Guides

Short, practical guides on giving an AI agent an iPhone. Written by the maker of thumbs, who says so wherever it matters.

• How to test your web app on an iPhone with an AI agentHave an agent open your site in Safari on an iPhone and tell you what the keyboard, zoom and layout do.
• How to give an AI agent an iPhone with MCPHow an agent drives an iPhone, local versus remote MCP, Simulator versus real device, and how to connect Claude Code.
• iOS Simulator MCP: local or remote, and which to useWhat an iOS Simulator MCP server does, local servers versus a remote one, and how to connect Claude Code or Cursor.
• How to test an iOS app with Claude Code or CursorWhat works today for a native app (a local setup) and for a web app (no install), and what thumbs can't do yet.
• Does the iOS keyboard cover your Submit button? Check it with an AI agentWhy the on-screen keyboard hides Submit in Safari on iOS, a prompt that makes an agent check it, and how to read the result.
• Remote vs local MCP servers: how OAuth sign-in worksLocal versus remote MCP servers, what the spec asks of OAuth 2.1 sign-in, and how thumbs signs in with Google.
• A mobile-web QA checklist for an AI agent on an iPhoneTen checks an agent can run on your site in Safari on iOS, each with what to look for and honest limits.

thumbs is in early access: free, on the iOS Simulator, let in one at a time from a waitlist. Join the waitlist.