1. Same UI used on all platforms
When it comes to frameworks, its only flutter which allows sharing of both UI and UI code. This thing allows apps to look like native and being very simple at the same time. The rendering process which flutter has makes it stand out among other platforms.
2. Time-to-Market Speed is Higher
The frameworks of flutter function quickly and efficiently as compared to other. So the number of hours required in development are less in Flutter. The reason is the time saved in writing platform-specific code.
3. Similar to Native App Performance
When using complex UI animations, it gets difficult to distinguish a Flutter based app and any other native app. This is the beauty of Flutter.
Why React Native?
1. Save time and money
React native comes with a number of libraries which are opensourse. These libraries have pre bulit components which help you speed up your development speed.
2. Add third-party plugins
React native also provide you the facility to integrate third-party plug-ins as well as API's. These inlcudes payments , maps and much more.
3. Similar to Native Apps
Both the technologies favour a single code base that is implentable on both IOS and android devices. React Native and Flutter also require less effort in codding and apps can be launched very quickly even on small buget. Both the technologies have their strengths and weaknesses somwhere. React Native has currently a huge market because of its earlier launch. On the other hand Flutter is the biggest competitior of React Native because of its easy functionaltites.Currently both are winners!