Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.

Sleep Sounds Free - Sleep Sounds Free is a popular mobile application that is designed to help you sleep quickly, beat insomnia, and easily ignore a partner/spouse who snores a lot and causes difficulty for you.

Noizio - Feeling that the noise of the big city is too much for you to bear?

Anybody Out There: Dead City - A stranger's fate lies in your hand in this game of SMS exchange.

zenmix.io - Ambient background sound generator

Calm Sleep - Calm Sleep is a feature-rich mobile application used by thousands of people to listen to relaxing sounds and get a good night’s sleep.