White Noise vs AOK Sleep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 12 algorithmically generated sounds
- Mix two sounds simultaneously
- Sleep timer with gradual fade-out
- Dark mode interface
- Background audio playback
- Focus and relaxation aid
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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
AOK Sleep
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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
Verdict
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
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.
Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 31, 2026.
| Parameter | White Noise | AOK Sleep |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 334 MB |
| Age rating | 4+ | 4+ |
| Developer | PROBABILITY LLC | AOK Labs Limited Liability Company |
In-app purchases
White Noise
- Monthly Access$3.991 Month
- Annual Access$29.991 Year
AOK Sleep
- AOK Sleep Pro$2.99









