It's suspect it's not in the title, because it's assumed and not interesting or unique. Browser compatibility is listed on linked page.

While it may share a common history and core with ReactJS, React Native is really a separate beast. I realize it may be confusing due to the overlap in names. When people say React they are generally referring to https://reactjs.org and not the intersection it has with http://www.reactnative.com/ or the union of the two projects.