[p_j_w]

The word "app" has changed in common usage. Most any program you ran on your computer was called an Application way back when, but now it's come to mean... whatever it's supposed to mean now. Whoever wrote the Github site is probably old like me and is using the old vocabulary.

[FpUser]

I am an old fart but I am starting to use "app" for windows executables as this is what many of my clients "understand" better.