# Penlog

> An API-first handwritten journal for iPad. Write by hand with Apple Pencil; Penlog OCRs each page into structured, MCP-addressable data, so your handwritten tasks and notes are readable — and tasks writable — by AI agents and tools.

Penlog is a single-journal handwriting app for iPad (iPadOS 18+). The user writes ink; AI agents read the OCR'd structure and can seed or update tasks alongside it — they never overwrite handwriting. Daily pages sync to Notion, and an MCP server lets any MCP-compatible agent (Claude, ChatGPT, or your own) work with what you wrote.

## Product
- App Store: https://apps.apple.com/app/id6765667652
- Pricing: https://penlog.app/pricing. Free to write in. Penlog Pro is $8.99/month or $89.99/year, with a 14-day free trial on either plan. Notion sync and Agent/MCP access require Pro.

## Developers & agents
- MCP server: https://mcp.penlog.app (one-click OAuth, or a plg_live_ bearer token)
- Docs: https://penlog.app/docs
- Quickstart: https://penlog.app/docs/quickstart
- Tool reference: https://penlog.app/docs/tools

## Pages
- Home: https://penlog.app/
- For Notion: https://penlog.app/for-notion
- Pricing: https://penlog.app/pricing
- About (founder Rick Thomas): https://penlog.app/about
- FAQ: https://penlog.app/#faq
- Changelog (dated releases): https://penlog.app/changelog (RSS: https://penlog.app/changelog.xml)
- Penlog vs Goodnotes: https://penlog.app/vs/penlog-vs-goodnotes
- Penlog vs Notability: https://penlog.app/vs/penlog-vs-notability
- Penlog vs Penjo: https://penlog.app/vs/penlog-vs-penjo
- Support: https://penlog.app/support
- Privacy: https://penlog.app/privacy
- Terms: https://penlog.app/terms