Sleep Sounds - Rain Sounds and Relax Music is an Android app developed by Simple Design Ltd. (Vistra Corporate Services Centre, Wickhams Cay II, Road Town, Tortola, VG1110, British Virgin Islands). Others apps created by Simple Design Ltd. are: Buttocks Workout, Period Calendar, Lose Weight in 30 Days, QR Code Reader and Scanner.

Sleep Sounds - Rain Sounds and Relax Music first became available on 22 Feb 2019. It is estimated that Sleep Sounds - Rain Sounds and Relax Music has been downloaded between 1000000 and 5000000 times from the Play Store.