What language is used to create applications?

Question

Example of Language: Html,Css,Js,Ruby,C#,C++,among others.

Answer 1

Pc apps: c++, java, phyton, c, c#, etc;
Android apps: java, xml kotlin, swift (for ios)
Apple products: swift, objetive-c, etc;
Web apps: HTML, CSS, javascript, PHP, sql, and frameworks like rails, flask, etc

Answer 2

Pls