How can I use NFC products? what kind of NFC chip is recommended?

When customers get empty tags, please kindly download application from “Google Play” and get “ NFC Tools” or “ NXP Tagwriter”. And you can choose new dataset and start to program NFC tags. If you can’t download the tags, please contact us to get APK for android phone. 
Normally we would meet 2 protocols tags, ISO14443A and ISO15693. ISO15693 protocol can be with longer read distance no matter read by fixed reader or read by smart phone. But some older phone model just can support to read NDEF type tags, so formatting tags would be very important.