I got this app to test how well it works, but it greatly disappointed me. All of its run by computers and cannot give me a straight answer, I am pretty well educated on snakes and so I sent a good picture of a northern water snake and they only said that there's a 20% chance that's it's one, there was a 14% chance that it was a cottonmouth that isn't even found in New Jersey. This app wouldn't help people or snakes for that matter, if someone sees that it might be a venomous snake they'll most likely kill it, there are much better apps then this in the app store. I also sent a picture of a 5 lined skink to see if the computer can see if something isn't a snake but it gave me a 41% that it's a ringneck, it didn't even give me that high a percentage with the picture that was clearly a snake. Would not recommend