Thanks for the answer, @eskimo! In a non-sandbox environment, there is a way to fetch processor temperature, and there are many example apps doing that already. I must build it because that is the number one missing feature based on many users' feedback. In my app, as I see it right now, that would be an additional feature tough, that is available after installing the helper tool outside of the App Store. And there are two things I'm trying to figure out: Can I install an external helper tool for the app that is installed via the App Store? How can I establish communication between the main app (from the App Store) and the helper tool (installed from my website)?