Apple doesn't seem to notice unless you're using a widely-known toolset that they can easily detect, and even then, they miss quite a bit. Not that this means

Apple doesn't seem to notice unless you're using a widely-known toolset that they can easily detect, and even then, they miss quite a bit. Not that this means it's a good idea to include an interpreter under the assumption that Apple won't notice -- if they do notice & care, you'll find you will no longer be able to update your app. Apple has also demonstrated a history of caring about certain violations at the most inopportune times -- lots of camera applications broke when 3.0 was released, and Apple wouldn't let the authors release updates, since the only way to implement the required functionality was through undocumented API.