Crashes often – GPS Stone (GPX Trip Recorder) Review

I like the idea of this app, to record a GPX file of a trip. That file could be useful for traffic accidents or citations. But it crashes after 5-10 miles. I'd rather it record an entire trip, say 500 miles in a day! I suspect it's a compatibility issue. My device is iPhone 4S ios 6.0.1. Please fix, otherwise I'll be forced to write my own GPX recorder and put it on iTunes!
Review by Plausible_Deniability on GPS Stone (GPX Trip Recorder).