A free app for Android, by Sufficiently Advanced Apps.

Pic Perfect is a must-have app for people who take lots of photos. It helps you find the best image out of a set you choose by showing you two at a time, side by side, and then giving you options to copy, move, delete, or share them.

With Pic Perfect, you no longer have to flip back and forth between images in your gallery to pick the best photo for an album cover or to post on Facebook/Instagram/etc. And it’s even more ideal for burst mode, since it will disregard pictures it can guess you don’t want.