Did work great. After I upgraded IOS (9.3.5) it no longer works at all

Wonder if you snore? SnoreLab is a sure fire way to answer the question and a great way to monitor the effectiveness of the multitude of anti-snoring options. For instance, for me a chin strap was a disaster turning me from a loud to an epic snorer. But it might work for you.

HikeAbout about SnoreLab : Record Your Snoring, v3.7.3