I don&#x27;t know about that; the cheap Square reader is a piece of crap that is really just a &quot;starter&quot; product (they&#x27;re not well-made and fall apart after even moderate use). Anyone who swipes more than 2 or 3 cards a day would be better served by one of Square&#x27;s commercial readers -- all of which connect via Wi-Fi, Bluetooth or the Lightning port.<p>Also, Apple would certainly include a Lightning-&gt;Headphone adapter that would also be usable for card readers. They just use the line in from the microphone.