Alongside

Ambient Sound Mixer

Champ includes an ambient sound mixer where you layer nature, weather and noise sources at independent volumes, save the mix, and leave it playing in the background — including on the lock screen.

Layered, not a single loop

Rain over distant thunder over a low hum, each at its own level. Save the combination and it is one tap next time.

Keeps playing when you leave the app

Background playback with lock-screen controls, so it survives switching apps or putting the phone down.

Champ is free on iPhone — three shielded apps, thirty-second resets, no card needed.

Get Champ — free

Questions about sounds

Can sounds play while the screen is off?

Yes — background audio with lock-screen controls.

Can I mix more than one sound?

Yes, that is the point of the mixer. Each layer has its own volume, and mixes can be saved.

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