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User-controlled decryption operations

Emulates a smart card and lets you control the decryption operations
This software enables you to transparently encrypt your Dropbox folder on your
PC. It also lets you confirm the decryption operations on an Android smartphone,
which is used as an NFC-enabled token. Additionally, it supports sharing files
with other Dropbox users, while still encrypting the shared data. To really use
the app, you also need to install the encrypting program on your PC. It can be
found in the source code repository.


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 0.1.5 (6) suggested Added on 2019-04-06

    This version requires Android 4.4 or newer.

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

    • control Near Field Communication
      Allows the app to communicate with Near Field Communication (NFC) tags, cards, and readers.

    Download APK 268 KiB PGP Signature | Build Log