Apple Gives Siri AI Access to Third-Party Apps

Apple has begun rolling out a capability allowing Siri to access and act within third-party applications using AI, expanding the assistant's scope beyond Apple's own ecosystem for the first time in a meaningful way. This means Siri can now interpret user intent and execute actions inside apps built by external developers, effectively turning it into a cross-app AI agent on Apple devices. For developers, this creates a new integration surface: apps that expose their capabilities to Siri's AI layer can become addressable by voice and natural language without users having to open them directly. This positions Apple's device-side AI stack as a competing platform to standalone AI assistants, with privacy advantages from on-device processing. Teams building iOS apps should evaluate how to expose their app's core functionality through Apple's new Siri integration APIs.