Cost: Free, with $ 1 in-app purchase to remove ads and maintain aspect ratio
Sometimes an app is so simple, but works so well, it’s hard to imagine how you would get along without it. For me, one of those is Crop by Green Mango Systems.
Whether it’s focusing on the content of a screen-captured Instagram post or creating a quick thumbnail for an avatar, there are many occasions when you’ll want to remove the bulk of an image or rotate it on the fly. You simply select the image, use the eight points of the image canvas to determine the size you want, and you can keep finessing things until you hit “Save.” And unlike the crop option within the iOS photo roll, Crop saves your creation as a new file, so you don’t loose the original.