Fossify Gallery★★★★☆Basic on-device gallery that lets you manage your photos without sending them to a cloud service just to deal with what’s on your phone.
Mobile Apps and Preserving Photo MetadataYou’d think that ‘don’t change the stuff that the user isn’t changing’ would be a low bar, but most image editors I’ve used on Android tend to mess up the EXIF metadata one way or another.
Scrambled EXIF★★★★☆One of those ‘does one thing really well’ apps: It’s a filter that removes all the date, time, location, camera, and other metadata from a photo as you share it from your phone.