calypso alternatives and similar software solutions

Based on the "Calendar and Address Books" category.
Alternatively, view calypso alternatives based on common mentions on social networks and blogs.

Radicale

7.2 9.3 L2 calypso VS Radicale

A simple CalDAV (calendar) and CardDAV (contact) server.
Baïkal

6.8 6.8 L3 calypso VS Baïkal

Baïkal is a Calendar+Contacts server

The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

Promo workos.com

sabre/dav

6.2 8.1 L4 calypso VS sabre/dav

sabre/dav is a CalDAV, CardDAV and WebDAV framework for PHP
AgenDAV

4.7 0.0 L2 calypso VS AgenDAV

A CalDAV web client similar to Google Calendar
ownCloud calendar

3.4 6.4 calypso VS ownCloud calendar

Calendar app for ownCloud
CalendarServer

1.2 0.0 L2 calypso VS CalendarServer

mirror http://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk
DAViCal

- calypso VS DAViCal

A server for calendar sharing