Sep 22, 2013 - Indie developer Eric Svitok is proud to introduce iTwerk 1.1 for iOS. It essentially allows the user to view the rate of their twerking. Twerking is a type of dance that is essentially shaking one's behind. The user puts device in their back pocket and twerks for a total of 15 seconds. From the data recieved within those 15 seconds, the app delivers the persons tpm (twerks per minute). Approximate Calories burned per minute and a rating out of 4 stars is also displayed along with their score.