A free program for Android, by SevenDroidApps.

Photo Comparer is an easy-to-use, handy application that allows you to edit and compare two images side by side. With it, you can easily change the brightness, saturation, and color of your pictures. You can even apply various filters to your images, including the popular filters such as saturation, contrast, and sharpness.

If you want to make sure that the images you are editing are identical, you can simply use the side-by-side comparison tool to make sure that they are. You can even apply various effects to your pictures, such as blur, saturation, and color change.

Photo Comparer is an extremely easy-to-use application that is suitable for all users.