Liquid Noise
Simple, beautiful sleep sounds for better rest
No subscriptions. No accounts. No data collection. Just peaceful sounds designed to help you sleep.
Liquid Noise is a sleep sound generator designed for one thing: helping you get better rest. Choose from scientifically-backed noise colors or natural ocean waves, set a sleep timer, and drift off peacefully. The app works completely offline and respects your privacy—we don't collect any data about you or your usage.
Features
Six Noise Types
- White Noise - Full frequency spectrum, like radio static
- Pink Noise - Balanced frequencies, natural and smooth
- Brown Noise - Deep low frequencies, like a distant waterfall
- Green Noise - Mid-range focus, ambient and calming
- Blue Noise - High frequencies, crisp and airy
- Ocean Waves - Natural surf sounds from the coast
Flexible Sleep Timer
Choose from preset durations or create your own custom timer:
- • 20 minutes
- • 45 minutes
- • 90 minutes
- • 4 hours
- • All Night (8+ hours)
- • Fade Out (gradual 30-minute fade)
- • Custom duration
Background Playback
Sounds continue playing when your device is locked or the app is in the background. Designed for all-night use with graceful handling of interruptions like phone calls or alarms.
Customizable Experience
Adjust the visual experience to your preferences: show or hide the clock, countdown timer, and animated waveform. Choose from black, animated gradient, or starfield backgrounds. Fully optimized for nighttime viewing with an exclusive dark theme.
Simple, Fair Pricing
One-time purchase. Own it forever.
What You Get:
- 7-day free trial with full access
- All six noise types included
- All current and future features
- No subscriptions or recurring charges
- Family Sharing enabled
Start your free 7-day trial today. No credit card required during trial period.
Frequently Asked Questions
Is this really not a subscription?
Correct! Liquid Noise is a one-time $2.99 purchase. You own it forever with no recurring charges, auto-renewals, or subscription tiers. We believe in simple, transparent pricing.
What happens during the 7-day trial?
The trial starts automatically when you first launch the app—no sign-up or credit card required. You get full access to all features during the trial. If you decide to purchase before the trial ends, the app is yours forever. If not, the app will prompt you to purchase or stop working after the trial expires.
Do I need to create an account?
No! The app works completely offline after the initial download. There's no account creation, no login screens, and no sign-up process. Your purchase is linked to your Apple ID through the App Store.
Does the app collect my data?
Absolutely not. We don't collect any user data—no analytics, no tracking, no telemetry, and no sleep data. Your purchase status is stored locally on your device only. We take your privacy seriously.
Can I use the app on multiple devices?
Yes! Your purchase supports Family Sharing, which means you can share it with up to five family members. If you use multiple devices yourself, just tap "Restore Purchase" in Settings to activate the app on your other devices.
Will the sounds play all night?
Yes! The app is designed for 8+ hour overnight playback. Audio continues when your screen is locked or the app is in the background. It handles interruptions (like phone calls or alarms) gracefully and resumes playing afterward.
What's the difference between the noise types?
Each "color" of noise emphasizes different frequencies:
- • White Noise: Equal energy across all frequencies (like TV static)
- • Pink Noise: Balanced across frequencies (sounds more natural to human ears)
- • Brown Noise: Emphasizes low frequencies (deep, rumbling)
- • Green Noise: Focuses on mid-range frequencies (ambient, nature-like)
- • Blue Noise: Emphasizes high frequencies (crisp, airy)
- • Ocean Waves: Natural recording of surf (rhythmic, organic)
Why is there only a dark theme?
Liquid Noise is designed specifically for nighttime use. A bright light theme would disrupt your sleep preparation and defeat the purpose of the app. The dark theme is optimized to minimize blue light exposure before bed.
What iOS version do I need?
Liquid Noise requires iOS 26.0 or later. The app takes advantage of the latest iOS features for optimal performance and battery efficiency.
Is there Android support?
Currently, Liquid Noise is only available for iOS.
Ready for Better Sleep?
Download Liquid Noise today and start your free 7-day trial. No credit card required.
iPhone • iOS 26.0 or later