Live-generated audio · for focus & relaxation

A focus engine that lives entirely on your phone.

AuraFocus4 synthesizes binaural beats, adaptive noise, nature sounds and a breathing guide in real time. No account to create, no internet connection to use, no data that ever leaves your device — the privacy is architectural, not a setting.

Deep Work · 40Hz Gamma Flow · Alpha/Beta Calm · Theta

01 — Why it exists

Sound that never changes stops being heard.

Most focus apps loop the same few minutes of audio. After a while a loop turns into furniture and you stop noticing it. AuraFocus4 never loops. Every waveform is calculated live, sample by sample, so there's no seam for your attention to learn and tune out.

It's made for anyone who wants steadier focus or an easier wind-down: students, remote workers, people who like structured time. Many people with ADHD find external structure and steady sound helpful. AuraFocus4 is a wellness tool, not a treatment.

02 — Inside the engine

A few simple ideas, one continuous signal.

Real-time PCM float synthesis at 48kHz stereo — nothing pre-recorded, nothing streamed.

Binaural tones

Generative binaural beats

Slightly different tones in each ear at a calculated offset — 40Hz for Deep Work, 25Hz for Flow, 14Hz for Calm. Best with stereo headphones.

Focus shield

Parametric atmosphere

Brown, pink or white noise with a colour slider from deep rumble to brighter texture, to soften whatever's around you. Add live-generated rain, ocean or wind.

Stereo movement

Neural Flow

The atmosphere drifts slowly between your ears at a speed you choose — a gentle moving texture that many people find calming.

Anti-habituation

The Wobble LFO

A slow internal oscillator subtly shifts the volume roughly every 30 seconds — just enough to stay unpredictable.

Guided breathing

Breathing guide

An animated circle with four patterns — Box, 4-7-8, Calm and Energizing — like the orb above this text.

Make it yours

Pomodoro, presets, progress

Focus rounds with short breaks, your own saved presets, and a private streak counter that never leaves your phone.

03 — Privacy, verified

Offline isn't a claim here. It's a build decision.

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No account or sign-inThere's nothing to create, verify, or lose access to.
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No internet connection requiredThe audio engine runs entirely on-device, screen on or off.
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No analytics, ads, or trackersNothing about your sessions is ever collected — there's no pipe for it to travel through.
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Nothing about your sessions leaves your phoneYour settings and focus history stay on the device. We never receive them.

From the app's own Android manifest

android.permission.INTERNET — absent Analytics / ads SDK — absent android.permission.FOREGROUND_SERVICE — audio only android.permission.POST_NOTIFICATIONS — session status

04 — Under the hood

Built to run quietly in the background.

48kHz stereo · PCM float 1–120 min focus timer Android 8.0+ Foreground service playback Neural Flow drift Pomodoro mode Zero network permissions

05 — Good to know

A wellness tool, with a few sensible cautions.

AuraFocus4 is for focus and relaxation. It is not a medical device and does not diagnose, treat or cure any condition. Use stereo headphones at a comfortable volume. If you have epilepsy or a seizure disorder, a heart or hearing condition, or are pregnant, ask your doctor before using rhythmic audio, and stop if you feel unwell.