EteSync - Secure Data Sync
8.6 40
v2.6.0 by Tengu
Editor's Review
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.About EteSync
EteSync (Package Name: com.etesync.syncadapter) is developed by Tengu and the latest version of EteSync - Secure Data Sync 2.6.0 was updated on September 19, 2025. EteSync - Secure Data Sync is in the category of Tools with the feature Apps with End-to-End Encryption and Sync Contacts, etc. You can check all apps from the developer of EteSync - Secure Data Sync and find 200 alternative apps to EteSync - Secure Data Sync on Android. Currently this app is for free. This app can be downloaded on Android 5.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
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.
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.
Read More
EteSync Features
Previous Versions
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Requires Android: Android 5.0+
Architecture: arm64-v8a, armeabi-v7a, x86, x86_64
Screen DPI: 120-640dpi
SHA1: 481fb464d453d42fa240f732bef847358605ed4e
Size: 11.21 MB
Requires Android: Android 5.0+
Architecture: arm64-v8a, armeabi-v7a, x86, x86_64
Screen DPI: 120-640dpi
SHA1: 70f1398ebd29ffbf75b1cb28ea13a5a94b26040a
Size: 11.2 MB
What's New:
* Remove unused READ_MEDIA_IMAGES permission.
* Fix build with latest Android SDKs
* Bump target SDK
* Fix build with latest Android SDKs
* Bump target SDK
Requires Android: Android 5.0+
Architecture: arm64-v8a, armeabi-v7a, x86, x86_64
Screen DPI: 120-640dpi
SHA1: 4a7b45b52bc4662c90095add6b54242817e0e90d
Size: 11.33 MB
What's New:
* Fix error when importing from file in Android 13+
Requires Android: Android 5.0+
Architecture: arm64-v8a, armeabi-v7a, x86, x86_64
Screen DPI: 120-640dpi
SHA1: f3447fd2888d1d2a8c99465278888b98f5dcf3f7
Size: 11.33 MB
What's New:
* Fix task sync adapter issues when no tasks are found
* Add required notifications permissions to app manifest
* Add required notifications permissions to app manifest
More Information
Package Name:
Update Date:
2025-09-19
Latest Version:
2.6.0
Need Update:
Available on:
Requirements:
Android 5.0+
Report:
Safe to Download
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