WWDC 2018 Aleksey Novicov
summary
An iPhone app that swaps full contact cards directly over Bluetooth peer-to-peer with no server or middleman so nothing is uploaded to a cloud. Phones that come close generate a matching color-and-pattern proximity pairing to prove the other device is the intended recipient. Accepted cards are written straight into the Contacts app. A one-step widget exchange lets users send a card without unlocking. Free on the App Store, iOS only for now.
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