It's pretty good, everything that you'd want from a flag detecting apps. Something I wish you would add though was the ability to detect flags from states, provinces, etc. You wouldn't have to add every, just some big ones like PRC, USA, UK, stuff like that. The second thing that I wish you would add would be the ability to delete flags from you collection in case it detected incorrectly. Another thing about the collection is that I wish the flag would only be collected if it was above 80% sure.