I only use this app to control my 3 programs and increase or decrease the volume. Choosing the program works great, but I have one problem and one suggestion related to the volume control. The problem is that the app doesnt know what the volume setting is currently on my hearing aids. If I open the battery door over night, my hearing aids reset back to medium volume, but the app doesnt know that and still shows the volume that I last set using the app from the day before. The app should be able to know what the volume current settings are! One really needed improvement would be for the volume slider bar display tick marks AND to show a numerical value for the volume (1 to 100 or something similar would be great!) Lastly, I hate that you cant have and attachment like headphones connected (cable or bluetooth) and use this app at the same time. Fix these problems and Id give it a FIVE!