EteSync - Secure Data Sync vs Tuta Calendar
Side-by-side comparison of two open source alternatives
EteSync - Secure Data Sync
Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars, and tasks (using Tasks.org and OpenTasks). For notes, please use the EteSync Notes application. In order to use this application you need to have an account with EteSync (paid hosting), or run your own instance (free and open source). Check out https://www.etesync.com/ for more information. Easy to Use =========== EteSync is very easy to use. It seamlessly integrates with Android so you won't even notice you are using it. Security doesn't always have to come at a cost. Secure & Open ============ Thanks to zero-knowledge end-to-end encryption, not even we can see your data. Don't believe us? You shouldn't, just verify yourself, both the client and server are open source. Full History ========= A full history of your data is saved in an encrypted tamper-proof journal which means you can review, replay and revert any changes you have made at any point in time. How does it work? =============== EteSync integrates seamlessly with your existing apps. All you need to do is sign up (or run your own instance), install the app, and enter your password. After that, you will be able to save your contacts, calendar events and tasks to EteSync using your existing Android apps, and EteSync will transparently encrypt your data and update the change journal in the background. More security, same work-flow.
Tuta Calendar
Take your privacy to the next level with the secure Tuta Calendar app. This encrypted time-management tool is the most private way to organize your busy schedule – and it’s quick to navigate, comes with dark and light mode, plus, it’s perfectly integrated with the Tuta Mail app. SECURE CALENDAR * Quantum-safe encryption: End-to-end encrypted data exchange with all Tuta Calendar users and with users of other calendar apps (via optional password-protected event invites). * No ads, no tracking, and no data sharing: We protect your privacy. * Zero-knowledge architecture: Entire events, including event notifications, are encrypted and hidden from our servers. We do not know when your meetings are taking place, who they are with, or what they are about. * Based in Germany: All data is safeguarded by strict German data protection laws. * Fully GDPR-compliant FULLY FEATURED * **SYNC ON ALL DEVICES:** Your Tuta planner syncs automatically on all devices and browsers. * **RECURRING EVENTS:** Use daily, weekly, monthly, yearly or custom repetitions. * **MULTIPLE CALENDAR VIEWS:** Switch in one tap between agenda, daily, weekly, and monthly view. * **SYNC EXTERNAL CALENDARS:** Events will automatically sync if the owner adds or updates events or meetings on external calendars. Once subscribed, no action is needed. * **MANAGE UNLIMITED CALENDARS (paid feature):** You can toggle different calendars into view with a single press or leave all events visible for a complete overview. * **EVENT REMINDERS:** Never miss a date. Tuta’s zero-knowledge reminders make sure you never miss an appointment. * **LINK CALENDAR EVENTS TO EMAILS AND CONTACTS:** Your Tuta Calendar is directly linked to your Tuta Mail account, so when creating events you can easily invite your contacts or send invites to others via email. * **OFFLINE SUPPORT:** Independent standalone app so you can check your schedule both online and offline!
| Feature | EteSync - Secure Data Sync | Tuta Calendar |
|---|---|---|
| License | GPL-3.0-only | GPL-3.0-or-later |
| Install sources | F-DroidGitHub | F-DroidGitHub |
| Categories | Password ManagerProductivityBrowserCalendar | BrowserCalendar |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |