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Exfilac

Simple, reliable, automated S3 uploads for Android.
The exfilac application is a simple application that aims to do one thing well:
Get data out of Android devices and into S3 buckets.

Features:

- The application can work with any S3-compatible storage provider. This
includes Amazon AWS, Vultr Object Storage, IDrive®, and many other commercial
offerings. Additionally, the application can work with self-hosted S3 storage
solutions such as MinIO.
- The application can (recursively) upload the contents of any directory on an
Android device to which it has been granted access. The set of directories
is configurable.
- The application conserves precious bandwidth by avoiding uploading files that
already exist on the remote storage. The cryptographic hashes of files are
computed locally and files are only uploaded if the hashes of
the files on the remote server do not match.
- The application can be configured to upload files on a timed schedule,
and/or in response to various events occurring on the device such as a photo
being taken, or the network becoming available.
- The application vigorously respects the privacy of users: The application
contains no telemetry or analytics of any kind, and never collects any user data.
- Development of the application is performed in the open. The complete source code is made available under
an extremely liberal ISC license, and development and bug tracking is handled
in a public GitHub repository.
- The application rejects bug-prone Android programming practices and libraries
and instead strives for correctness and stability using battle-hardened,
well-tested components designed outside the traditional Android ecosystem.
- The application adopts a cautious development approach and does not pursue
huge sets of complex features. The application attempts to adhere to the Unix
philosophy and provide a simple, sharp tool that does one thing well.
- The application attempts to respect the intelligence of users. Technical
details of many aspects of the system are clearly displayed onscreen, and
important information is not hidden in the misguided pursuit of
"user-friendliness".
- The application is comprehensively documented.

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Versions

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 1.1.3 (1103) suggested Added on Nov 07, 2024

    arm64-v8a armeabi x86 x86_64

    This version requires Android 8.0 or newer.

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

    Permissions
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • change network connectivity
      Allows the app to change the state of network connectivity.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • com.io7m.exfilac.main.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 18 MiB PGP Signature | Build Log

  • Version 1.1.2 (1102) - Added on Oct 25, 2024

    arm64-v8a armeabi x86 x86_64

    This version requires Android 8.0 or newer.

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

    Permissions
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • change network connectivity
      Allows the app to change the state of network connectivity.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • com.io7m.exfilac.main.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 18 MiB PGP Signature | Build Log

  • Version 1.1.1 (1101) - Added on Oct 17, 2024

    arm64-v8a armeabi x86 x86_64

    This version requires Android 8.0 or newer.

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

    Permissions
    • take pictures and videos
      This app can take pictures and record videos using the camera while the app is in use.
    • change network connectivity
      Allows the app to change the state of network connectivity.
    • run foreground service
      Allows the app to make use of foreground services.
    • run foreground service with the type "dataSync"
      Allows the app to make use of foreground services with the type "dataSync"
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • show notifications
      Allows the app to show notifications
    • run at startup
      Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
    • com.io7m.exfilac.main.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 18 MiB PGP Signature | Build Log