I’m US based so curve doesn’t work in my country. Doesn’t work for me + never used it + not sure where you are = can’t comment either way
So yes but also no. They can both do NFC sharing, but the apex flex is more for cryptographic needs (key control, u2f, etc.) And the xNT is more generic NFC. The apex flex is actually a java card running Java applets, the xNT is a dumb little guy