Use for "Spot the difference" puzzles

[ppete2]

With some improvements this app would be appropriate for help to solve "Spot the difference" puzzles.

A user should take photos of both images of the puzzle, then use compare mode "Transparent". Now the improvement to be done: Both images need to exactely overlay, therefor one image has to be shifted, rotated, zoomed and finally locked. So after these adaptions, the user should be able to zoom and shift both locked images and use the transparency slider to see differences between both images.

[endolith]

Just cross your eyes until the two images are aligned as one, and look for the flickering parts 😬