Cost / License
- Free
- Open Source (GPL-3.0)
Platforms
- Android
- Android Tablet
- F-Droid




Baïkal is described as 'CalDAV and CardDAV server for calendar and contact data based on PHP, SQLite/MySQL, and SabreDAV' and is an app in the office & productivity category. There are more than 10 alternatives to Baïkal for a variety of platforms, including Linux, Web-based, Windows, Self-Hosted and Mac apps. The best Baïkal alternative is DAVx5, which is both free and Open Source. Other great apps like Baïkal are Nextcloud Calendar, fruux, Davis and Radicale.




Calendar interface for CalDAV enabling cross-device event sync, web-based editing, recurring events, Nextcloud Contacts integration, WebCal subscriptions, attendee invites, color coding, event notifications, privacy-focused hosting, and import/export support.

fruux is a free service that takes care of your contacts, calendars and more so you don't have to. Never manually copy contacts and calenders between your devices again!



Versatile CalDAV and CardDAV server solution offering seamless local and remote access to calendars and contacts, supports mobile and desktop clients, and provides configurable authentication options for secured data interaction and management.
SOGo is groupware server with a focus on scalability and open standards.
SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV and GroupDAV.Share your calendars, address books and mails in.



Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars and tasks. Everything is encrypted on the client-side and all the code (client and server) is open source.




A full-featured home-hosted Cloud Drive & Personal Assistant. Convert files, create archives, scan for viruses, perform OCR on images or documents, stream media, edit images and more! Compatible with HRC2 Apps!.




Automatically sync calendars and contacts between Thunderbird, Outlook and Android devices, without using the cloud or servers.




DAViCal is a server for calendar sharing. It is an implementation of the CalDAV protocol which is designed for storing calendaring resources on a remote shared server. It is a repository for calendar, todo, journal and vcard entries to be accessed via CalDAV clients such as...
It seems as some features Baikal is missing are implemented here.


A privacy-focused Android application for synchronizing calendars and contacts using CalDAV and CardDAV protocols. Built with Jetpack Compose and Material 3 design.




fruux is a service. Baikal is a server software. yet fruux developing sabre/dav. That would be Baikal alternative. And Baikal is built on sabre/dav framework.