Disk Space Monitor & Alerts

Warns before your disk is full

Only for Mac

Free · In‑App Purchases

Mac

Know days ahead when your Mac will run out of space. When space suddenly disappears, the alert tells you what grew – and a click opens the folder. Your Mac running out of space usually comes as a surprise: an update won't install, a file won't save, an app stops syncing. Disk Space Monitor warns you before that happens – and tells you why. KNOW AHEAD OF TIME - "Full in about 12 days": a forecast based on how your free space changed over the last days - A notification when your Mac will be full within a week - Warnings at two levels you choose, e.g. below 15% and below 5% ALWAYS IN VIEW - Free space in the menu bar: as a percentage, in GB, used or free – or just an icon - The last 7 days as a chart - Includes purgeable space that macOS frees by itself when needed FIND OUT WHY (PRO) - An alert when space disappears suddenly, e.g. 10 GB within an hour - The alert names what grew, e.g. "Biggest increase: Xcode device support (+5.5 GB)". Click it to open that folder - "Where's my space?" measures every folder in your home folder and shows the places known to grow large: caches, downloads, the Trash, Xcode archives, simulators and more - Open any folder to see what's inside, largest first, and move what you don't need to the Trash PRIVATE BY DESIGN - The app has no internet access: no analytics, no account, no tracking - Nothing is deleted behind your back. Items only go to the Trash when you say so - Full Disk Access is optional. Without it, protected folders are simply left out FAIR PRICING Free: menu bar display, forecast, warnings and chart. Pro: a one-time purchase, no subscription. Unlocks the sudden-drop alert with its cause and "Where's my space?". Family Sharing is supported.

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The developer, PATRICIA SAUER, 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

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    Accessibility

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    Information

    Seller
    PATRICIA SAUER
    Size
    2.3 MB
    Category
    Utilities
    Compatibility
    Requires macOS 14.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    Languages
    English and 26 more
    • English, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Patricia Sauer
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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