There are a few things you can’t do on an iPhone, but once you’re set up, you won’t notice the difference. Vivokey is the big one, but as Pilgrim mentioned its well and truly on the way.
NFC tools (linked above) is the best app for iOS, and TagInfo from NXP is also available and semi-useful.
No need to jailbreak, iOS is pretty damn good with most NFC stuff these days.