BSD-2-Clause and Decsync Calendar Sync under GPL-3.0. Both can be self-hosted at no software cost.

Can I run calcurse and Decsync Calendar Sync with Docker?

calcurse: check the project docs for container support. Decsync Calendar Sync: check the project docs for container support.

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