Rain and Brown Noise for Deep Sleep
A low, steady foundation softened by the natural detail of rainfall.
- Brown Noise 65%
- Rain 38%
Slo vs myNoise: Which Sound Generator Fits You? (2026)
| Feature | Slo | myNoise |
|---|---|---|
| Library approach | 151 curated sounds | 300+ soundscapes |
| Browser listening | ✓ | ✓ |
| Adjustable layers | ✓ | ✓ |
| Per-frequency controls | — | ✓ |
| Calibration controls | — | ✓ |
| Evolving soundscapes | Preset-dependent | ✓ |
| iOS access | ✓ | ✓ |
| Android access | ✓ | ✓ |
| Mac download path | ✓ | Website available on desktop |
| Current payment model | Check current store listing | Donation-supported web; app full access via one-time purchase |
Choose Slo if you want a usable mix in under a minute from curated presets and simple layer volumes; choose myNoise if you want to shape a generator’s frequency spectrum with calibration controls across its 300+ evolving soundscapes.
Disclosure: Slo is made by the team publishing this comparison. myNoise facts come from its official website and current Google Play listing, checked July 31, 2026. We have not run a laboratory or long-term user test comparing the products.
The short verdict
Choose Slo if you want a smaller, curated library and a quick layer mixer with ready-made browser presets. Choose myNoise if you want a much larger catalogue, deeper control over the spectral balance of a generator, evolving soundscapes, and time to explore a more technical interface.
Both can build useful ambient backgrounds. The central tradeoff is fast curation versus granular control, not audio quality or health efficacy. Neither product should be treated as a medical intervention.
Slo vs myNoise at a glance
| Decision | Slo | myNoise |
|---|---|---|
| Library | 151 curated sounds in current Slo product source | 300+ soundscapes in the current Android listing |
| Main control | Layer choice and volume | Layer controls plus generator-specific spectral shaping |
| Browser use | Players, mixer, and presets | Full website catalogue and generators |
| Evolution | Depends on the selected sound or preset | Official listing says soundscapes continuously evolve |
| Best for | Getting to a usable mix quickly | Fine-tuning and exploring many generators |
| Main tradeoff | No per-frequency calibration controls | More controls to understand |
| Payment comparison | Check current app-store terms | Donation-supported website; mobile full access offered as a one-time unlock |
We omit exact prices because regional store amounts can change. Check the current checkout screen before deciding.
What Slo offers
Slo’s verified product source describes 151 curated sounds for focus, sleep, and relaxation. In the browser, individual players provide volume and timer controls, the mixer combines adjustable layers, and curated presets offer faster starting points. Download links are available for iOS, Android, and Mac.
The useful distinction is simplicity: choose rain, brown noise, a river, or a fireplace; set the balance; stop adjusting. Slo does not include a verified ten-band equalizer, hearing calibration, or claims of identical features across every app platform.
What myNoise offers
myNoise is maintained by sound engineer Stéphane Pigeon. Its official site describes adjustable soundscapes for focus, relaxation, and sleep, with an ad-free, donation-supported website. Its current Android listing says the app contains 300+ customizable soundscapes, including nature, urban ambience, tonal drones, synthetic noises, and musical environments.
The signature control is deeper than a conventional volume mixer. The White Noise & Co generator exposes frequency-shaped presets—including white, pink, brown, and grey—alongside calibration and animation controls. Other soundscapes let listeners balance component sounds such as waves, wind, or insects. The official mobile listing says soundscapes evolve continuously and full app access is available through a one-time purchase rather than a subscription.
myNoise links to iOS and Android apps from its official website. For desktop listening, the verified route is the website; this article does not claim a separate native Mac app.
The differences that matter
Curated ingredients versus generator depth
Slo exposes recognizable sound layers and keeps the control model consistent. myNoise treats each soundscape more like an instrument, with generator-specific components and, in some cases, frequency controls. If you want to remove a narrow part of a noise spectrum, myNoise is the more relevant first test. If you mainly want rain plus brown noise at two volumes, Slo is quicker.
Library scale
The current figures are 151 sounds for Slo and 300+ soundscapes in myNoise’s Android listing. Those numbers are not perfectly equivalent: a Slo sound is a mixable layer, while a myNoise soundscape can contain multiple adjustable components. Use the numbers as a catalogue signal, not a direct quality score.
Calibration and animation
myNoise’s generator pages expose calibration and animation controls. These are useful for listeners who enjoy shaping a spectrum or keeping a scene moving. Slo’s verified controls focus on choosing and balancing layers. It does not claim hearing calibration.
Browser and app access
Both products work in a browser. Slo also provides iOS, Android, and Mac download paths. myNoise officially links iOS and Android apps, while its website serves desktop browsers. Do not assume that saved states or every control move between versions unless the product explicitly confirms it.
Payment model
myNoise’s website is donation-supported, and its 2026 Android listing says the app is ad-free, has no subscription, and offers full access through a one-time purchase. Slo app prices and entitlements require checking the current store listing. This makes myNoise’s model notably different, but an exact amount would be stale-prone and is not needed to understand the choice.
Which one should you choose?
| Your priority | Better first test | Why |
|---|---|---|
| A usable mix in under a minute | Slo | Consistent layer-and-volume workflow |
| Adjusting frequency bands | myNoise | Generator pages expose spectral controls |
| The broadest catalogue | myNoise | Current listing states 300+ soundscapes |
| Curated focus and sleep presets | Slo | Presets reduce setup decisions |
| Evolving, non-static scenes | myNoise | Continuous evolution is a stated product feature |
| A browser test before installation | Either | Both have verified web listening |
If you are choosing for concentration, run the same 20-minute task in each environment and in silence. Record errors and completed work, not only preference. Our guide to the best sounds for focus gives a repeatable method.
Slo presets
Compare a two-layer sleep mix with a moving focus mix
These demonstrate Slo's simpler control model: recognizable layers, separate volume levels, and no frequency-band setup.
River and Green Noise for Focus
A centered noise bed and flowing water for sustained desk work.
- Green Noise 60%
- River 35%
Frequently asked questions
Is Slo a direct myNoise alternative?
Yes for ambient masking and mixable backgrounds, but not for every control. Slo does not reproduce myNoise’s frequency shaping, calibration, or full generator catalogue.
Which has more sounds?
Slo’s current product source says 151 curated sounds. myNoise’s current Android listing says 300+ soundscapes. The units differ, so the totals should not be treated as a quality ranking.
Does myNoise have a subscription?
Its July 2026 Android listing says the app is ad-free, has no subscription, and offers full access through a one-time purchase. The website is donation-supported. Check the current store for regional terms.
Can I use both in a browser?
Yes. Slo offers browser players, a mixer, and presets. myNoise began as and remains a substantial web catalogue of adjustable generators.
Which is easier for beginners?
Slo has fewer control concepts and ready-made presets. myNoise rewards experimentation but asks the listener to understand more controls. “Easier” depends on whether customization feels useful or burdensome.
Official sources checked July 31, 2026
- myNoise, official website — web access, project ownership, adjustable soundscapes, mobile links, and donation-supported model.
- myNoise, White Noise & Co generator — noise presets, calibration, animation, and browser controls.
- myNoise, official Google Play listing — 300+ soundscapes, continuous evolution, Android access, no-subscription and one-time-unlock description.
- Slo, live browser players, mixer, presets, and current product source — claims checked July 31, 2026.
Related comparisons and 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.
