FAIL Button Widget Soundboard is an Android app developed by Mammuth Applications. It is a free lifestyle app that provides a fun way to react to everyday situations where you or your friends fail at something. The app features a big red button and a homescreen widget that plays a fail sound when pressed.

In addition to the fail sound, the app also offers a soundboard with more than 15 funny sounds to choose from. The app also features button animation, editable playing speed, and other fun features. The Pro-version of the app offers additional features such as no advertising, smooth speed control, the ability to set sounds as a ringtone, instant volume changing, and enable vibration with smooth vibration duration, among others.

The app is created by a 17-year-old pupil who coded it in his spare freetime. The app requires Internet permission for the Google Advertise system, but the developer assures that no sensitive or personal information is stored, analyzed, given to third parties, or compromised in any way.

Overall, FAIL Button Widget Soundboard is a fun and entertaining app that offers a unique way to react to everyday fails.