Very Glitchy

This app seems great for the person who has just begun running but is motivated to progress. It has everything you want in an app: a catchy display, an easy music player, voice prompting, and a calendar to chart progress. The problem, and for me it is major one, is the the app is glitchy. It routinely freezes, and there seems to be no rhyme or reason to why the app starts going haywire. Ive reinstalled it many times, but after having the app for three months, Ive only successfully used it twice. The glitches are so bad, I wanted to give this app one star, but the it has so much potential, I feel it deserves a second. I am using an iPhone 5c on iOS 8.3.

Running couch potato about Run Training Pro