This is a utility app for use with CHC navigation x20i series GNSS receivers. This allows you to do RTK data collection while this app can run in the background. You can view all the data received from the connected x20i GNSS unit, monitor data quality and set audible alarms to make sure data meets the standards you set.
Compatibility:
Requires iOS 9.0 or later. Compatible with iPhone and iPad.
Disclaimer:
"Continued use of CHC Tools running in the background and connected to the GPS/GNSS receiver can dramatically decrease the battery life of your Apple device."