SkyOS alternatives

Tools that do what SkyOS does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from SkyOS.

Read 2026-10-24 · SkyOS itself: Free

With a free plan or free to use: Context Engine, MemoryRouter, Hjarni, Capacities, aNotepad.

10 alternativesUnlike SkyOS

#1
Context Engine Knowledge
Stores decisions, notes and files that AI tools save and read over MCP, shared across a team.
More widely used
2.4k linking domains
From $12/mo
#2
MemoryRouter Productivity MCP · open
Stores your preferences and project context and passes it between ChatGPT, Claude and other AI tools via an MCP connector.
Own MCP server
14
Active
From $20/mo
2026
#3
Hjarni Knowledge MCP · sign-in
Stores plans, decisions and preferences as markdown notes that ChatGPT and Claude can search and edit across chats.
Same job
35
Active
From $12/mo
2026
#4
Atly Knowledge MCP · open
Ranks and explains local places against a person's stated intent, such as a quiet café for remote work, through an app or API.
Also: SearchOwn MCP server
3.5M
Active
#5
NoteGPT Knowledge
Summarizes lectures, videos, and documents; generates notes, slides, and audio content for learning and research.
Also: Summarization, WritingMore widely used
1.3M
Active
From $9.99/mo
#6
Mem Knowledge MCP · sign-in
Stores notes, links related notes automatically and answers questions over your saved notes through a built-in chat.
More widely used
15k
#7
Capacities Knowledge MCP · sign-in
Turns notes, tasks and sources into linked objects, and surfaces places where notes mention each other without a link.
Same job
4.6k
Active
From $9.99/mo
2022
#8
aNotepad Knowledge MCP · sign-in
Browser-based notepad for writing, formatting and sharing notes via public, private or password-protected links, with PDF and Word export.
Also: WritingMore widely used
28.5k
2009
#9
Plurality Network Knowledge MCP · sign-in
Stores your preferences, writing style and knowledge in a user-owned memory that browser extensions and MCP pass into chatgpt, claude and gemini.
Same job
207
Active
#10
Agentage Memory Knowledge MCP · open
Stores plain markdown memory files in an EU-hosted account and shares them with Claude, ChatGPT, Cursor and Claude Code over MCP.
Own MCP server
190
Active

← SkyOS: the full card All Knowledge tools →

How this list is made: the words SkyOS is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.