Former Apple Engineer Launches szn, an iMessage AI Agent

A former Apple Intelligence and Siri engineer has unveiled szn, an iMessage‑based AI agent that lets users book appointments, shop online, and manage everyday tasks without leaving the messaging app.

What is szn?

szn functions as a conversational assistant embedded directly in iMessage. By typing natural‑language commands, users can ask the agent to schedule meetings, order groceries, track deliveries, or retrieve information, and szn responds with actionable results within the chat thread.

How it Works

The service leverages the same large‑language‑model technology that powers modern chatbots, but it is fine‑tuned with Apple’s internal APIs and Siri expertise. This integration enables szn to access calendar data, contacts, and third‑party services through secure iMessage extensions, keeping user data within Apple’s ecosystem.

• Send a message like “Book a table for two at 7 pm tomorrow”
• Ask “Order my usual coffee from Starbucks”
• Request “What’s the status of my Amazon package?”

Why iMessage?

iMessage already serves as a hub for personal communication, and Apple’s focus on privacy makes it an attractive platform for AI assistants. By operating inside iMessage, szn avoids the friction of downloading separate apps and benefits from Apple’s end‑to‑end encryption.

szn is designed to feel like a natural extension of a conversation, not a separate tool.

The founder, who spent years on Apple’s Intelligence team and contributed to Siri’s evolution, says the goal is to make AI assistance as seamless as texting a friend. Early users report that the agent handles routine tasks quickly, though it still relies on third‑party integrations for fulfillment.

As AI agents proliferate across platforms, szn represents a unique approach that capitalizes on Apple’s tightly controlled environment, potentially setting a new standard for in‑messenger productivity tools.

iThinkDiff coverage of szn iMessage AI agent