I've previously used the Appcelerator platform to build iOS and Android apps, but then I switched to React Native and I can only say good things about it. The community really seems to grow in the past few years and you can easily find any sort of packages or solutions to any issues you may run into.
Here are some good resources I used to get started with React Native:
reactjs.org/docs/getting-started.html (you'll have to understand how React works before diving into React Native, but you mentioned that you're already familiar with React so you can skip this)
redux.js.org/basics (optional if you're just getting started with React Native, but when you'll be building more complex apps, you may need to reach out for Redux)
reactnavigation.org (use this package when you want to navigate between screens or create some sort of tabbed application. It's very well documented and I had no issues using it.)
I've previously used the Appcelerator platform to build iOS and Android apps, but then I switched to React Native and I can only say good things about it. The community really seems to grow in the past few years and you can easily find any sort of packages or solutions to any issues you may run into.
Here are some good resources I used to get started with React Native:
Packages:
App Icons + Splash Screens setup (that's always a tricky part so the links below def helped me):
Happy coding! 👨💻👍