ArcGIS Survey123 allows you to quickly create, share and analyze surveys. With this app, you can collect data via web or mobile devices, even without an Internet connection.
To get started, download ArcGIS Survey123. Then follow our step-by-step guide to connect your Reach receiver to the app via TCP.
I recently returned from fieldwork, and, using the RS2, the Android + Bluetooth or iOS + TCP connection with Survey123 worked flawlessly. The Bluetooth is preferable, but its nice to have the option with iOS devices. As far as I can tell, we still can’t use iOS/TCP with ESRI Field Maps yet(?).