Freezes every time.

I had this app for a while with an iPhone 5 and I could never determine if it was really all that accurate but at least it seemed to be in the ballpark and would count my time and distance. Now Im trying to use it with a 5s and on my last 5 runs the app has glitched out each time and has stopped counting mid run. When I open the app I see it struggling to catch up and big chunks of numbers in mileage start skipping upwards. Ive given this app so many chances. Restarted my phone, closed all other apps, etc. now Im deleting it because it fails to serve its single simple purpose. Feels like a rip off to have paid for this.

Heavy Boxes about Pedometer Step Counter PRO by Runtastic