Perfect app for almost any interval training protocol

I really like this app, its easy to use, very flexible, and works flawlessly. I wanted to do a variety of different interval training, -from 10-1 run/walk, to LT running test, to a tempo run, but,still be able to play my running tunes. This app will do just that - and simply interrupt the music to advise you on the interval and/or status. It also has a number of built in running programs such as the c25k. I like that you can create both long (up to 1 hr) and short intervals, and also have more than a simple 1:1 type interval selection.

broken_ankle about Interval Run, v1.5.1