Apps and Libs
Applications are precompiled ready to use Windows programs, without the need of AutoHotkey. And in contrast Libraries are functions and frameworks for other coders.
License
My philosophy is to share every program for free. All my projects on this site are open source too.
AutoHotkey
AutoHotkey is a simplefied programming language and environment. In fact, its just an interpreter for ahk scripts. The intended features are originally for automating Windows, but it can do more than just clicks and start programs.