[WA]

> Web -> Ionic -> RN -> Native iOS

Although that list directly relates to the number of people you reach per line of code.

Web (all devices) -> Ionic (most devices) -> RN (Android + iOS) -> Native iOS (iOS only and probably only more recent devices).

People do cross-platform development, because it runs on so many platforms with almost no additional code. And for sure, you might not get the full experience of every platform this way, but maybe it's still good enough for users to solve their problems?!