Do I need to buy the app for the iPad even if I have one on the iPhone already? please help? thanx?

No, in most cases, you will not have to buy new apps for your iPad if you already own them for your iPhone. All iPhone apps work on the iPad. That's the simple answer.

Now here is the more complicated answer: Apps come in three flavors... iPhone specific, iPad specific, and hybrid. IPad specific apps will only run on the iPad and will not even install onto your iPhone. IPhone specific apps were designed for the form factor of the iPhone and the iPod Touch and will only run at the resolution on the iPad, though there is a "2X" button that will stretch it to fit the iPad.

Hybrid apps are designed to work on both platforms and function differently on each platform (Apple's Remote app is a great example... on the iPad, the screen can show more, so it does and it offers even more control than the version installed on the iPhone). Except in certain cases, most new apps seem to be hybrids. Many of the older apps are still iPhone specific in design, but slowly they are being updated and become hybrid.

There are some apps (both free and the have a price) that require you have separate apps (Scrabble is a great example of this); when this happens, it will usually install both onto your iPad, but only the iPhone specific to your iPhone.

IPad and IPhone are both using the App Store system for shopping. If you log in with your original apple store account it should recognize you already have bought the app before giving it for free.

When iPad was released around early last year, there were many questions raised both software and hardware wise. One of the most common concerns of the users was, they want to know if iPhone apps can also run on iPad. Fortunately, Apple has been very ingenious to consider this "problem" right before the people can say something about it.

Yes, you can definitely use your iPhone apps on your iPad. There's no need to buy or download same apps in your iPhone for your iPad. Another most common question raised was, if these iPhone apps are used as iPad apps, will these apps appear in a small window or can be viewed with a large screen.

These two things can actually happen. I mean, you can use your apps in a smaller window, or you can view them with full screen. You don't have to worry if these apps will look "pixelated".

Apple made sure that this won't happen. You can always use your apps in your iDevices. Source(s): http://www.tuaw.com/2010/01/27/iphone-apps-will-run-on-the-ipad/ http://www.readwriteweb.com/archives/whats_a_universal_ipad_app_and_how_do_you_use_it.php.

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