Effective Date: October 3, 2026

Dotline (“we,” “our,” or “us”) is a Mac app for thinking on a free-form canvas, with optional AI assistance. This policy explains what data Dotline handles.

1. The Short Version

Dotline has no accounts and no servers of its own. Your canvases stay on your Mac. Canvas content leaves your Mac only when you ask the AI for help, and then it goes directly to Anthropic using your own API key.

1. Information Stored on Your Mac

• Your canvas files (.canvas), saved wherever you choose.
• App settings and recent documents.
• Your Anthropic API key, if you add one, stored in the macOS Keychain.
• Your trial and purchase status, provided by Apple.

We do not receive or have access to any of this information.

1. In-App AI

When you use Expand with AI or Ask AI, Dotline sends your request, the text outline of the current canvas, and the text of the selected note to Anthropic (api.anthropic.com) using your API key. Dotline asks for your permission before the first request, and you can withdraw it at any time in the sidebar’s AI tab. Anthropic processes this data under its own terms and privacy policy and bills usage to your Anthropic account. We never see your API key or your requests.

1. MCP Clients

If you connect an MCP client such as Claude Code, that client reads and edits the canvas you have open in Dotline, on your Mac. How the client handles that content is governed by its own terms.

1. Purchases

Purchases of the 14-day trial and Dotline Pro are processed by Apple through the Mac App Store. We do not receive your payment details.

1. What We Do Not Do

• No analytics, tracking, advertising, or crash-reporting SDKs.
• No sale or sharing of personal information.

1. Children’s Privacy