I want to make an iPod game :3

[cingchris]

In order to make iOS apps you have to have an iOS Developer account to begin with, this is because the iOS source code isn't released to the public.
https://developer.apple.com/programs/ios/
You can buy one here, but they cost 99$ a year.

As for the apps themselves I would assume they are programmed using C, C++, and Objective-C because that's what the iOS code is programmed in, so you might wanna learn those programming languages.

Really, I suggest making an Android app, because that won't cost you a cent. The source code for Android is released to the public, so anyone can program apps for it, if you do that though learn the Java programming language, as most Android apps are written in a custom version of that.