I've just reinstalled this app with hopes that it would function properly, but it is without question the most undependable app I've ever used. It CONSTANTLY locks up, crashes and is unresponsive to my selections. It does a very good job of improving my photos, but every task is a major ordeal to complete. The most surprising thing about this app is when it functions without getting stuck or being unresponsive. Beware! This app is a dud. They better fix it soon!