Application will work same as on iphone

Dear Developer Forum,
I am new in mobile development I have started it from Iphone.
I have make one application and it is working fine on simulator.
So on device it will also work fine without any exception?
I have heard from my friends that if application fine on simulator
but their 100 % chances that on device it will give some exceptions.
Thanks

The simulator is not as up to date as the iPhone. The Simulator doesn't have a camera. The Simulator lets you put things on the file system that the iPhone does not allow.
Even if the app is perfect on the simulator, you must do 100% regression test on a real device. And this includes checking for memory leaks. You might have leaks on the iPhone even if you do not on the simulator.

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    Dear Developer Forum,
    I am new in mobile development I have started it from Iphone.
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    I have heard from my friends that if application fine on simulator
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    Thanks

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