Notion is a workspace you rent on US servers. UltimaOS is a workspace you own, encrypted, in the EU.
Notion is an excellent all-in-one workspace — docs, notes, wikis and lightweight databases in one cloud app. But everything you write lives on Notion's US servers in a form the company can read. UltimaOS covers the same ground — rich-text documents, quick notes, kanban boards — as native apps inside a web operating system that is end-to-end encrypted and hosted in the EU. The honest difference is not the feature list; it is who can read your pages and which jurisdiction they sit under.
uDocs is a rich-text word processor with real-time multiplayer editing — presence cursors, a live peer count, headings, lists, tables and images, plus a side AI assistant that can rewrite or extend a passage. It covers Notion's document and wiki use with true co-editing.
uNotes is a quick-capture notebook: title, free-form body, colour tags and a pinned flag. Notes stay masked until you choose to reveal them, so nobody reads over your shoulder. It covers the fast, personal capture Notion is often used for.
uBoards is kanban project management: multiple boards, drag-and-drop cards, labels, checklists, attachments, comments, assignees, due dates and per-board permissions — the structured side of Notion, as a dedicated app.
Feature-for-feature the two overlap. What separates them is encryption, jurisdiction and business model — and those are architectural, not settings.
Notion stores your content on its own US servers in a form it can read. UltimaOS encrypts every document, note and board end-to-end on your device; there is no server-side key and no password database, so the operating system itself cannot read what you write.
Notion runs on US infrastructure and is subject to US jurisdiction, including the CLOUD Act, wherever you are. UltimaOS runs entirely on EU infrastructure under EU jurisdiction — GDPR-aligned by architecture, with no transatlantic transfer.
Notion is a single cloud app. In UltimaOS your documents are files in the operating system's encrypted file system — the same files your mail attaches and your chat shares, never copied into a separate product.
UltimaOS has no advertising model and cannot profile what it cannot read. Your workspace is not training data and not a growth surface.
Rich documents with live collaboration, fast personal notes and kanban boards are all here — the core of how people use Notion, as native apps.
Everything you write is encrypted to your key before it leaves the device. Privacy is the default state, not a paid tier or an enterprise add-on.
EU hosting, EU jurisdiction and no data mining are the starting point of the operating system — not a region setting you have to trust a US vendor to honour.
Short answer
For documents, notes and boards, yes — uDocs, uNotes and uBoards cover the everyday ways people use Notion. The difference is that they live inside an end-to-end encrypted, EU-hosted web operating system rather than a US cloud app.
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No. UltimaOS encrypts your documents, notes and boards end-to-end on your device, with no server-side key and no password database, so the operating system cannot read them. Notion stores your content in readable form on its own servers.
Short answer
Yes. uDocs and uSheets support real-time multiplayer editing with presence cursors and a live peer count, so several people can work in the same document or spreadsheet at once.
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On EU infrastructure, under EU jurisdiction. There is no transatlantic transfer and GDPR alignment is a property of the architecture, not a configuration.
Short answer
No — Notion-style docs, notes and boards are a few of its apps. UltimaOS is a full web operating system that also includes encrypted mail, files, spreadsheets, calendar, chat, contacts and AI.
No ads, no data mining, no trial clock. Individual and family accounts are free — permanently. Organisations pay per seat, and that is what funds it.