The number one drawback to React Native is performance . It is better than other hybrid tools and web apps, but there’s no getting around the large overhead framework that slows down performance when measured against native apps. … Using React Native for anything more complex could mean taking a hit to user experience.11 Eyl 2018
Read moreWhat’s Wrong With React Native?
Lack of Some Custom Modules Despite its maturity, React Native still lacks some components. Others, in turn, are underdeveloped. The chances are you won’t have a problem with that, as the majority of custom modules you need are available, well-documented, and working properly.
Read moreWhy is React Native so bad?
A bigger problem with React Native is the fact, that it does not fully support all native features available within iOS and Android . Therefore, if a developer doesn’t want to wait for Facebook to provide special support for the feature he needs, he might still have to stick to native code in some cases.
Read more