1st time app has messed up iPod

Disappointed that app only lets you alternate longer intervals with short 60 sec max break. Not good if you want to do a steady state build-up longer than 60 sec (eg 4 min endurance) with a race period of anywhere from 2 min to something longer. Can only flip to 60 sec max from other period. But that doesnt matter, this app froze my touch. I have tons of apps & lots of storage & memory left on 32 gb touch. Screen froze. Holding down top button did nothing. Deleted app.

Ollyappleseed about ITGO - Interval Trainer GO - The Ultimate Gym and Outdoor Timer for Cardio Health, Fitness and Well Being