EteSync

End-to-end encrypted and journaled calendar and contacts cloud sync adapter
Secure, End-to-End encrypted and journalized personal information synchronization for Android, the desktop and the web. Currently supports contacts and calendars, with more on the way.

In order to use this application you need to have an account with EteSync, or run your own instance. Check out https://www.etesync.com/ for more information. The server code is available at https://github.com/etesync/journal-manager

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 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.

Packages

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 0.20.4 (29) - Added on 2018-04-24

    This version requires Android 4.1 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Download APK 4.8 MiB PGP Signature

    Permissions
    • android.permission.ACCESS_NETWORK_STATE
    • android.permission.ACCESS_WIFI_STATE
    • android.permission.INTERNET
    • android.permission.READ_SYNC_SETTINGS
    • android.permission.READ_SYNC_STATS
    • android.permission.WRITE_SYNC_SETTINGS
    • android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
    • android.permission.AUTHENTICATE_ACCOUNTS (?)
    • android.permission.GET_ACCOUNTS (?)
    • android.permission.MANAGE_ACCOUNTS (?)
    • android.permission.WRITE_EXTERNAL_STORAGE (?)
    • android.permission.READ_EXTERNAL_STORAGE
    • android.permission.READ_CONTACTS
    • android.permission.WRITE_CONTACTS
    • android.permission.READ_CALENDAR
    • android.permission.WRITE_CALENDAR
    • org.dmfs.permission.READ_TASKS
    • org.dmfs.permission.WRITE_TASKS
  • Version 0.20.3 (28) - Added on 2018-04-12

    This version requires Android 4.1 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Download APK 4.8 MiB PGP Signature

    Permissions
    • android.permission.ACCESS_NETWORK_STATE
    • android.permission.ACCESS_WIFI_STATE
    • android.permission.INTERNET
    • android.permission.READ_SYNC_SETTINGS
    • android.permission.READ_SYNC_STATS
    • android.permission.WRITE_SYNC_SETTINGS
    • android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
    • android.permission.AUTHENTICATE_ACCOUNTS (?)
    • android.permission.GET_ACCOUNTS (?)
    • android.permission.MANAGE_ACCOUNTS (?)
    • android.permission.WRITE_EXTERNAL_STORAGE (?)
    • android.permission.READ_EXTERNAL_STORAGE
    • android.permission.READ_CONTACTS
    • android.permission.WRITE_CONTACTS
    • android.permission.READ_CALENDAR
    • android.permission.WRITE_CALENDAR
    • org.dmfs.permission.READ_TASKS
    • org.dmfs.permission.WRITE_TASKS
  • Version 0.20.2 (27) - Added on 2018-02-11

    This version requires Android 4.1 or newer.

    It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.

    Download APK 4.8 MiB PGP Signature

    Permissions
    • android.permission.ACCESS_NETWORK_STATE
    • android.permission.ACCESS_WIFI_STATE
    • android.permission.INTERNET
    • android.permission.READ_SYNC_SETTINGS
    • android.permission.READ_SYNC_STATS
    • android.permission.WRITE_SYNC_SETTINGS
    • android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
    • android.permission.AUTHENTICATE_ACCOUNTS (?)
    • android.permission.GET_ACCOUNTS (?)
    • android.permission.MANAGE_ACCOUNTS (?)
    • android.permission.WRITE_EXTERNAL_STORAGE (?)
    • android.permission.READ_EXTERNAL_STORAGE
    • android.permission.READ_CONTACTS
    • android.permission.WRITE_CONTACTS
    • android.permission.READ_CALENDAR
    • android.permission.WRITE_CALENDAR
    • org.dmfs.permission.READ_TASKS
    • org.dmfs.permission.WRITE_TASKS