Set Deal Alert Click to activate an email alert when this deal is updated White Noise App $0 at Amazon 4 Comments 121 days ago by TheKenChan in Software HOTNESS UNHOT Today only. Amazon has the White Noise App (Android 1.6+) for $0 downloaded. Features over 40 perfectly looped sounds to help you relax or sleep and multiple alarms that slowly fade in. Retail: $2