This might be my lack of knowledge in this area since I'm just reading at the minute but from my reading that's not the case. If you create a standalone app (exe compile option) there is no JIT, just: "A standalone, architecture-specific executable file containing the source code compiled to machine code and a small Dart runtime." that "... handles type checking and garbage collection."

Unless that runtime is what you're referring to as a JIT. But since it outputs machine code that is a compiled program, not a JIT. I obviously can't speak to the size as I've not written anything yet, I'm just practing.

Quite happy to be corrected if I'm misreading things though.