The best photo editing app for iOS is Aviary. This is the photo editing app I use for most of my thumbnails in my videos. This app allows you to crop photos to sharpen photos. This is a Free application for you iPhone, iPad, and even your iPod. Aviary has tons of features, like cropping, focus, blemish, whiten, lighting and much more!
The reason why I chose this app to be the best photo app on iOS is because it’s free, and has tons of features, plus it’s super easy to use! Most iOS photo editors are either not free, or hard to use, and less features.
If you looking for a great photo editing app well then Aviary is the way to go!