For sleep, focus, and calm.
When the nap has to happen in the car, Rainbow Noise plays the right color of noise through CarPlay.
$14.99, once. No subscription.
- One purchase, $14.99.
- No subscription, ever.
- Collects nothing.
Seven colors of noise. The right one for every moment.
White for masking. Red and Pink for sleep. Green and Blue for focus. Violet for staying awake. Grey for long sessions.
White: for masking
Every frequency at equal weight. For masking traffic, neighbors, or the office hum.
Pink: for sleep
Warm and steady. Good for falling asleep, napping, or sleeping all night.
Red: for overnight sleep
The lowest, heaviest end of the rainbow. The one people leave on through the night.
Green: for calm focus
The middle of the rainbow. Good for reading, writing, or thinking something through.
Blue: for sharp focus
The bright, awake half of the rainbow. Good for careful reading, writing, and detail work.
Violet: for staying awake
The sharpest end of the rainbow. Good for road trips, big projects, or late-day energy.
Grey: for long sessions
Even across your whole hearing range. The kind you forget is on.
All seven colors on CarPlay.
Pick the color from the dash, or ask Siri without taking your hands off the wheel. For the nap that has to happen in the car.
The reverse alarm.
It sets a stop time. The noise fades to silence at the moment you choose, without waking anyone up.
Pink and Red are the sleep colors.
Built for iPhone and Mac.
Liquid Glass design throughout. Native CarPlay. Home Screen and Lock Screen widgets. Siri shortcuts for every color.
On the Mac, it lives in the menu bar. Play, pause, and switch colors without leaving your work.
Requires iOS 26 or macOS 26.
Hi, I’m Christopher.
On a family trip a while back, I forgot our noise machine at home. I figured an app could fill in, but everything I tried that night either sounded bad or wanted a subscription. So I built the app I was looking for. It sounds right, and you pay for it once.
Now it helps my daughter sleep in the car on long trips, too.
I build and run Rainbow Noise myself. Support email comes straight to me: [email protected]. More about me at cmoel.com.
What’s not here.
- No subscription.
- No auto-billing trial.
- No ads.
- No data brokers.
- No social features.
- No engagement streaks.
- No AI.
Just noise, in colors, and the right one for every moment.
White is free. Six more in Plus.
The other six colors and the reverse alarm are in Plus. One purchase covers iPhone and Mac, every update, and the whole family through Family Sharing.
$14.99
once, not monthly