It's a very cool program - I just got it a few days ago on my iPhone to use for POTA etc. this summer - it's nicely done, I gotta say. Dave W7UUU [my own opinion, nothing to do with QRZ]
For those that don't know, here's the synopsis from the G-Play page: "HAMRS is a simple amateur radio logger, with templates tailored to portable activities like Parks on the Air, Field Day, and more. You can tab quickly through fields as you make contacts, see operator QTH information with an internet connection, and export your ADI file easily." Cheers, David / N2PQW