Developers say the App Store has started rejecting updates for apps using third-party SDKs that collect data which can be used for device fingerprinting
Apple is rejecting updates to apps that conflict with its new privacy policies in iOS 14, signaling that it is now getting serious about privacy enforcement.
Context & Ripple Effects
Apple had already used App Store rules to curb third-party data practices, including a crackdown on location-data sharing without explicit consent and limits on address-book databases. The reported update rejections extend that enforcement from an app's own code to the SDKs embedded inside it.
The later plan to require developers to justify access to selected APIs shows the same fingerprinting concern moving toward more formal API-use disclosure requirements.
First-order effects
- Developers whose updates include fingerprinting-capable third-party SDKs face blocked App Store releases until those components are removed or changed.
- Third-party SDK providers become an immediate compliance dependency for their app customers, because their data collection can prevent an otherwise unrelated app update from shipping.
Second-order effects
- iOS developers must audit SDK behavior rather than treat vendor integrations as separate from their own App Store compliance, increasing pressure on SDK vendors to document or alter data practices.
- Apple's enforcement gives privacy-focused SDK providers a clearer competitive advantage over vendors whose tools depend on data usable for fingerprinting.
Third-order effects
- App Review is becoming a control point for governing the software supply chain inside iOS apps, not only the features developers build themselves.
- The progression from data-sharing restrictions to fingerprinting enforcement and API justifications points toward more granular disclosure and permission rules for third-party data recipients.
The trend: Apple is tightening App Store privacy governance by making developers accountable for the data behavior of embedded SDKs.