I’m not entirely sure how WPS factors into app development (usually it’s something that happens at the system level) but, regardless, I don’t think you’re going to be able to make much headway here. iOS has very limited Wi-Fi APIs available to app developers. For a summary of what is available, see QA1942 iOS Wi-Fi Management APIs.
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Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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