Way 1: Delete Applications on Mac with App Uninstaller Cannot Delete Some Apps on Mac? What to Do.Way 4: Completely Uninstall Application on Mac and Leftover Files (Recommended).NOTE: Leftover Files and Bundling Programs.Way 3: Uninstall Purchased Apps using Launchpad.Way 2: Uninstall Applications on Mac by Emptying Trash.Way 1: Delete Applications on Mac with App Uninstaller.