HappyShutter is the solution to all your mobile picture-taking problems. Just leave your device somewhere or hold it in your hand, smile at the camera and you are done! Pictures are taken automatically when all the people in front of the camera are smiling.
This app will make sure that everybody will be ready, without rushing for the timer, without missing anybody on the image! If you change your mind, you can always take a manual picture, or set a timer from the same application, so you will never miss a shot!
Usually this app retails for $1.99/£1.49 but today you can pick it up for free/download here.