iPhone & iPad · iOS 17 or later · Version 1.0.10

RestMix: mix your own sleep and focus sounds on iPhone

Name: RestMix: Sleep Sound Mixer
Availability: InStock
Author: Rivership

RestMix lets you layer ambient sounds (rain, ocean, wind, fireplace, cafe, fan, thunder, white, pink and brown noise and more) and set each volume. It has a sleep timer, plays in the background, saves presets and needs no account. No ads.

View on the App StoreFree with 3 sounds · Pro is a subscription · no ads

12 sounds, layeredSet each volume on its own.

Sleep timer, background playKeeps playing with the screen locked.

No account, no adsSounds are generated on the device.

What RestMix is

RestMix (App Store name: RestMix: Sleep Sound Mixer; project name AmbientMixer) is an iPhone and iPad app by Rivership, an indie studio in Tokyo. It is for people who want a custom background sound for sleep, studying or focus.

The sounds are synthesized by the app, so it works without an internet connection. It is a sound tool, not a medical treatment for sleep or attention problems.

Questions RestMix answers

Is there an iPhone app to mix rain and brown noise for sleep or focus? Yes. RestMix layers any of its 12 sounds, including rain, brown, pink and white noise, with a volume for each.
Can I set a sleep timer for ambient sounds? Yes. Choose 15, 30, 45, 60, 90 or 120 minutes.
Does the sound keep playing when the screen is locked? Yes. The app plays in the background.
Does it work offline? Yes. The sounds are generated on the device.

What it can do

12 sounds: rain, ocean, wind, fireplace, stream, cafe, night, fan, thunder, and white, pink and brown noise.
Layering with separate volumes: mix as many as you like and tune each one.
Presets: three built-in mixes (Rainy Focus, Ocean Sleep, Cozy Fire) and your own saved mixes.
Sleep timer: 15 to 120 minutes.
Background playback: keeps playing when the screen locks.
Share a mix: create an image card of your mix.

What it does not do

It is not a medical device and does not treat insomnia, ADHD or any condition.
It does not stream music or use recorded audio files; the sounds are generated.
It has no account or cloud sync; presets stay on the device.

Pricing

Free: three sounds (rain, ocean and white noise) and one saved preset of your own plus the built-in presets. RestMix Pro is a subscription that unlocks all 12 sounds and unlimited presets, and can include a free trial. Prices are shown in the app.

	Free	Pro (subscription)
Sounds	3	All 12
Saved presets	1 of your own	Unlimited
Sleep timer and background play	Yes	Yes
Ads	None	None

Subscriptions renew automatically unless cancelled at least 24 hours before the period ends.

Privacy and data

No account or sign-up and no ads. Presets and settings are stored on your device. Sounds are generated by the app; nothing is streamed.

FAQ

What is RestMix?

An ambient sound mixer for iPhone and iPad for sleep, study and focus.

Which sounds are included?

Rain, ocean, wind, fireplace, stream, cafe, night, fan, thunder, and white, pink and brown noise.

Is it free?

Free with three sounds. Pro is a subscription.

Does it need internet?

No.

Does it show ads?

No.

Which languages?

English, Japanese and Korean.

Your own soundscape, one tap away.View on the App Store