0.6.7 worked perfectly
0.7.6 used to crash mid run most of the times.
Then zapstore stopped working so I missed all the updates until 1.9.5 which is what I'm using now.

I'm going to update to 1.9.9
Basically, I start a run, the distance stays at 0, and then eventually the workout stops itself or the app shuts down. Not sure. I be running not looking at my phone.