AuthLite NFC is a free utility app developed by AuthLite LLC for iPhone users. This app is specifically designed to work with the YubiKey NFC and NEO to copy One-time-passcodes (OTPs) or static passwords from a YubiKey into the iOS clipboard.

To use AuthLite NFC, you will need an iPhone that supports NFC technology, with iOS version 11 or later installed. Additionally, you will need a YubiKey NFC or NEO token that is programmed with a "Yubico OTP", "OATH-HOTP", or "Static password" in Configuration Slot 1.

Using the app is straightforward. Launch the app and hold your YubiKey flat against the top edge of your phone. The app will scan the YubiKey and display the OTP or static password on the screen. You can then choose to copy the OTP to the clipboard manually or set the app to automatically save it to the clipboard each time one is read.

It's important to note that the iOS API does not allow the app to trigger NFC scanning when it's closed or in the background. However, AuthLite NFC provides the best possible functionality within the limitations of the API.

AuthLite NFC offers a simple and convenient way to copy YubiKey OTPs and passwords to the iOS clipboard. It is a useful tool for those who rely on YubiKeys for secure authentication on their iPhone.