GoDeadOn App. Tried it? Using it?

I have the Dr. Dial in app, but the one you downloaded sounds much easier since it just scans the time slip. I may have to buy that one when I make it back to the track this year. I’m pretty anal about record keeping and data collection so any way to make collecting data and recording runs easier has my attention.
The app is free as far as I can tell. If you want it to predict your et's you have to pay for it.