Duplicate files · Where it looks and what it skips
Does Storage Studio find duplicate folders or duplicate apps?
Short answer: No. Duplicates compares individual files, not whole folders, and never looks inside app bundles. Identical files in two folders still appear as sets one by one. For unneeded apps, use the Apps window to review and uninstall them.
No. The duplicate finder compares individual files. It doesn't compare whole folders, and it doesn't look inside app bundles or other packages. If two folders hold the same files, those files show up as duplicate sets one by one, so you can still clear the extra copies.
For apps — for example an old installer copy of an app sitting in Downloads alongside the installed one — use the Apps window, which lists your installed apps and can uninstall the ones you don't need. See Apps.