I use several apps installed using
.dmg files downloaded from other sources rather than direct from the App Store.
When I try to remove them through Launchpad, these apps will not show the X button to allow me to delete them.
On the right: Mac App Store app; On the left: app from external source.
Is there any canonical safety way to remove them?
If I put them in Trash, will they disappear from my Mac without any related directories? How can I completely remove an app?