Blink Comparison

Simplifies comparing photos of tamper-evident seals using your eyes

New in version 1.1.1

Fixed crash when adding reference image

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; all pictures are encrypted, 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
* 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

Author: Yaroslav Pronin
License: GNU General Public License v3.0 or later
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github.com/proninyaroslav/blink-comparison#-donation

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.

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Version 1.1.1 (5) suggested Added on 2022-03-10

arm64-v8a armeabi-v7a x86 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
- run foreground service
  
  Allows the app to make use of foreground services.
- take pictures and videos
  
  This app can take pictures and record videos using the camera while the app is in use.
Download APK 23 MiB PGP Signature | Build Log
Version 1.1.0 (4) - Added on 2022-02-26

arm64-v8a armeabi-v7a x86 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
- run foreground service
  
  Allows the app to make use of foreground services.
- take pictures and videos
  
  This app can take pictures and record videos using the camera while the app is in use.
Download APK 23 MiB PGP Signature | Build Log
Version 1.0.2 (3) - Added on 2022-02-01

arm64-v8a armeabi-v7a x86 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
- run foreground service
  
  Allows the app to make use of foreground services.
- take pictures and videos
  
  This app can take pictures and record videos using the camera while the app is in use.
Download APK 23 MiB PGP Signature | Build Log