the.com/launcher

means A launcher is the home-screen app that organizes your other apps and lets you tap one to open it.

from Traces to 'launch,' from Old French 'lancier' (to throw or hurl, from Latin 'lanceare,' to wield a lance). The word kept its sense of sending something forth — ships, rockets, careers — and by the mid-20th century, software borrowed it for the act of starting a program. 'Launcher' followed naturally: the thing that does the launching. In computing, especially Android's customizable home screens, it narrowed to mean the interface layer that holds your icons and fires up apps on tap.