Serenity: White Noise

Sleep timer, rain, fan, ocean

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Drift off to rain, ocean, or fan sound that never loops or repeats — because nothing here is a recording. Just press play and let go. Serenity plays white noise for sleeping, and it does it without a single audio file. Every texture is synthesized in real time from noise and filters. That means there is no loop point to notice at three in the morning, no download, and the whole app is about a megabyte. SIX TEXTURES Static White, Pink Noise, Deep Rain, Ocean Waves, Night Wind, and Fan / Air. Each one retints the whole screen, so you can tell them apart in the dark. A SLEEP TIMER THAT MEANS IT Tap a preset from 15 minutes to 4 hours, or drag the ring for anything in between. Turn on fade-out and the last minute eases to silence instead of stopping dead. IT KEEPS PLAYING Lock the phone and the sound continues. The Lock Screen shows what is left and pauses without unlocking. BUILT FOR A DARK ROOM Dark only, deliberately. No bright splash, no autoplay video, no paywall that could appear while you are falling asleep. NO ACCOUNT, NO ADS, NO TRACKING No sign-in. No analytics. No network calls of any kind. The privacy label says Data Not Collected because that is literally true.

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The developer, Daniel Li, 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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Daniel Li
    Size
    • 2.2 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.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Daniel Li
  • Privacy Policy

    • More by Daniel Li