Brown Noise: Sleep & Focus

🎧 Brown Noise — soft rumble for sleep and focus

Looking for brown noise without huge rain audio packs? Brown Noise builds brown, pink, and white noise mathematically in real time, so the app stays light. Pick a noise type, set volume, optional sleep timer — play offline.

🔊 How it works
1️⃣ Open the app
2️⃣ Choose Brown, Pink, or White
3️⃣ Set volume (and optional sleep timer)
4️⃣ Tap Play — leave it running while you rest or focus

⚠️ Best with headphones or a quiet room. Background play needs a native install (not Expo Go). This is a sound helper, not medical treatment for ADHD or sleep disorders.

🛠 Key features
🟤 Brown noise (deep low rumble)
🩷 Pink noise (softer balanced hiss)
⬜ White noise (classic full-spectrum mask)
🔊 Volume control
⏱ Sleep timer (15 / 30 / 60 / 90 min)
⚙️ English and Russian
🌙 Light / dark / Auto
📴 Core job works offline

🏠 Perfect for
✔ Falling asleep with a steady low rumble
✔ Focus / reading / ADHD-friendly ambient mask
✔ Travel or nights when you want continuous noise without big downloads
✔ Tiny APK without bundled nature loops

⚠️ Important notes
Does NOT diagnose or treat ADHD, insomnia, or any medical condition
Does NOT download rain or nature sound libraries
Does NOT require an account or cloud library
Audio quality depends on your speaker / headphones

🔐 Privacy first
🔒 No accounts
🔒 Noise generated on-device — preferences stay local

📱 Brown Noise — light math noise for restful nights and deep work