Last Window Quits automatically closes applications in macOS when their last window is closed. You can configure auto-start, exceptions, and a timeout.
New macOS users might find the application closing behavior unusual. When you close an app’s last window, the app itself may continue running in the background, taking up system resources.
Of course, you can always close such apps manually, but it’s much easier to use a utility that does this for you—such as Last Window Quits.
Features and Settings
As you can see in the screenshots above, the app has a simple set of options:
• Last Window Quits: Enables auto-start and allows you to temporarily disable the app.
• Blacklist: Lets you add apps that should be ignored by the utility.
• Menubar: Adds a Last Window Quits icon to the menu bar for quick access to settings.
• Advanced: Allows you to set a timeout before closing apps—useful if you prefer a short delay instead of immediate closure.