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Teamup CalendarLibreBooking
Freemium

A calendar can be created from the homepage; business features are sold as plans.

 Free

Free and open source under the GPL-3.0 license.

Android, Web Web, Self-hosted
  • Twelve views including timeline, scheduler and table
  • Calendars can be shared across organizations
  • Waitlists, quotas and credits for reservations
  • LDAP, Active Directory, OAuth2 and SAML sign-in
  • Hosted service with data on Teamup's servers
  • Aimed mainly at business use
  • Aimed at organizations rather than personal appointment booking
  • Requires running and maintaining your own server
Downloadable app, Web application, Hosted service Self-hosted
Closed source Open source
License not stated License: GPL-3.0
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.