Do we need iphone to test an iphone app before submitting it in apple market?

I have a macbook and other tools to develop the app. I just need to need to know how the developed app performs in iphone.

The emulator that comes with XCode works pretty well, but I personally would not release a product that I haven't tested on the actual device that it will run on. That just seems like a great way to find usability issues and possible bugs that the emulator doesn't catch.

So, you don't technically *need* it, but it's unwise to not use one.

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