Help Minecraft PE won't connect?

Please Help.
On Minecraft PE full. It won't connect with minecraft PE demo. Can you help.

I'm using it with Wi-Fi.

I have an Xperia Play With The Full Minecraft PE. I'm trying to connect to Ipad/IPhone (the Ipad and the IPhone has the demo.

Minecraft PE full Ver.can't connect with Minecraft PE Demo. Even though you can see the server, you can't join if you tried. They both have to be the same app.

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