How to made simple app

Question

Apps

Answer 1

Who will mention language

Answer 2

Give

Answer 3

Application software (app for short) is a program or group of programs designed for end users. Applications may be bundled with the computer and its system software or published separately, and may be coded as proprietary, open-source or university projects.

If you make such thing👆 then it will known as app.

See my project once maybe it will help you to understand:

https://code.sololearn.com/WC73MEy7AHEI/?ref=app