A free app for Android, by Wienel.

Do you like challenges? Do you like games? Try this game for a few minutes and see how long you can control your laughter.

The rules are simple. You must not laugh, and you must not smile. If you do, you will lose a life.

The game begins when you turn your camera on. The app will track your face and use the latest face detection technology to detect if you are smiling or not.

If you are not smiling, the game is over. The app will try to distract you with different jokes, short videos, and funny animated GIFs from Giphy.