"*The pitch will clearly be that developers can write a Flutter app once and hav...

_r5wf · on Feb 15, 2017

This may answer your question:

https://flutter.io/faq/#how-does-flutter-run-my-code-on-ios

and

https://flutter.io/faq/#can-i-interop-with-my-mobile-platfor...

mcguire · on Feb 15, 2017

From the first link:

"The engine’s C/C++ code is compiled with LLVM, and any Dart code is AOT-compiled into native code. The app runs using the native instruction set (no interpreter is involved)."

Thanks!