Penlog — A handwritten journal for people who use software.
iPad · Apple Pencil · iPadOS 18+<br>Write by hand. Your other apps update themselves.
Write a task by hand and it shows up in Notion. Cross it off with your<br>Pencil and it completes there too. Ask Claude to put something on<br>tomorrow's page and it's waiting when you sit down.
Works with Notion .
Download on the App Store See how it works<br>Made in Indianapolis.
20 seconds<br>Cross it off on paper. It's done in Notion.
Watch<br>See it work, start to finish.
How it works<br>One page. Every tool.<br>01 Write by hand<br>Pick up your Apple Pencil. Your daily page is waiting — blank, dotted, grid, or lined. Every page is a day, so there's nothing to name and nothing to file.
02 It comes out structured<br>Penlog reads your notation, not just your words. A bullet is a task, a circle is an event, an X is done. No tagging, no cleanup.
03 Cross it off. It's done everywhere.<br>The task you wrote by hand becomes a real task in Notion. Cross it off with the Pencil and it completes there too. It works in reverse as well: ask Claude to put something on tomorrow's page, and your calendar arrives the same way, as the day's events already on the page.
Integrations<br>And also, not instead of.
Penlog doesn't replace your planning stack. It gives everything in it a window into your handwritten day.
✓ Official Notion Marketplace connection →<br>Notion →<br>Tasks & databases
Claude<br>via MCP
ChatGPT<br>via MCP
Apple Calendar<br>Your day's events
Your agents<br>Any MCP-compatible tool
API & MCP<br>Agents read the page. And write back to it.
Every journal page is a REST resource, and it arrives already sorted into<br>tasks, events, and notes rather than as a wall of transcribed text. Any<br>MCP-compatible agent can read it and add typed text alongside your ink.
GET /api/v1/pages/today<br>"date": "2026-04-25",<br>"paper": "lined",<br>"tasks": [<br>{ "text": "Follow up on API spec", "age_days": 3 },<br>{ "text": "Team sync notes", "age_days": 0 }<br>],<br>"events": [<br>{ "title": "Team sync", "time": "14:00" }<br>],<br>"seeded_blocks": [<br>{ "origin": "claude", "content": "Briefing for today…" }
MCP server at mcp.penlog.app — connect any compatible agent in one step.
See it live<br>Watch an agent read your handwriting.
Available now<br>Because the writing is the thinking.
Write by hand. Work with everything. Penlog is on the App Store — install it and start writing.
Download on the App Store<br>Free to download. Requires iPad with iPadOS 18+.<br>Made in Indianapolis.