Turns out if you take a picture of a white space like the wall or white bedsheets the alarm will also turn off. Originally I set my alarm so that I have to take a picture of my bathroom sink in order to turn it off. However one morning in my half-asleep stupor I accidentally took a picture of my bed. It was closeup with nothing else in the picture but a smooth white bedsheet. The alarm turned off!!! Since then Ive tested it many times and its always the same result. I no longer use it. Its too easy to fool the app.
txsci17 about Alarmy Pro - Alarm Clock, v2.66