I guarantee they spent more.
The host over 2 million apps, in hundreds of geographic locations. With updates, they are distributing billions of releases and updates a year. And some of those apps exceed a gigabyte in size.
Outside of raw bandwidth and storage costs, someone has to run those tens of thousands of servers across the world, and manage development of the distribution software.
Then you need sales and marketing personnel to build and run the App Store, and hundreds of similar staffs to build and manage the hundreds of international stores in dozens of different languages.
Then you need software development teams to build and maintain the
- payment processing, including server infrastructure, the iOS, Mac SDKs, the APIs, etc
- software distribution and updating infrastructure, from tools to manage thousands of servers, as well as track and report, and more Mac/iOS SDKs and sever APIs.
- The App Store itself, with custom app pages, search, advertising, Mobil app versions, web versions, account management, support, etc.
- App Submission infrastructure, including XCode, Swift, Automated App Analysis tools, Bitcode, the Bitcode server infrastructure, crash reporting, TestFlight test distributions and infrastructure, developer accounts including security profile generation/management, ItunesConnect account management including sales and legal reporting along with App distribution interface and controls.
And then there is
- Sales and marketing costs, advertising, developer co-marketing
- Customer support
And finally, developer support. Apple likely has at least a thousand people working in developer support, mostly on app submissions. And they are all in Cupertino, meaning Apple is spending well over $100M a year just on payroll costs for that department alone.
$1B? I’d be surprised if it’s less than triple that. They likely spend close to half a billion on App Store/Developer advertising alone.