Phase4 Mobile creates innovative and elegant apps focused on improving quality of life.

Check out our popular free apps:

Get Rain Sounds HQ Rain Sounds HQ
Relax with over 70 high-quality rain sounds recorded in the world’s forests, countryside, and cities.
Get White Noise hQ White Noise HQ
Transform your bedroom, hotel room or office with over 75 high-quality white noise sounds.
Get Soothing Sleep Sounds Soothing Sleep Sounds
Fall asleep fast to a wide range of high-quality sounds with this free version of our Sleep Sounds HQ app.
Get Shusher Shusher
Help your baby sleep better than ever with over 50 high-quality natural sounds and a smart auto-shusher.
Get Tinnitus Aid Tinnitus Aid
Relieve annoying tinnitus symptoms and sample powerful audio filters in our premium Tinnitus HQ app.
Get Sleep Science Sleep Science Alarm Clock
Wake up gently and understand your sleep with this free version of our premium Sleep Science HQ app.
Get Power Nap Tracker Power Nap Tracker
Recharge with the perfect nap. Wake up at just the right moment so you feel fresh and rejuvenated all day.