The best.
This app is the best one of this kind. I can customize all of my workouts. Not only that, but the app speaks which exercise is next and also counts down (thats most important to me). Its like having a trainer tell me the exercises. Although she sounds like Siri. Maybe a different voice would pump me up a little more. The only thing I wish it had was the ability to skip songs from my playlist. Because it doesnt allow that, I have to play my music from my Apple Music. I still have to back out of this app if I need to skip though. If youre fine with the inability to skip songs, download this app. You wont find a better one. Others have said its pricey but when you are using it everyday, it beats a monthly gym membership.
Triple Triangles about
Seconds Pro Interval Timer, v3.1