App Detective
App Detective is a macOS utility that scans installed apps and shows which UI frameworks and GUI technologies they use.
What is App Detective?
App Detective is a native macOS utility for identifying the GUI technologies used by apps installed on your Mac. It helps developers, power users, and curious Mac owners inspect applications and understand whether they are built with frameworks such as SwiftUI, AppKit, Catalyst, Electron, Qt, Flutter, Java, or other desktop stacks. A common use case is comparing how different apps are built, auditing your Applications folder, or learning what technologies are common across your software. The app focuses on analysis and discovery rather than app management, so it is useful when you want a quick technical overview of installed software without digging through each bundle manually. App Detective is published by Tao Xu and fits best in workflows centered on software inspection, development curiosity, and macOS utility tasks.
Key features
- Scan installed macOS apps to identify their GUI technology stack
- Show whether an app uses frameworks such as SwiftUI, AppKit, or Catalyst
- Detect common cross-platform stacks including Electron, Qt, Flutter, and Java
- Inspect applications in your Applications folder without opening each app bundle manually
- Compare how different Mac apps are built for learning or technical reference
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Safe
App Detective is a utility for analyzing installed apps on your Mac, so normal use involves reading application bundle contents and metadata. That kind of read-only access is consistent with its purpose. If you no longer use it, removing the app should only affect your ability to inspect other apps' technology stacks.
Recommendation: Keep App Detective if you want to inspect how Mac apps are built or compare frameworks across your installed software. If you do not use that kind of analysis, you can remove it without affecting the apps it reports on.
Common paths
/Applications/App Detective.app
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