Snapshot takes a picture with your camera in the fastest possible way! You just need to press the app icon and the timer will start ticking. You'll have two seconds to aim to your target and your cellphone will save the image in the sd card, inside the "snapshotapp" folder. This way your picture will be hidden and nobody will know you've just taken a picture. To retrieve a picture you just need to navigate to the folder (if your phone doesn't allows you to search through the disc structure you can download a program to do so, like ES File Explorer, which is the one I used in the second screen capture) and you'll get access to all the pictures taken.