Can you use a push-button WPS Wi-Fi setup with the iPhone/iPad?
Many routers have a button on the front to pair devices over WiFi, without typing in long access codes. Do the iPhone and iPad work with WPS push-button setup?
Everyone who has said "No" is correct. No Apple devices support WPS even to this day.
But those folks saying Apple didn't/doesn't support WPS because of it's insecurity are wrong. We didn't like WPS because we didn't like the user experience, so much so that we actually invented and patented our own way of doing WPS.
I never liked the whole button pushing thing and I fought vehemently against static PINs being printed on devices when I was representing Apple at the Wi-Fi Alliance.
My UX model was that any device could solicit to join a network and the device or devices registered with the access point as remote registrars would be notified of any solicitation to join. So in practice, if a device wanted to join my network, I'd get notified in real time on my computer or mobile device. Upon receiving that notification, I could deny or allow the device to join. I could deny for now or deny forever. If I allowed, I could simply allow them, the same way the push button does, or I could require a one time PIN (rather than a static PIN) to be entered on the joining device. The One Time PIN could be generated by me or by the access point itself and sent to me to give out of band to the person whose device wanted to join.
I thought it a more elegant UX than running around pushing buttons or having to look on the bottom of an access point for a sticker than had a static PIN printed on it.
I left Apple before I had a chance to try to push it into the Wi-Fi Alliance as a new WPS standard and no one else at Apple was motivated to go try to do so after I was gone.
Bradley Ringel's answer is correct, but it's also worth noting that this isn't something that a third-party application would be able to do on iOS either, as third-party apps do not have access to the Wi-Fi settings.