📝MythOS describes itself as a networked knowledge platform where every idea, person, project and decision lives as a linked memo in a library you own. 📝Microsoft's support site introduces 📝Microsoft OneNote as "a digital note-taking app that provides a single place for keeping all of your notes, research, plans, and information". They split on structure and reach: MythOS links memos through @ mentions and hands the library to AI agents over 📝MCP, while OneNote organizes notebooks into sections and pages, each page an infinite canvas.
At a Glance
Structure and Linking
Microsoft's introduction says "Every notebook is automatically organized into sections which contain pages," and that "In OneNote, every page is an infinite canvas." The same page describes tags that "categorize and prioritize notes that need to stand out," To-Do tags for lists, and a search that finds information "no matter where you might have jotted it down." In MythOS the unit is the memo. Typing @ draws a mention to another memo, and every mention becomes a 📝backlink that feeds the library's 📝knowledge graph; typing # adds a tag that files the memo into a collection. Each day gets a 📝Daily Memo, MythOS's form of the 📝daily note, with a Tasks checklist and a Timeline.
Access and Reach
Microsoft's introduction says OneNote notebooks "are stored online so you can easily get to them on any of your mobile devices," and that "You can access and edit your notebooks directly from a web browser." It also says OneNote is "seamlessly integrated" into 📝Microsoft Teams, which it calls "another convenient access point for taking notes." Microsoft's versions page names apps for Windows, Mac, iPhone, iPad, Android and the web. It says the Windows desktop app, once named OneNote 2016, is "now simply called" OneNote, and that it is "the only version of OneNote that supports local notebook storage on your PC's hard drive." MythOS exposes a library to MCP clients through one endpoint, mythos.one/api/mcp. 📝Claude on the web, desktop, iOS and Android signs in over OAuth, and a connected client gets 60 tools for search, memo writes, templates, tasks and the daily journal. 📝Semantic search runs through those AI clients, not the in-app search bar. Chat inside MythOS runs on six model providers, on a MythOS-funded balance or the user's own key.
Price and Plans
Microsoft's versions page says "all supported versions of OneNote are free to download and use" and that "certain premium features can be unlocked with an optional Microsoft Office 2019 or Microsoft 365 subscription." Microsoft's plan comparison lists OneNote as included in Microsoft 365 Personal, Microsoft 365 Family, Microsoft 365 Premium and Office Home 2024. MythOS's Plans & Tiers memo states that "writing is never the thing you pay for"; every account starts on Free, capped at 10 new memos a day, and the Scribe, Scholar and Oracle plans sell reach, such as media uploads, public publishing, collaborators and agent access.
Who Each Is For
Microsoft presents OneNote as a place for "everything you need to remember and manage in your life at home, at work, or at school." MythOS's own overview says one library serves "private thinking, team collaboration, public writing, and the AI tools you work with."
Related
- 📝Microsoft OneNote — reference memo on Microsoft's note-taking app
- 📝MemPalace vs Obsidian vs MythOS as Claude Memory — the hub comparing MythOS with other memory systems
- 📝MythOS vs Notion AI — another pairwise comparison with MythOS
- 📝MythOS vs Evernote — a sibling comparison in the same series
- 📝MythOS MCP — how a MythOS library connects to Claude and other MCP clients