iOS Utility

DriftNoise

Procedural sleep and focus sounds, on device

A paid iPhone utility for offline procedural sleep and focus sounds. White, pink, brown, fan, rain, and slow-surf noise are generated locally with no bundled recording library, no streaming, and no account. Tune volume, warmth, and movement, then let the sleep timer fade it out.

In the box

What actually ships

→Procedural audio (white, pink, brown, fan, rain, surf) generated on device
→Mixer controls for volume, warmth, and movement
→Sleep timer with gentle fade-out
→Background audio that survives screen lock
→Local presets and settings, no account or backend
→No bundled recording library — fully procedural, smaller footprint
→AVAudioEngine architecture with custom signal generators
→SwiftUI mixer with smooth real-time control
→Honors iOS Silent switch and audio session interruptions
→Complete Swift source code (post-purchase)

The stack

Boring, by design

Nothing exotic. Nothing I wouldn't ship to production on a Friday.

SwiftSwiftUIiOS 17+AVAudioEngineBackground Audio

Numbers

integrations

shipped features

110+

files

14kb

gz bundle