Thanks to jrincayc for the links. We've had GammaPix apps on Android for the past year and iOS for several months. Glad to see that INL is working on applications now, too. We also have demos with state police, first responders, mass transit systems, and sporting events ongoing and scheduled for June. Also look for new app releases (free and paid on Andriod and iOS) as well as a new free Android app called GammaAlert that runs in the background and provides continuous crowdsourced radiation monitoring. If you can't tell, I'm a GammaPix developer :)

GammaPix does all the image processing on the user's own phone. (We don't want the privacy issues or the bandwidth cost!)