[pvinis]

Yes but "app" is usually what you run on your phone, "application" is what you run on your computer, no?

[aepiepaey]

Back before the popularization of smart phones, it was not that uncommon to use "apps" as an abbreviation for [desktop] applications.

Of course, "apps" is usually used to refer to [mobile] applications today, but it's still used in the other sense.