It weirds me out that people say “apps” for anything except iOS or Mac programs, because their application bundles have a “.app” extension inherited from NeXTstep.
Windows programs are exes. Linux (as if anyone uses Linux) are bins or binaries. Web pages that do something are CGI or DHTML. None of those have application bundles, a coherent structure for binary and support files.
And until the iPhone got popular, only the nerdiest of Mac nerds ever said “app”. But most people can’t remember their language changing, because they have no introspection.