Choosing between FlutterFlow and React Native for app development involves considering how each technology manages scalability, complexity, and maintainability. React Native, established since 2015 and used by major companies like Meta and Microsoft, boasts a mature ecosystem with vast community support and third-party packages, though it requires disciplined architecture and can be complex for new developers. In contrast, FlutterFlow, built on Flutter, offers a visual development approach that facilitates faster onboarding and cross-functional collaboration, making it suitable for small teams aiming for quick delivery without extensive frontend resources. While React Native offers granular control with a steeper learning curve, FlutterFlow provides built-in modularization, consistency through shared components, and supports custom code, making it a strong choice for startups or enterprises needing rapid deployment. Ultimately, both frameworks are scalable but cater to different needs, with React Native appealing to teams with strong engineering expertise and FlutterFlow enhancing productivity for smaller teams through reusable Libraries and collaborative development.