Do Square NFC readers support Apple Value Added services? I want to implement an NFC loyalty card to be used with Square readers.
Currently, our readers NFC don’t support Apple Value Added Services. We’re constantly working to improve our features based on feedback like this, so I’ll be sure to share your request to the API product team. 
Is it possible to integrate an NFC reader to read the loyalty cards into Square?
At this time only Square NFC readers are able to connect with the Square app.
Can Square read QR codes for loyalty programs?