Slo vs Rep+

Slo is a brown noise and sleep sounds app for iPhone, iPad, and Mac, with 150+ curated sounds for sleep, focus, and relaxation. Play deep brown noise on its own, or mix it with rain, waves, and fan sounds — each layer with its own volume — and set a sleep timer that stops playback automatically. KEY FEATURES • Brown noise – deep, low-frequency rumble many people choose for focus and sleep • White, pink & green noise – broadband noise colors for masking background sound • Binaural beats & frequencies – binaural beats, solfeggio tones (396–963 Hz, including 432 Hz and 528 Hz) and Schumann resonance tones • Rain sounds – steady rainfall and distant thunderstorms • Waves & water – ocean waves, river, waterfall • Fan sounds – ceiling fan, table fan, airplane cabin • Nature & ambience – forest, birds, wind, fireplace, campfire, train • Sound mixing – layer sounds, each with its own volume control • Sleep timer – playback stops on its own after you drift off MADE FOR • Light sleepers who use steady sound to mask traffic, neighbors, or a snoring partner • Students and deep workers who keep brown noise or fan noise running for hours • People who wind down to binaural beats, solfeggio tones, or steady frequencies • People who use sound masking at night to make tinnitus ringing less noticeable • Anyone building a consistent wind-down routine — same mix, same timer, every night WHY SLO? A focused sound machine, not a content platform: 150+ curated sounds, a mixer with per-layer volume, and a sleep timer. No voices, no playlists — steady sound that sits in the background while you sleep, study, or work. Slo is free to download and try; the full sound library is a premium purchase inside the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://meltedbutter.co/terms/noise.html Privacy Policy: https://meltedbutter.co/privacy/noise.html FREQUENTLY ASKED QUESTIONS What is the best app for brown noise? Slo is built around brown noise: play it on its own, or layer it under rain or a fan sound with a separate volume for each layer, and set a timer so it stops on its own. Does brown noise help you sleep? Brown noise doesn't treat anything — what it does is mask. A steady low-frequency sound covers unpredictable noise like traffic, doors, and snoring, which is why many light sleepers keep it running at night. Can I use Slo for tinnitus? Steady broadband sounds like brown and pink noise can help mask tinnitus ringing — many people set a low volume that makes the ringing less noticeable at night. Slo is a sound player, not a treatment; persistent or one-sided tinnitus needs a medical assessment. What are solfeggio frequencies and binaural beats? Slo includes solfeggio tones (396–963 Hz, with 432 Hz and 528 Hz), Schumann resonance tones, and binaural beats — steady tones many people play for meditation and winding down. Try one with headphones and keep it if you like it. What's the difference between brown, white, pink and green noise? White noise spreads energy evenly across all frequencies (like static). Pink noise shifts energy toward lower frequencies (like steady rain). Green noise centers on the middle of the spectrum. Brown noise goes deepest — a low rumble like a waterfall or strong wind. Slo includes all of them, so try each and keep what suits you. Can I use it for studying and focus? Yes. Many users prefer brown noise or fan noise as a steady background for studying and deep work, because a constant sound gives the ear nothing new to chase. Can I mix multiple sounds together? Yes. Layer brown noise with rain, add thunder over a fan, and set each sound's volume separately to build your own soundscape. Does Slo have a sleep timer? Yes. Set the timer when you press play and playback stops automatically. Is Slo free? Slo is free to download and try; the full 150+ sound library is a premium purchase inside the app.

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