*Updated review* If you have an older version of the app I STRONGLY recommend you keep the older version. While the new version adds some features, this "update" puts many more previously free sounds & features behind a pay wall! I've had the much older version for years and absolutely love it. Great sleeping sound and binaural tone mix. Perfect to relax into sleep and drown out the snoring of my husband! I love being able to layer and save my own custom mix.