I got a chance to play with the app last night for about 15 min or so, and it is pretty nice. Very well thought out and useful, but it is still got a few issues.
1) I have trouble connecting to the unit. It sometime takes 5-6 tries (or more) before they will handshake. (Communication error mostly).
2) There is a button to arm the device, which is great, but I do not see where I can create a new Series. Each set of shots is stored in a Series. For example, if I am testing 4 different load, I put each one in a different Series. Each series has multiple shots in them. There are times when I take a break to load a mag or something, and I want to go back to the same series and continue shooting, or I might want to create a new series for a new load. It *appears* that when I arm the device, it is adding whichever series I have highlighted. I have not actually tested this at the range to see how this works in a real setting, but this confuses me at this point.
3) A minor detail, but I don't see how to save the data to my phone. I will probably just pull the SD card from the Labradar and import into my computer anyway, but I thought it was an interesting omission.
Other than those things, I am really impressed. Some of them (especially #2 above) are probably just me not understanding how to use the app yet.