Guides

Storage and apps on a Mac: with built-in tools first, then with Searoom.

• What is “System Data” on a Mac and how to shrink it
  What “System Data” in your Mac's storage settings means, which items it usually holds, and how to make it smaller by hand without breaking anything.
• How to uninstall Mac apps properly, leftovers included
  Remove Mac apps completely: move the app to the Trash, find its leftovers in the Library, check background items. Step by step, no extra app needed.
• MacUpdater is discontinued: how to keep your Mac apps updated
  MacUpdater was discontinued on 1 January 2026, its update server runs until 31 December 2026. How to keep Mac apps updated: built-in, App Store, Homebrew.
• Xcode takes too much space: what you can remove
  DerivedData, archives, device support, simulators: what Xcode stores on your Mac, what comes back on its own, and how to clean it up with built-in tools.
• Local Time Machine snapshots explained
  Why Time Machine keeps snapshots on your Mac, how long they stay, how to list and delete them in Terminal, and why macOS does not tell their size.
• A CleanMyMac alternative without a subscription: what to look for
  Looking for a Mac cleaner without a subscription? How to recognise an honest cleanup app, what you can do by hand, and which tools exist for which job.