'Noise Recorder' is very useful for measuring the volume (in decibels) of your environment.
Optionally record noises that are louder than a set threshold (if the noise level drops, the recording will automatically stop so there are no 'empty' recordings).
'Noise Recorder' can be used to record how loud and often you snore during the night, and if you struggle to breathe (sleep apnea).
Find recordings by date and replay them using the built-in player.
Both light and dark themes are available.