And here, in fact, the most important rationale for the existence of these technologies appears. Not everyone has unlimited money and time. Especially when we are talking about small businesses. In most cases, a small business already has or plans to launch a web application (website), and the intended application will be its complete copy. In this case, of course, a cross-platform framework will be most beneficial. And if this web application was on React.js, mobile will be made on React Native, and the site already supports mobile layout, then you essentially have 10 out of 10. Also, if your chosen cross-platform framework was created for some specific needs, like, for example, React Native created Facebook in order to unify web and mobile teams, and this is exactly your case, and you write a second Facebook, then this is definitely your choice.
