Brain.fm - Music designed for the brain to enhance focus, relaxation, meditation, naps and sleep within 10 - 15 minutes of use.
MyNoise - Custom shaped online noise machines. Many Many generic sounds
Calm - Calm.com can help you reduce stress and increase calm.
Calm Radio - Calm Radio is a music streaming alternative that offers calming music. Listen to classical and relaxation music for work and sleep, online jazz music with nature sounds, meditation and world music available on our Calm Radio app.
Medito - 100% Free Meditation App that will improve your Mental wellbeing with the help of Guided Meditations, Breathing Exercises, Mindfulness Practices, Relaxing Sounds, and more.
Rainy Mood - Rainy Mood is the world's most popular rain simulator. Sleep, study, and relax with the sound of rain.