Liquid Noise - Sleep Sounds

About this app

Pay once, sleep forever. No subscriptions. No accounts. No nonsense. Liquid Noise is the only white noise app you'll ever need. Just six scientifically-proven sounds, a volume slider, and a timer. That's it. What You Get: • White Noise – Equal energy across all frequencies for masking sudden sounds • Pink Noise – Balanced frequency distribution that sounds like gentle rain • Brown Noise – Deep, rumbling tones for profound relaxation • Green Noise – Natural mid-range frequencies like rushing water or ocean waves • Blue Noise – Bright, crisp high frequencies for masking tinnitus and electronic hums • Ocean Wave – Rhythmic surf sounds with natural wave cycles for deep relaxation • One-time purchase of $2.99 – use forever, no recurring fees • 7-day free trial – full access, no credit card required • Sleep timer with fade-out – set 15 minutes to 8 hours or play all night • Background playback – continues when your phone is locked • Works completely offline – no internet required after download • No accounts required – your privacy is protected • No ads – clean, distraction-free experience • Dark interface – easy on your eyes at bedtime Why We're Different: Unlike subscription sleep apps that charge $60-80 per year, Simple Sleep Sounds is a one-time purchase that works forever. We believe you shouldn't have to pay monthly for something as simple as white noise. NO SUBSCRIPTION – Pay $2.99 once, use forever NO COMPLEXITY – Just 6 sounds and a timer, not 300 features you'll never use NO DATA COLLECTION – Your sleep is your business. We don't track you. NO ADS – Clean, distraction-free experience designed for sleep NO ACCOUNTS – Download, open, and sleep. That's it. Perfect For: • Falling asleep faster with consistent background noise • Masking tinnitus with scientifically-proven sound frequencies • Helping babies and children sleep with calming white noise • Blocking neighbor noise, traffic, or roommate sounds • Improving focus during work or study sessions • Creating a consistent sleep environment every night • Masking high-pitched disturbances with blue noise • Enjoying nature-inspired sounds without large audio files How It Works: 1. Download and open the app 2. Tap a sound to start playing immediately 3. Adjust volume and set a timer if desired 4. Lock your phone and sleep The app generates high-quality noise algorithmically in real-time, so you get crystal-clear audio without the large file sizes. All sounds loop seamlessly with no gaps or interruptions. Our Philosophy: We built this app because we were tired of subscription apps that charge monthly for features we never use. Liquid Noise does one thing perfectly: helps you sleep better with scientifically-proven noise generation. No meditation content. No celebrity voices. No social features. Just pure, simple, effective sleep sounds. Try it free for 7 days. If it helps you sleep, pay $2.99 once and use it forever. If not, delete it. Simple as that. Built by people who hate subscriptions, for people who need sleep.

• Seamless AirPlay streaming to speakers and smart devices • Enhanced lock screen and Control Center playback controls • Optimized battery usage for all-night sessions • Expanded compatibility to more devices (iOS 17.5+)

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 19, 2026 · 3:34 PM Free