I am presently playing around with this useful app. First...I recommend it. Second...nobody release a perfect first version. Why does changing the program reset the volume to default? I would prefer it stayed at the level I set before changing program. It has three buttons but I would like four. Mute is nice. Changing program is essential. Resetting the program to Automatic is very good (please modify to resetting program while leaving volume untouched), and the forth would be resetting volume (not affecting program). A dream would be an equalizer on one program to customize temporarily before running to your audioprothesist.