Condor Spread/butterfly vs Iron condor and iron butterfly

Hello,

I’m reading the section that explains how to use options to manage volatlity.

I have one basic question: The difference between iron condor and just a condor spread and also between butterlfy spread and iron butterfly is that the “iron” ones uses Puts and Calls while the regular spreads uses Puts OR Calls? Am I right?

Thanks!

A butterfly spread uses four calls or else four puts.

An iron butterfly spread uses two calls and two puts.

Similarly for a condor vs. an iron condor.