As long as the interpreter doesn't execute any prohibited system calls, the iOS store reviewers won't care and won't have a point to argue. OpenGL shaders are

As long as the interpreter doesn't execute any prohibited system calls, the iOS store reviewers won't care and won't have a point to argue. OpenGL shaders are 'interpreted' code (though explicitly allowed). Protobuf messages can be 'interpreted' code. You probably can't get away with shipping Go code as a resource (or fetching it in cleartext over the network), but you probably should secure the input to your interpreter anyways. There's not much difference between downloading and parsing several hundred kb of JSON and downloading and running a script. I mean, there is, but the iOS store peeps don't need to know ;)