can we make an ios app using unity 3D with xcode4? - ios5

Is there any SDK available for Unity 3D for making an ios game .I am new to this unity 3D,I have found many things while searching as download unity development tool then we can make apps which can run on both Windows and Mac.
My doubts are
1.How we can make an unity 3D app using xcode?
2.Can we use objective c code?(I got informations like we can only use javascript/c# for mobile app development in unity 3D)
Please help me...
thanks in Advance

http://unity3d.com/unity/licenses

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Best way to make my HoloLens 2 app run on smartphones

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Copying and adapting the current scene made for Hololens by replacing Hololens exclusive features with ARCore features.
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MRTK supports a wide range of platforms, including mobile devices such as iOS and Android. You can use the MRTK API directly on your Android device instead of ARcore. For how to configure MRTK for iOS and Android please refer to this link:Configure MRTK for iOS and Android [Experimental]

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Right now, I think there is not a way to do it within Unity. This is what I have found so far (please, correct me if I'm wrong):
The most popular VR plugins compatible with Unity for both Android and iPhone are Durovis Dive SDK and Google Cardboard SDK.
I have read that most Android phones are compatible with those VR plugins. My experience is that just a few are compatible. Durovis Dive SDK seems to be the most compatible one nowadays. If the Android phone has not gyroscope and the game has the Google Cardboard SDK plugin, the game won't load or crash. If the Android phone has not gyroscope, the game will load but the image will be still when we move the phone.
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could you try WEBVR
YouTube Tutorial: Demo WebVR Unity
Although it has some defects, but it can serve you for basic applications. I was testing it with 360 videos, this was very heavy for the platform.
You may try WebXR. But you can't add both SDK at the same time.

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For use delegate and event in Unity, visit Prime31's Unity Tip video.
Check out Niklas's free unity iOS plugin.
http://forum.unity3d.com/threads/122681-Free-facebook-Plugin-for-Unity-iOS
It doesn't work out of the box anymore, but with a few changes and updates you can get it working.
If you already have xCode experience then hopefully the extra work should be trivial since the Facebook SDK docs are pretty good.

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Cocos2D is popular, and pretty simple/well thought out.
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I can't believe no one has given this answer:
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