The problem is that developer experience (and often user experience) aren’t always the highest priority. For many businesses that want to ship a mobile app, cost is by far the biggest constraint. And “writing once, shipping everywhere” pushes out native development.

We at Khan Academy have moved much of our app to React Native and overall it’s a great experience and much easier to maintain than two native apps.

Of course, the constraints and requirements vary by business and so what’s right for us may not be right for you.