HOLD ON. You can get your iPhone to actually recognize your Titan key via NFC?

Please tell me how to do that?

Two iPhones and every type of Titan key that is currently sold, still haven't been able to make NFC work, nor authentication over Bluetooth.

You just tap your key to the back of your iPhone whenever prompted (such as Coinbase app login).

Have you actually done that with a Titan key and had it work?