Rain and Brown Noise for Deep Sleep
A low, steady foundation softened by the natural detail of rainfall.
- Brown Noise 65%
- Rain 38%
Best White Noise Apps in 2026: 6 Picks Compared
Disclosure: Slo is made by the team behind this guide. We checked official product and support pages on July 31, 2026. We did not conduct hands-on or clinical testing.
Slo is a white noise app for iPhone, Android and Mac whose free browser players at slonoise.com let you hear the sound before installing anything, and in its mixer white noise works as a base you can soften with rain or another steady layer. White Noise by TMSOFT offers the most traditional noise-machine feature set; BetterSleep adds a large sleep library; Noisli is built around browser work sessions; Dark Noise suits Apple shortcuts and widgets; and Apple’s Background Sounds handles basic playback without another app.
Quick comparison
| Pick | Best for | Verified platforms | Mixing | Current cost framing |
|---|---|---|---|---|
| Slo | Simple manual layers | iOS, Android, Mac; browser tools | Individual layer volumes | Check the current store |
| White Noise by TMSOFT | Traditional noise-machine controls | iPhone/iPad, Android, Mac, Windows and more | Mix Pad, recording and playlists | Free Lite; one-time Full and Pro |
| BetterSleep | Sounds plus sleep content | iOS, Android | Multi-sound mixer | Free download; optional plans |
| Noisli | Desktop browser work sessions | Web; iOS and Android apps listed | 16 sounds on Free, 28 on Pro | Free daily limit; paid Pro |
| Dark Noise | Apple widgets and shortcuts | iPhone, iPad, Mac | Custom mixes | Check the App Store |
| Apple Background Sounds | Built-in single-sound playback | iPhone, iPad, Mac | No layer mixer | Included in supported software |
We favored apps that document white or colored noise, make playback easy to control, and explain their current platform and access model. We did not rank by unverifiable “best sound quality,” ratings or sleep outcomes.
1. Slo: best for straightforward sound layering
Slo’s library covers noise colors and nature audio for sleep, focus and relaxation. Its browser players have volume and timer controls, and its mixer gives each layer an individual volume. Download routes cover iOS, Android and Mac.
Best for: Someone who wants white noise as a base, then adds rain or another steady layer.
Tradeoff: The app’s current pricing and platform entitlements must be checked in the relevant store.
2. White Noise by TMSOFT: best classic noise-machine app
TMSOFT documents 50 bundled sounds, a Mix Pad, timers and alarms, recording, playlists, local playback and a companion community-sound Market. Its product table covers a free Lite edition and one-time Full and Pro purchases.
Best for: People who want alarms, offline stock sounds or their own looped recordings in one app family.
Tradeoff: Lite, Full and Pro differ. Check whether standard- or high-definition stock sounds and generator tools matter to you.
3. BetterSleep: best broader sleep toolkit
BetterSleep’s current support material describes more than 500 sounds and melodies in its mixer, plus SleepTales, meditations, tracking, a recorder, timers and bedtime reminders. It is available on iOS and Android and offers limited no-cost access alongside paid plans.
Best for: Someone who wants stories, guided content or tracking around the sound mixer.
Tradeoff: The larger interface and subscription choices may be unnecessary if you only need one noise track.
4. Noisli: best desktop browser companion
Noisli lists mixable ambient sounds, Playlists, Favorites, a work-session timer and a distraction-free Markdown editor. Its current web Free plan has 16 sounds and 1.5 hours of daily streaming; Pro has 28 sounds and unlimited streaming. Noisli lists iOS and Android apps but notes that all web features are intended for modern desktop browsers.
Best for: Work sessions where sound, timer and writing tools live in one tab.
Tradeoff: Check the mobile listing separately if phone features matter.
5. Dark Noise: best Apple-native controls
Dark Noise’s App Store listing includes 50 sounds, custom mixes, widgets, a mini player, a fade-out timer, keyboard shortcuts and Mac menu-bar support. Its documented mix editor provides separate volume sliders.
Best for: Apple users who want quick controls outside the main app window.
Tradeoff: It isn’t a cross-platform pick for Android households.
6. Apple Background Sounds: best no-install option
Apple’s built-in feature provides ambient soundscapes on iPhone, iPad and Mac, plus related equalizer and timer settings on supported versions. It is the shortest route from device settings to a steady noise.
Best for: Basic single-sound playback on Apple hardware.
Tradeoff: It lacks multi-layer mixes, large catalogs and dedicated preset management.
Compare layered noise
Hear what a mixer adds
These presets use other noise colors, but the same controls show how a steady noise layer can sit under rain or water.
River and Green Noise for Focus
A centered noise bed and flowing water for sustained desk work.
- Green Noise 60%
- River 35%
How to choose
Choose the smallest product that covers your real use:
- For one steady sound, use a basic player or the operating system feature.
- For changing rooms or distractions, a mixer gives you more control over the texture.
- For stories, meditation or tracking, compare a wider sleep app.
- For work sessions, timer and desktop access may matter more than a huge sound count.
White noise sounds brighter than pink or brown noise. Compare them at similar comfortable levels; louder is not a fairer test. Read the guide to noise colors if the labels are unfamiliar.
Frequently asked questions
What is the best white noise app?
Slo fits manual layering, TMSOFT fits a classic sound-machine workflow, BetterSleep fits a larger sleep toolkit, Noisli fits browser work, Dark Noise fits Apple system controls, and Background Sounds fits basic built-in playback.
Is a free white noise app enough?
Often, yes. TMSOFT’s Lite app and Apple Background Sounds cover basic playback. A paid app becomes relevant when you need a larger library, no ads, specific mixing tools or content beyond sound. See the free white noise app comparison.
Does white noise improve sleep?
It can mask uneven environmental sound, but an app cannot guarantee better sleep. Keep playback comfortable and compare it with silence. If sleep problems persist, seek qualified medical advice.
Sources checked July 31, 2026
- TMSOFT White Noise product and plans
- BetterSleep current feature overview and getting-started guide
- Noisli features, plans and apps
- Dark Noise App Store listing and mix documentation
- Apple Background Sounds support
- Slo product-facts ledger and website player/mixer source reviewed July 31, 2026
Related guides
Explore more sounds in Slo
Stack two or three sounds, keep the blend, and let the timer stop it. Slo, on iOS, Android and Mac.
