Privacy Manifest Required Reason API Audit

This article provides a practical guide for iOS developers on auditing and creating PrivacyInfo.xcprivacy manifests for required reason APIs. It explains what privacy manifests are, how to create them in Xcode, and the importance of matching API usage to Apple's approved reason codes. The author emphasizes treating the process as a small audit: inventorying app targets, SDKs, and extensions to find actual required reason API usage, then selecting honest reasons. It covers Apple's documented categories like file timestamps, system boot time, disk space, active keyboards, and user defaults. The goal is to make the manifest reflect real code rather than copying generic entries, ensuring compliance with Apple's privacy requirements for iOS, iPadOS, tvOS, visionOS, and watchOS apps.