Hybrid iOS and Android mobile applications are quite challenging to develop, you have to face a lot of technical choices, while having to deploy a maintainable app. With all those concerns in mind, which technology should you use to develop your mobile application ?
It depends ! As always every choice depends of the app you are willing to release, if your main goal is to develop a web app and having a side mobile app is only a nice-to-have, you should probably use React Native or other web related frameworks. But if you want to propose a nice navigation experience to your mobile users and if you are targeting multiple mobile platforms as you will only have to maintain one codebase for both iOS and Android platforms, Flutter is a great choice.