You can do both: two years ago I was looking for the best solution to ship a cross platform app (Android + Windows) and I just couldn’t decide whether to go platform-based UI + a shared C++ core or React Native. I ended up using React Native + a shared C++ core exposed as a RN module. As long as the API surface is narrow (and it is for my use case) this turned out well and it still gives me the possibility to scrap RN at any given time for platform based UIs.
Bonus: since most of my logic is C++, I am still able to ship the app using two RN versions: 0.59 for Windows 7 and 0.67 for Android
Bonus: since most of my logic is C++, I am still able to ship the app using two RN versions: 0.59 for Windows 7 and 0.67 for Android