Is it safe to delete App containers?
The private folder a sandboxed app, such as most apps from the App Store, uses as its own home for data, settings and caches.
Review first
It's your own data, or hard to recreate. Decide item by item.
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What it is
macOS gives each sandboxed app and app extension its own container, named after its bundle ID. Inside is the app's own Library, with its data, settings and caches, and sometimes documents you've saved in the app. Deleting an app doesn't always remove its container, so containers from apps you no longer use can stay behind.
If it's removed
Removing a container erases the app's data and settings, including anything you saved only inside the app, and resets it to a first launch.
What to do instead
Manage this data in the app itself, or use the app's uninstaller if it has one. If you've already deleted the app, check that nothing in its container is still needed before moving it to the Trash in Finder.
The free analyzer finds it and explains it, with these steps. The app doesn't remove it for you.
Sources
- developer.apple.com/library/archive/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/MacOSXDirectories/MacOSXDirectories.html
- support.apple.com/en-us/102610
Last checked on 26 Sep 2026. Every entry is written and checked by hand; the app and the command-line tool use the same words.