Insight Timer - Support your meditation practice through a massive community powered app.
Blanket - Improve focus and increase your productivity by listening to different sounds. Or allows you to fall asleep in a noisy environment.
Meditation Assistant - Feature packed meditation session timer and recorder
MyNoise - Custom shaped online noise machines. Many Many generic sounds
Headspace - Meditation made simple. Brilliant things happen in calm minds.
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.