6.99 version works good
Free version is ok if you just want to find out if you snore, how long, and how it sounds. It gives you samples of the night. If you want more insights and record the whole night the 6.99 version works good. Turn off the fans. It records many other sounds as "snores" like my dogs shaking, airplanes, and me moving around the bed.
GisselleBS about
SnoreLab : Record Your Snoring, v3.7.3