Love the design interface and voice
The 7 minute workout can be found in a number of apps. What keeps me going back to this one (yes, I actually use it regularly - it just works for keeping me in shape!) are the cool icons, the utter elegant simplicity of the UX, and that awesome British voice announcing the exercises and telling me I did a good job! Did they borrow her from Sworkit?
ZazaPeel about
7 Minute Workout App, v3.1.3