Runtastic knows that you'll be sitting on your ass for hours during Google I/O, watching the conference and gorging on all the news, so it decided to release a new app to... taunt you? Or motivate you to get back in shape once I/O is over? Whatever the purpose, Leg Workout Trainer is now available on the Play Store.

Leg Workout Trainer joins the previously released Butt Trainer in bringing a series of muscle-focused (or group of muscles-focused) exercises to your phone in video form, with step-by-step instructions and photos.

Read More