I like to record business calls so I can go back and review. I tried this app on my Note7 and was happy that it worked both with my hard wired headset and my Bluetooth headset (Mpow Wolverine). To get the recording to work with the Bluetooth headset, I had to change the Bluetooth Audio Source settings to MIC. After changing that, it worked for both headsets. I'll be purchasing the pro version of this app!