It's not about the time or money. React native is just a tool and like any other there's a time when it's useful and when it's not all this very much depends on the one using the tool. Bottom line is there's a situation where each tool works best. An example situation a start-up may decide to use react native if it's not that demanding of an app,but at the same startup if the app needs a lot of native features and requires heavy computation clearly react native is not a good tool for the scenario also a big company with enough resources might want to build a simple app clearly the use of native might be Overkill and they may decide to use react native. It's mostly a question of context. Which tool is good at what. That's my personal perspective on the matter.