The description is "tools_descriptions.native-apps", on the page https://2018.stateofjs.com/mobile-and-desktop/native-apps, which is probably, a bug.
My guesses are:
1) Non-JS mobile native apps built on Java and Swift.
2) Native script https://www.nativescript.org/
3) Smth idk about.
NativeScript has its own separate page.
NativeScript has its own separate page.