I LOVE this app! I use it in my workout everyday. Its simple to set up, it never quits unexpectedly, and with it Ive been able to create all the workouts that I need to read my fitness goals. Only downside is I cant link it to Spotify. Other than that, this is the best $2 or $3 Ive ever spent on exercise "equipment"!
Pest dude about Interval Timer Pro, v3.0.3