 Thumbs up, five stars, a variety of seven-minute workouts for different parts of the body. And the seven-minute workout is a real calorie burner. Different workouts for the arms, the chest, the legs, the buttocks area. And you don't even need Wi-Fi to use the app, too. A lot of seven-minute workouts. And what's so fabulous, you do not need any equipment. It's a free app called 7SEVEN.com.