I'm seeking recommendations for an Android app to view 2 images side-by-side (or one above the other) so that I can easily compare them.
Specifically, I want to compare quality of JPG image files to RAW (DNG) image files. I want to be able to load the JPG image on one side, and the RAW (DNG) image on the other side.
It's essential that I can zoom in on both sides. To make this easier, it would be great if the app could simultaneously zoom in on both images to the same level ("synchronized zooming").
Gratis apps are preferred, but I will consider apps of any price.