You ship your app. Sales start showing up in App Store Connect. And then you wait. The money doesn't arrive on the first of the month like a paycheck, and it doesn't match what you saw in your sales dashboard last week. If you've ever stared at your bank account wondering where Apple's money went, the answer isn't a bug — it's Apple's fiscal calendar. Here's how the whole thing works, and a small Swift helper to stop you from tracking it by hand.