fruux

fruux is a unified contacts, calendars and tasks platform designed for teams to securely share, sync, and collaborate across devices. Built on open standards CardDAV and CalDAV with automatic backups and encryption, it keeps data consistent for all team members. Based in Münster, Germany, fruux emphasizes privacy, open-source foundations (sabre/dav), and easy setup for enterprise use.

• Cross-device syncing of contacts, calendars and tasks
• Open standards: CardDAV and CalDAV
• Team collaboration with access control, delegation and roles
• Public calendars and team management
• Automatic backups and encryption with data hosted on German servers
• Premium support and a developer API backed by sabre/dav open-source technology

• Vendor- and platform-agnostic via open standards (CardDAV/CalDAV)
• Cross-platform compatibility across Windows, macOS, Linux, iOS and Android
• Data privacy and security: encryption, German data hosting, and non-selling of user data
• Strong open-source foundation (sabre/dav) with an active community
• Enterprise-oriented features like team management, delegation and centralized sharing

Every plan includes free updates, constant backups, SSL encryption, and unlimited contacts, calendars and tasks. Plans:

• Basic: free, Up to 2 shares, Up to 2 devices
• Team: €20/month (includes 5 team members); Additional members €4/month; Pro features for all members; Easy team management; Team address books; Schedule meetings
• Pro: €4/month (or €40/year); All basic features; Unlimited shares; Up to 10 devices Note: All plans provide unlimited data storage within the plan and access to dedicated support.