What's That Smell is a free Android game developed by WowWee Group Ltd and falls under the category of trivia games. This party game that stinks comes with 48 Mystery Whiff Cards, 4 Stank Cards, 4 resealable scent-barrier bags, 6 cardholders, Whiff Strips, a scorepad and instructions. The game can be played by 2-6 players aged 14 years and above. The What’s That Smell companion app can be downloaded for free and offers additional features such as tracking during the game, earning bonus points, and recording the Whiff Of Shame.

The game is an interesting and hilarious guessing game that uses different scents to test players' sense of smell. The app tracks the game and allows players to earn extra points by comparing their guesses with others or submitting their own answers. The Whiff Of Shame recording feature is a hilarious addition that adds to the overall fun of the game. It is important to note that the game contains strong smells that may not be suitable for those with delicate noses.