I'd get AppDelete and use it every time you want to delete an App. It deletes all of the app, works great!
AppZapper, AppCleaner, CleanApp, TrashMe, and similar apps do not do a thorough job of removing all files/folders related to deleted apps. I tested several of these, using Skype as the app to be removed. Of 17 items to be removed:
AppZapper missed 13 items
AppCleaner missed 11 items
AppDelete missed 8 items
Hazel missed 9 items
I also tested AppTrap, CleanMyMac and a few others, but don't recall how many items they missed. All left files/folders behind. In most cases, they remove .plist files and a few others, but leave behind much larger files and folders. (you will find a discussion of these tests in the thread linked in my last post)
One app that I would
not recommend, based on the number of complaints that have been posted in this forum and elsewhere, is CleanMyMac. As an example:
CleanMyMac cleaned too much