White Noise: Deep Sleep Timer
Fan, Rain, Brown Sound Machine
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
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
Ratings & Reviews
New look, smarter sleep timer experience, and performance improvements.
The developer, PROBABILITY LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- PROBABILITY LLC
- Size
- 1.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 9 more
- English, Arabic, Dutch, French, German, Japanese, Korean, Portuguese, Spanish, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Annual Access $29.99
- Monthly Access $3.99
- Copyright
- © 2026 PROBABILITY LLC