SilentSuite is described as 'End-to-end encrypted sync for calendar, contacts and tasks. Integrates with your existing apps, data is encrypted on your devices before it ever reaches the server' and is a Calendar app in the office & productivity category. There are more than 10 alternatives to SilentSuite for a variety of platforms, including Android, Android Tablet, Web-based, F-Droid and iPhone apps. The best SilentSuite alternative is Google Calendar. It's not free, so if you're looking for a free alternative, you could try Google Calendar or Proton Calendar. Other great apps like SilentSuite are Tuta Calendar, DAVx5, Etar and Notion Calendar.
Manage events seamlessly with syncing across devices, automatic event creation from Gmail, shareable schedules, customizable reminders, and a user-friendly interface. Features include dark mode, integration with Google services, and support for recurring events and global time zones.
United States
Switzerland
Your privacy-aware, open-source calendar with intuitive design and multi-platform syncing.
India
Tuta Calendar offers secure event organization with end-to-end encryption and no ads or tracking. Enjoy multi-device sync, multiple calendar views, and offline access. Fully compliant with strict German data protection laws. Manage recurring events, unlimited calendars, and seamlessly integrate with Tuta Mail.
Germany
EU
GermanyEU
Experience a fully integrated calendar with Notion, syncing events from Google Calendar, offering built-in scheduling, time zone support, and the ability to connect multiple accounts. Manage all events, personal and work, with a modern design, light and dark modes, and Lock Screen support for iOS 17.
United States
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.
GermanyEU
Keep track of your busy schedule and share it with others using Calendar. Create separate calendars — one for home, another for school, a third for work, and so on. See all your calendars in a single window or choose to see only the calendars you want.
United States
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.
United Kingdom
The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server. Easily sync contacts from various devices with your Nextcloud and edit them online.
The only fully-functional open-source calendar app with Material You.
United States
Austria
