B4X FEED UDID - I am missing something somewhere

[practicalsoft]

I watched the video -

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up until find UDID at which point it appears to show a screen with an Apple device and talks about opening Safari on the iphone. I have no Apple device. As I understand it I am supposed to be able to develop without one. I have joined The developer program and am sitting at the screen
Certificates, Identifiers & Profiles
I have paid for the hosted builder service and entered my id as shown in the video but have no udid and have no idea where to go from here.

Thanks for your help.

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