I believe the Feitan key mentioned in the article supports Bluetooth LE. If you go to their website it shows that they support iOS. https://www.ftsafe.com/prod

I believe the Feitan key mentioned in the article supports Bluetooth LE. If you go to their website it shows that they support iOS. https://www.ftsafe.com/products/FIDO/Multi#Compatibility https://www.ftsafe.com/products/FIDO/Multi#Compatibility