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Blink Comparison

Simplifies comparing photos of tamper-evident seals using your eyes
The concept of "blink comparison" method is simple - the app allows you to quickly switch pictures without delay so you can see the differences.

"Blink comparison" method uses high efficiency pattern recognition by human eyes, to permit quick verification between a reference picture and an actual one being taken on the spot. For example, in the goal of detecting tampering in high contrast nail polish tamper-evident seals.

📋 Features
* Free and Open Source software (FOSS)
* Support for various platforms and devices (currently Android only)
* Add and store reference pictures in the app or take a photo on the spot
* Encrypting images (optional), making it harder to steal or replacement
* Compare a reference image with the one just taken using "blink comparison" method
* Helps to take a compared photo in the correct position, at the correct angle, lighting and distance
* Material Design 3
* Night theme
* Responsive UI for different devices form factors

For more information, please see here: https://github.com/proninyaroslav/blink-comparison/blob/HEAD/README.md
Privacy Policy: https://github.com/proninyaroslav/blink-comparison/blob/HEAD/PRIVACY.md

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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 1.2.1 (5073) suggested Added on Oct 27, 2024

    x86_64

    This version requires Android 5.0 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.
    • 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"
    • show notifications
      Allows the app to show notifications
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (9.0)
    • org.proninyaroslav.blink_comparison.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 12 MiB PGP Signature | Build Log

  • Version 1.2.1 (5072) - Added on Oct 27, 2024

    arm64-v8a

    This version requires Android 5.0 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.
    • 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"
    • show notifications
      Allows the app to show notifications
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (9.0)
    • org.proninyaroslav.blink_comparison.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 12 MiB PGP Signature | Build Log

  • Version 1.2.1 (5071) - Added on Oct 27, 2024

    armeabi-v7a

    This version requires Android 5.0 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.
    • 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"
    • show notifications
      Allows the app to show notifications
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • control vibration
      Allows the app to control the vibrator.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.
      (9.0)
    • org.proninyaroslav.blink_comparison.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 11 MiB PGP Signature | Build Log