Flutter apps are written in dart which compiles to native code or js/wasm on web. Dart can interop with swift/obj-C/Java/Kotlin through the use of channels. D

Flutter apps are written in dart which compiles to native code or js/wasm on web. Dart can interop with swift/obj-C/Java/Kotlin through the use of channels. Dart can interop with C/Rust/C++ directly through FFI[1] [1]: https://dart.dev/guides/libraries/c-interop https://dart.dev/guides/libraries/c-interop