> App publishers often allow third-party companies, for a fee, to insert SDKs into their apps. The SDK maker then sells the consumer data harvested from the app

> App publishers often allow third-party companies, for a fee, to insert SDKs into their apps. The SDK maker then sells the consumer data harvested from the app, and the app publisher gets a chunk of revenue. It's hard enough for users to know what exactly the apps on their phone are doing. I thought the App Store gatekeepers were protecting us from this kind of crap and cared about our privacy?