Apple opens Siri AI to all developers through App Intents

Apple opened Siri AI to all developers through App Intents on November 3. A new Developer Preview in the iOS 27.3, iPadOS 27.3, macOS 27.3 and visionOS 27.3 betas lets any app put its content and actions into the new Siri. If you have an iPhone app, Siri can now become a voice front end for it: check an order, book a slot, reorder a product. The work you do in App Intents now decides whether Siri can use your app when this ships to customers.

What actually happened

From Apple's developer announcement:

• Any developer can integrate with Siri AI through App Intents. Apple says Siri AI gets your app's actions together with "personal context understanding, onscreen awareness, natural language, and more."
• Custom actions run as-is. Apple's examples: "checking a delivery," "booking a reservation," "placing an order."
• Skills are new. They teach Siri AI to chain several of your actions into one flow for a complex request.
• No schema lock. Siri AI can surface "any entity in the Spotlight semantic index, not just the ones that fit an existing schema."
• Timeline: this is an early preview. Apple says it ships to customers "in a few months," and App Store submission opens "in the spring."
• Limits: it needs an Apple Intelligence device in a supported language (English, French, Japanese, Korean, Portuguese, Spanish now). It is not available in the EU on iOS, iPadOS or watchOS. Server-side features have daily usage limits, and Apple says expanded access will cost a fee later.

Apple has not yet published the terms and usage policies. It says "more to share soon."

Why it matters for your business

Voice assistants were a dead end for most small apps because Siri only knew a few fixed domains. That limit is gone. An app that exposes clean intents (CheckOrderStatus, BookAppointment, ReorderLastPurchase) is now a tool that an assistant on the customer's phone can call.

That also means your app's quality now depends on its intents. An intent with vague parameters, or one that needs three screens of state, will fail when an LLM calls it. Design intents like an API for an agent: one job each, typed parameters, clear errors, and confirmation before anything that costs money.

Do not ship anything permanent yet. The terms are not out, and usage limits and fees are not defined. But the build window is now. Spring submission will come quickly.

Sources: Apple Developer News, Siri AI Developer Preview docs.