Comparison

White Noise vs AOK Sleep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

White Noise

This app offers a variety of algorithmically generated ambient sounds to aid sleep, focus, and relaxation. Users can mix two sounds, set a sleep timer with fade-out, and enjoy a dark mode interface. It's ideal for those struggling with insomnia, needing to soothe babies, or seeking a calming background for meditation.

Highlights
  • 12 algorithmically generated sounds
  • Mix two sounds simultaneously
  • Sleep timer with gradual fade-out
  • Dark mode interface
  • Background audio playback
  • Focus and relaxation aid
Features
Read full description

Sleep sound app with 12 algorithmically-generated sounds. White noise, brown noise, pink noise, fan, rain, ocean, thunder, forest, campfire, stream, heartbeat, and shush. Mix 2 sounds simultaneously. Sleep timer with gradual fade-out. Dark mode interface designed for nightstands. Background audio plays all night. Perfect for insomnia, babies, meditation, focus, and relaxation. SUBSCRIPTION INFO • Deep Sleep Pro Monthly: $3.99/month • Deep Sleep Pro Annual: $29.99/year • Payment is charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless cancelled at least 24 hours before the end of the current period • You can manage and cancel subscriptions in your Account Settings on the App Store Privacy Policy: https://probabilityapps.com/privacy.html Terms of Use: https://probabilityapps.com/terms.html

About

AOK Sleep

Read full description

AOK Sleep is a simple, beautiful white noise and sleep sounds app. No account. No subscription. No bloat — just the sounds you need to fall asleep, stay asleep, and block out the world. **A sound library built for real sleepers.** Choose from noise colors (white, brown, pink, grey, violet), nature, home, and ambient sounds, plus binaural wave tracks and heartbeat sounds — 36 sounds and growing. Every sound loops seamlessly, so there's no jarring restart to pull you out of sleep. **Mix your perfect combination.** Layer up to three sounds together — rain and thunder, fan and white noise, whatever gets you there — with independent volume control for each. Save your favorite combos as Favorites and recall them with one tap. **Make it yours.** Light, Dark, or System theme, plus 12 accent colors — because your sleep sounds app should look the way you want it to. **Set it and forget it.** Built-in sleep timer with any duration or endless playback, so the sound stops on its own or plays all night. **Your data stays on your device.** No account required. No data collection. No ads. AOK Sleep is completely private — everything happens locally on your device. **One-time purchase, not a subscription.** Unlock the full 36-sound library, the mixer, and unlimited timer duration for a single one-time price. No recurring charges, ever. --- Download AOK Sleep and get the rest you actually need. ---

Screenshots

White Noise4 screens
AOK Sleep4 screens

Verdict

The call

The clearest difference is device support: AOK Sleep at 3 against White Noise's 1. AOK Sleep also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. White Noise sells 2 in-app purchases, starting at $3.99 per month and AOK Sleep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 31, 2026.

Scorecard2 real differences · 7 level
White Noise versus AOK Sleep: the parameters behind the verdict, then further details
ParameterWhite NoiseAOK Sleep
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size2 MB334 MB
Age rating4+4+
DeveloperPROBABILITY LLCAOK Labs Limited Liability Company

In-app purchases

2 purchases

White Noise

Subscriptions2
  • Monthly Access$3.991 Month
  • Annual Access$29.991 Year
1 purchases

AOK Sleep

One-time1
  • AOK Sleep Pro$2.99

Questions

Is White Noise free?
White Noise is free to download, with in-app purchases available.
Is AOK Sleep free?
AOK Sleep is free to download, with in-app purchases available.
Do White Noise or AOK Sleep have ads?
Neither White Noise nor AOK Sleep shows ads.
Which is updated more often, White Noise or AOK Sleep?
White Noise ships an update every 2 months, and AOK Sleep every 2 months. Most recently, White Noise was updated on October 31, 2026 and AOK Sleep on October 31, 2026.

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