When it talks to photo apps for Android, you may think of some popular apps like Camera 360 (which bring "Art in Your Hand"), Flickr(which provides "the best way to share your life in photos"), Instagram which figure out "a beautiful way to share your world"）or the Pudding Camera (which "take Professional Photos with Your Smartphone!"). Neither they are a simple photo sharing apps or they are a photo apps with limited editing features.
