Migrating from SiriKit to App Intents 2.0 for Siri AI on iOS 27

Why Migration Is Non-Optional

Apple formally deprecated SiriKit at WWDC 2026. Existing SiriKit handlers still compile in Xcode 27 but emit deprecation warnings and do not surface in the new Siri AI agent flows. App Intents is now the only supported integration path for third-party actions on iOS 27.

The business impact is discoverability. Apps without App Intents are invisible to Siri AI, semantic Spotlight search, Focus filters, the Action Button, and conversational shortcuts. Enterprise MDM apps are the main exception; consumer products are not.

App Intents 2.0: What Is New

App Intents 2.0 adds the View Annotations API so users can reference on-screen entities in natural language ('share that invoice', 'remind me about this task'). Streaming responses support long-running operations without blocking Siri. The App Intents Testing framework validates integrations through system pathways — no fragile UI automation required.

Entity schemas are richer: persistent identifiers, indexed properties, and tighter SwiftData/Core Data bridging. If your domain model was not intent-friendly, now is the time to refactor.

• Map each legacy SiriKit intent to an AppIntent struct with clear parameter summaries
• Expose entities for every object users might reference by voice
• Add AppShortcutsProvider for discoverable phrases in Shortcuts gallery
• Write App Intents tests for happy path + permission-denied paths
• Validate on iOS 27 beta hardware, not just Simulator

Migration Timeline We Recommend

Weeks 1-2: inventory SiriKit domains, usage analytics, and dead code. Weeks 3-6: implement App Intents parity for top three user actions. Weeks 7-8: beta test with internal users on iOS 27; fix phrase disambiguation issues. Week 9+: add View Annotations on key screens if your UX is visual-heavy.

Budget 3-6 engineering weeks for a medium-complexity app with existing SiriKit. Greenfield apps should design App Intents first, UI second.