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


rainsoundsapp.com Rain Sounds HQ
Relax with over 70 high-quality rain sounds from around the world. Listen to showers and rolling thunderstorms in the world’s forests, countryside, and cities.
sleepsoundshq.com Sleep Sounds HQ
Instantly relax your overactive mind, and fall asleep fast with over 600 soothing sounds from around the world. Sleep deeply and wake up fresh and energized.
sleepsciencealarmclock.com Sleep Science HQ
Wake up gently to over 750 sounds, understand your sleep, and record your dreams. Sleep Science helps you track, analyze and improve your sleep.
powernaphq.com Power Nap HQ
Recharge with the perfect nap. Power Nap HQ monitors your nap and wakes you up at just the right moment so you feel fresh and rejuvenated all day.
Tinnitus HQ
Coming soon! Relieve annoying tinnitus symptoms. Mask ringing in the ears with advanced frequency filters and 500+ natural sounds.
Binaural Beats HQ
Coming soon! Discover new levels of relaxation, meditation, and focus with 40 pure tones, 500+ high-quality natural sounds, and customizable filters.
whitenoisehqapp.com.com White Noise HQ
Transform your bedroom, hotel room or office with over 75 white noise sounds individually selected for their noise-blocking qualities.