Used this app twice now. First run went perfectly and updated to Pro to be able to see my data as I continued training. Today, it was a disaster. If I clicked my phone off, it paused my workout without telling me. Which it didnt do the first time I used it. Today I literally had to keep my phone active the entire time. And it didnt record any of my data for my run. Not distance, not speeds, not anything. Which is what I paid extra for. Very frustrated and hoping this was a one-time fluke.