iOS would likely kill the app as soon as it got out of hand, and rely on the state restoration hook to bring back the state as the user left it. Normal macOS ap

iOS would likely kill the app as soon as it got out of hand, and rely on the state restoration hook to bring back the state as the user left it. Normal macOS apps don't have that, though. If the leak was in some part of the system, maybe a problem, but I'm sure they test pretty rigorously, and get enough crash reports to figure things out fast with that many devices in the wild, all in pretty constant use.