When you simply Trash apps, you remove only the .app-file. However, many applications generate service data that is stored in other places. CleanMyMac 3 is able to find and remove these files related to the app, freeing up more space on your hard drive.
In order to help you remember to use CleanMyMac 3 to uninstall apps, you can go to the CleanMyMac 3 > Preferences menu, open CleanMyMac 3 Menu panel and check the Offer to correctly uninstall applications box. After doing this, every time you move any application to the Trash, CleanMyMac 3 will prompt for correct uninstallation.
Clean, optimize, and maintain your Mac with the all-new CleanMyMac 3. It scans every inch of your system, removes gigabytes of junk in just two clicks, and monitors the health of your Mac.