Pocket Soundmasker has 11 sounds built-in. Each sound can be played individually or in combination with others.
You can import any sounds you may have and use them alongside the inbuilt sounds. If you choose to purchase Soundmasker, you will receive access to the registered users area where you may download many extra sounds for use with the application. We currently have over 40 extra sounds available for download. This access is unlimited and does not expire.