[astura]

>Write a "Hello World" app on the iPhone that for a certain driver logging in shows all of his trips taken in the last simulation, the average rating that he got, and the total fares he collected during those trips.

That's not "Hello World" app, a "Hello World" app prints "Hello World." The purpose of a "Hello World" app is to demonstrate you've setup the environment correctly, nothing more.

Words and terms have meaning.

[EForEndeavour]

If I didn't know better, I'd interpret the question as a (pretty good) joke.

[diminoten]

It's a "Hello World" app for your system, the most basic app that can run on your platform.