5/5 rating based on 244 reviews. Read all reviews for Intensity Interval Timer for iPhone.
Intensity Interval Timer is free iOS app published by Atlantia Software LLC
ANPBINGU
I just really love the app because I'm able to create my own workouts with the specific time intervals + the rest periods + I can add my whole song collection to the workout!!
mwyner
I'm not sure why they bothered releasing an Apple Watch app for this when it's pretty useless. There's no haptics or feedback, and the app doesn't work from the watch without the phone attached to it.
ynotexhale
Sometimes that's all you need is easy and simple. This is a no thrills, but effective app to use for interval training.
MomHouston
I am a P.E. teacher and I use this for the fitness portion of class 2-3 days a week. The kids have a love/hate relationship with it. They can see the increase in strength and cardiovascular endurance. They are getting ready for fitness testing. Thank you for a good product. Now we need shorter HIIT workouts for out minimum days!