If you do not have that option you are logged in to the main App Inventor server.
You need to be logged in to the ios test server http://iosbuildservertest.appinventor.mit.edu/
If you do not have that option you are logged in to the main App Inventor server.
You need to be logged in to the ios test server http://iosbuildservertest.appinventor.mit.edu/