White noise app
A white noise app for better sleep and a calmer audio environment
Calma is a beautifully simple white noise app that helps you create a softer, more controlled sound environment for sleep, relaxation and everyday calm. Whether you are searching for the best sound to go to sleep to or the best noise for studying, use Calma to support bedtime routines, reduce distracting noise and build a more peaceful atmosphere around you.
Mix noise colors and nature
Layer white, pink or brown noise with rain and nature sounds, then adjust each sound to build a personal mix.
Works offline
Play and mix sounds without an internet connection on iOS and Android, including while travelling or using airplane mode.
No required subscription
Start with the free tier. Premium features use an optional one-time lifetime unlock instead of a monthly or annual plan.
App preview
See the calming experience inside Calma
Guides & Knowledge
Learn more about white noise
White Noise for Sleep
Discover how white noise can help create a stable bedtime environment and improve your rest.
Noise Colors Explained
Explore the differences between white, pink, brown, and green noise to find your ideal sound.
Best Free White Noise Apps Compared
See how Calma compares to other white noise apps in features, sound quality, and value.
Rain Sounds vs White Noise
Which is better for your sleep: organic rain sounds or constant white noise?
FAQ
White noise app FAQ
What is the best free white noise app?
Calma offers a free tier for mixing white noise with nature sounds, works offline, and does not require a monthly or annual subscription. An optional one-time unlock adds premium features.
Does white noise help you sleep?
Yes. White noise acts as an acoustic blanket that masks sudden background noises like traffic or dogs barking, helping your brain relax and stay in deep sleep.
How to use a white noise app for studying?
Try a quiet, steady layer of white or brown noise and adjust it so it masks distractions without becoming distracting itself. Individual responses vary.
Is white noise safe for babies?
For a baby, keep sound low, place the device away from the crib, and ask a pediatric or hearing professional for guidance appropriate to your child.
White noise vs brown noise — which is better for sleep?
White noise is better at masking high-pitched sounds like alarms, voices, or barking dogs. Brown noise has a deeper, rumbling quality (like distant thunder) that many adults find more soothing for falling asleep. With Calma, you can mix both together to get the best of both worlds.
Can I use a white noise app instead of a sound machine?
Absolutely. Modern white noise apps like Calma offer the same (or better) sound quality as dedicated sound machines, plus the ability to mix custom soundscapes, set sleep timers, and work offline. You also save money since Calma is free.
Try Calma for sleep and everyday calm
Download Calma on Google Play and create a calmer sound environment with white noise and personalized soundscapes.
