Frequently asked questions
How Noizim works, what's free, and how sound can help you sleep, focus and stay calm.
White noise is a steady blend of all audible frequencies at equal intensity. It masks sudden sounds so your brain has less to latch onto, making it easier to fall asleep, stay asleep, and concentrate.
They differ in which frequencies carry the most energy. White is even and bright; pink softens the highs for a warm, rain-like sound; brown is deep and grounding; gray is tuned to feel balanced; blue and violet are brighter; green sits in the natural mid-range. See noise colors explained.
Brown, pink and rain are the most popular for their gentle warmth; white masks sudden sounds most strongly. Try them free in Noizim and keep the one you drift off to fastest.
No - people use it for focus and deep work, studying, calming anxiety, soothing babies, easing tinnitus, and staying calm before stressful moments. It's for calm and focus any time.
Yes. Noizim is free to download and start today, $0, with no account. Core noise colors and background playback cost nothing; the full library (every sound, the drift-off timer, unlimited mixes, favorites and folders) is unlocked inside the app.
Yes. Sound keeps playing when you lock your phone or switch apps, and the drift-off timer fades it out gently.
Yes. Noizim generates its noise on your device, so it works with no internet - ideal for flights and travel.
Yes. Layer sounds, balance each one, and save your blend as a set. Favorites and folders keep your go-to sounds organized.
Many parents use it. Keep the volume moderate and the device at a safe distance from the crib, and don't run it louder than needed. See our safety guide.
Steady sound can make tinnitus less noticeable, help many people focus, and calm a busy mind. Noizim is a wellness tool, not a medical device or treatment - for persistent symptoms, talk to a professional.
Noizim is on iOS today. Android is coming - join the waitlist and we'll email you at launch.
No. Noizim is free to download and start using today, with no account and nothing to enter. You can enjoy it free, and everything else lives inside the app whenever you want more.
Ready to quiet the noise?
Free to start, no account needed. Every core sound works offline.