Rain, fan and brown noise that never seams

Sound made live on your phone, so there is no loop to hear. It plays through the night.

The Listen screen playing a mix called Desk, with brown noise and rain drawn as two stacked bands

Your mix, drawn as the Fold

Each layer is a band edged with its own spectrum, taken from the same filter maths the audio uses. Drag a band up or down for volume and sideways for tone. Nothing moves unless you touch it.

Dragging the fan band on the Fold, with the fan's volume and tone sliders below — Drag a band for volume and tone

The sleep timer set to 6 hours with a 14 minute fade — A sleep timer with a long, slow fade

Rainfold's playback controls on the lock screen — Controls on the lock screen

Free on Google Play, unlock everything once for USD 2.99

Free

White, pink, brown and green noise, a fan and rain
Mixes of two layers, each with its own volume and tone
Three saved mixes
A sleep timer with a long, slow fade
Background playback with lock-screen controls
A widget that resumes your last mix
Export and import of your mixes as a file

The one purchase adds

Up to six layers in a mix
Unlimited named mixes
Storm, wind, surf, stream, fire, air conditioner and train
Crickets and cafe murmur
Evolving night, so intensity drifts slowly through the hours
A Quick Settings tile

Google Play shows the price in your own currency. The unlock belongs to the Google account that bought it and comes back on a reinstall or a new phone.

No ads, no subscription, no account. Works fully offline.

Internet permission: None
Data collected: None
Ads: None
Sign-in: None

Mixes you keep

Name a mix like Desk or Night shift and it is one tap away. Export your mixes to a file and import them on your next phone.

The Mixes screen in light mode with Desk, Night shift and Bus route