Comparison
Penlog vs Goodnotes
Goodnotes is the notebook most iPad writers already own, and it is excellent at notebooks, PDFs, and sharing. Penlog does one narrower job: it is a daily journal that reads your notation, so the tasks you write by hand carry forward, land in Notion, and reach your AI assistant. Here is how they compare, including where Goodnotes is the better pick.
Side by side
| Penlog | Goodnotes | |
|---|---|---|
| What it is | A handwritten daily journal. Every page is a day. | Notebooks, text documents, and whiteboards organized in folders. |
| Handwriting recognition | Reads your notation: a bullet is a task, a dash is a note, an X is done. Also transcribes the page. | Searchable handwriting, conversion to text, and handwritten math to LaTeX. |
| Tasks | Handwritten tasks carry forward to the next day until you cross them off. | No built-in task tracking. |
| Notion | Two-way sync with Pro. Crossing a task off on paper completes it in Notion. | No native integration. |
| AI agents | MCP server with Pro. Claude, ChatGPT, or any MCP agent can read and search your pages and add tasks. | Official ChatGPT and Claude app that creates new documents. It can't read or edit your existing notes. |
| Calendar | Apple Calendar events on the day's page, free. | Google Calendar on a planner template, on Pro, marked experimental. |
| PDF annotation | No. | Yes, and it is one of the best at it. |
| Audio recording | No. | Yes, synced to your ink, with transcription and meeting summaries. |
| Sharing and teams | No. One person, one journal. | Real-time collaboration, link sharing, and a Teams plan with SSO. |
| Platforms | iPad only, iPadOS 18 or later. | iPad, iPhone, Mac, and Vision Pro. Android, Windows, and web on paid plans. |
| Price | Free to write in. Pro is $8.99/month or $89.99/year, with a 14-day free trial. | Free for 3 notebooks. Essential $11.99/year, Pro $35.99/year, both with a 7-day trial. A one-time purchase is also available. |
When to choose Goodnotes
- You annotate PDFs, slides, or textbooks.
- You need your notes on iPhone, Android, Windows, or the web.
- You record lectures or meetings and want the audio tied to your notes.
- You share notebooks with classmates or a team.
- You keep many notebooks by subject or project and want templates for each.
When to choose Penlog
- You keep a daily page and want its tasks to follow you from day to day until they are done.
- Your work runs in Notion and you are tired of retyping what you wrote by hand.
- You want Claude or ChatGPT to read what you actually wrote and work from it.
- You would rather write than file. There is nothing to name and nothing to organize.
Can you use both?
Yes, and plenty of people should. Keep Goodnotes for PDFs and your subject or project notebooks. Use Penlog for the day itself: the plan, the meeting notes, and the tasks you want to follow through on.
Free to write in. See what Pro adds, or read the FAQ.
Goodnotes details checked September 2026 against: goodnotes.com/pricing , Goodnotes plan comparison , Goodnotes in ChatGPT and Claude , Goodnotes calendar sync , App Store listing . Prices and features change, so check their site for current plans. Goodnotes is a trademark of its owner. Penlog is not affiliated with it.
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