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Does Apple allow socket programming? I figure if I am able to send and receive UDP packets (at least over wifi) the possibility is there.

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I believe Minecraft Pocket Edition on iOS utilizes TCP for multiplayer, and I don't suppose Apple would have any reason to block UDP. – liamzebedee Mar 7 '12 at 9:39
-1 No research and off topic. From the FAQ: "General programming questions more likely belong on Stack Overflow instead of here. A good rule of thumb is to ask yourself: Would a professional game developer give me a better/different/more specific answer to this question than other programmers?" – doppelgreener Mar 7 '12 at 11:32
up vote 2 down vote accepted

Yes you can do it, why didn't you even bother to search?

This post implies you can, and this one links a page @apple which also implies you can.

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I don't know about socket programming but you could have a server through which the 2 devices can communicate and exchange data.

Or if you don't have a server then you can use BUMP for your cross platform game.

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