Or is this not possible?
Currently, there is no passive Near Field Communication (NFC) reader—or any other type of RFID reader, for that matter—built into an Apple iPhone (see Apple Eschews NFC). But there are a number of companies, such as U Grok It, that offer readers that can be connected to an iPhone, enabling them to read passive ultrahigh-frequency (UHF) tags. The tag-read event can then be linked to an iPhone app.
Tertium Technology‘s BlueBerry iS HF and BlueBerry UHF, as well as CAEN RFID‘s R1170I – qIDmini and other models, can interrogate tags and transmit the collected data to an iPhone via a Bluetooth connection.
I would encourage you to write to Tim Cook, Apple’s CEO, and tell him he should add RFID to the iPhone.
—Mark Roberti, Founder and Editor, RFID Journal