Moondawn: Sleep Cycle Alarm

Smart & gentle wake calculator

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Tap once tonight, wake up clear-headed tomorrow. Moondawn times your alarm to the end of a sleep cycle: the moment you're already drifting up toward awake. Wake up between sleep cycles, not in the middle of one. Sleep moves in roughly 90-minute cycles: light sleep, deep sleep, REM, then a moment where you're almost awake. An alarm that fires during deep sleep leaves you groggy for hours. An alarm that lands between cycles lets you start the day clear-headed. It's why 7 and a half hours can feel better than 8. Moondawn does one thing well: it aims your alarm at that moment. GOING TO BED NOW Tell Moondawn you're turning in and it lays out your wake-up options, one for every full cycle, from a quick power nap to a full night. Tap one and the alarm is set. WAKE AT A SET TIME Have to be up by 7:00? Spin the wheel and Moondawn counts backward, showing exactly when to fall asleep so the alarm still lands on a cycle boundary, down to the minute. WIND-DOWN REMINDERS Pick the bedtime you're aiming for and Moondawn nudges you before lights-out, so you actually get the night you planned. REAL ALARMS THAT RING Built on Apple's AlarmKit, Moondawn rings full-screen through Silent mode and Focus, even if the app is closed. No "leave the app open overnight" tricks. No missed mornings. SOUNDS YOU'LL WAKE TO, NOT DREAD Eleven original wake tones, each written to rise gently instead of jolt you awake, plus a silent vibrate-only option. Hear any of them before you choose. MADE FOR THE DARK A calm night sky, glass surfaces, a slowly breathing moon, and a light tap of haptics as everything responds. No streaks, no guilt, no feed. Open it, tap once, sleep. Clocks follow your 12- or 24-hour setting automatically. MOONDAWN+ One purchase, yours forever. No subscription. Unlocks unlimited simultaneous alarms, four night skies with matching app icons, and tuning for your own cycle length and time to fall asleep. PRIVATE BY DESIGN Moondawn collects nothing. No accounts, no tracking, no analytics. Nothing ever leaves your phone. Sleep is timing. Moondawn gets it right.

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Moonwake is now Moondawn: the same sleep-cycle alarm, with a big refresh. • Set an alarm in one tap: long-press the icon or ask Siri to "sleep 5 cycles," and Moondawn counts from now to the end of a whole cycle. • Find it fast: search "alarm" in Spotlight and Moondawn is right there. • A calmer, clearer walkthrough of how sleep cycles work. • A refreshed look throughout, including the alarms screen and Moondawn+. Sleep is timing. Thanks for waking up with us.

Version 1.1

The developer, Arthur Pimentel, 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
    Arthur Pimentel
    Size
    25.5 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    English
    Age Rating
    9+
    In-App Purchases
    Yes
    Copyright
    © 2026 Arthur Machado
  • Privacy Policy

    • More by Arthur Pimentel

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