Based in Portland, Oregon, Phase4 Mobile creates innovative and elegant apps focused on improving quality of life.


sleepsoundshq.com Sleep Sounds HQ
Instantly relax your overactive mind, and fall asleep fast with over 600 soothing sounds from around the world.
rainsoundsapp.com Rain Sounds HQ
Relax with over 70 high-quality rain sounds recorded in the world’s forests, countryside, and cities.
whitenoisehqapp.com White Noise HQ
Transform your bedroom, baby’s room, hotel room, or office with over 75 high-quality white noise sounds.
Get Baby Sleep Sounds HQ+ Baby Sleep Sounds HQ
Help your baby sleep better than ever with over 50 high-quality natural sounds and a smart auto-shusher.
Get Tinnitus HQ Tinnitus HQ
Relieve annoying tinnitus symptoms with advanced frequency filters and over 500 natural sounds.
sleepsciencealarmclock.com Sleep Science HQ
Wake up gently to over 750 sounds, understand your sleep, and record your dreams.
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.