Don't Laugh Challenge tool

This app enables you to finish try-not-to-laugh-challenge in a single device.
Load videos from your album then play them, meanwhile the front camera will detect if you laugh or not and display your face on top of video. If you did hold laughing, you get score increase, and score decrease otherwise. You will get 100 score if you hold your laugh all the way to the end of videos.
So prepare several funny videos, ask your friend over and finish the challenges!