Most of the times we get crash reports from playstore/appstore consoles for native component exceptions.
Crashlytics is a good platform for getting detailed crash reports.
For getting usage analytics and push notifications we had previously experimented with clevertap analytics sdk for which react native module is not available but can be easily ported using Native modules in react native.
I guess firebase now provides detailed in app analytics/crash reporting and react-native-firestack module can easily reduce the efforts of writing native modules. I am actually planning to use the same in my upcoming projects.
Sriraman
Software Engineer @ LifeOn24
Crash Reporting
Analytics
Beta Distribution
We are thinking of integrating Firebase in future to replace Fabric and Crashlytics. But, We are still evaluating it.
All these tools are common for both Native apps and React Native apps.