Your XAirMonitorMix app is not only excellent it is indispensable for our band. Our five members use your app to control our wireless IEMs while playing live via individual mono mix buss’ connection to our Behringer XR18 mixer. We run your app on a mic stand mounted iPad running iOS13 in tandem with the OnSong app. Assuming you are familiar with OnSong, if the XAirMonitorMix app was coded to work with the split screen app feature of iOS13, if would allow us display the mixer app and our set lists in OnSong on the iPad screen at the same time during live play. It would minimize having to manually move between apps on the iPad.