Flutter and Swift serve different purposes in app development. Swift is Apple’s native programming language, offering performance and deep integration into the iOS ecosystem. Flutter, on the other hand, is a cross-platform framework that allows developers to write code once for both iOS and Android. While Swift excels in iOS-specific development, Flutter offers flexibility, rapid development, and a unified codebase for multiple platforms.

Choose the right framework for your iOS app.
https://flutternest.com/blog/flutter-vs-swift