cloudkit-sync

Add iCloud sync to your SwiftData app by generating CloudKit infrastructure using CKSyncEngine. The process requires configuring your data models, database scope, and conflict resolution strategy to enable seamless data synchronization across user devices.

CloudKit sync supports configurable conflict resolution strategies including server-wins, client-wins, and timestamp-based approaches. These strategies handle data conflicts gracefully when multiple devices attempt to synchronize changes to the same CloudKit records simultaneously.

You can share CloudKit data between users by configuring CKShare capabilities. The sync infrastructure supports private data synchronization for individual users and optional CKShare-based data sharing for collaboration across multiple iCloud accounts.

CKSyncEngine integration requires iOS 17 and macOS 14 or later. The skill verifies project compatibility before generating core sync files, configuring entitlements, and providing the necessary integration and testing guidance for your application.

Configure CloudKit entitlements by generating the required entitlement files alongside core sync infrastructure. The process includes setting up database scope, verifying project context, and enabling iCloud capabilities to support data synchronization and optional CKShare sharing.

CloudKit sync may fail if project compatibility verification is incomplete or entitlements are misconfigured. Ensure your deployment targets meet iOS 17 and macOS 14 requirements, and verify that data models, database scope, and account monitoring are properly configured.