Software Alternatives, Accelerators & Startups

ChainMemory VS Supernotes

Compare ChainMemory VS Supernotes and see what are their differences

ChainMemory logo ChainMemory

Portable, verifiable memory for AI agents โ€” works across ChatGPT, Claude, Gemini and any MCP client

Supernotes logo Supernotes

The fastest way to take notes and collaborate with friends. Create notecards with Markdown, LaTeX, images, emojis and more. Get started for free!
  • ChainMemory
    Image date //
    2026-07-02
  • ChainMemory
    Image date //
    2026-07-02
  • ChainMemory
    Image date //
    2026-07-02

ChainMemory gives your AI agents persistent memory that belongs to YOU โ€” not to a single vendor.

Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so anyone can independently verify integrity โ€” no trust required.

Memories consolidate into a structured Project Brain (decisions, milestones, risks) instead of a pile of raw notes. Multi-agent native: Claude, Cursor and GPT share one consolidated state. Free tier available.

  • Supernotes Landing page
    Landing page //
    2022-02-13

Supernotes is a new way to create notes and collaborate with your friends. Quickly create note-cards with diverse content from task lists to maths equations, with full markdown and LaTeX support. You can tag your cards, find relevant keywords, and sort your cards in an instant. Each and every note-card can be immediately shared, commented on, or collaboratively edited, allowing you to keep all your learning organised, even when working together.

Supernotes

$ Details
freemium
Platforms
Windows Mac OSX Linux Android iOS Web
Release Date
2019 October
Startup details
Country
United Kingdom

ChainMemory features and specs

  • Cross-model memory
    Save in ChatGPT, recall in Claude, Gemini, Perplexity or Copilot
  • MCP Server
    Native integration with Claude Desktop, Cursor and any MCP client (npm)
  • Chrome Extension
    One-click save and context injection on any AI chat
  • Project Brain
    Consolidates memories into structured state: decisions, milestones, risks
  • Cryptographic Verification
    Merkle proofs + on-chain anchoring โ€” independently verifiable
  • REST API
    Full backend control with per-project API keys
  • Semantic Search
    Fast semantic recall across all your memories
  • Multi-Agent Support
    Claude, Cursor and GPT share one project state with attribution

Supernotes features and specs

  • Clean UI
  • Responsive Design
  • Categories
  • Importing
  • Markdown

Analysis of ChainMemory

Overall verdict

  • I don't have verified information about ChainMemory (chainmemory.ai), so I can't confirm whether it's good or reliable. I don't want to fabricate details about a product I have no factual basis forโ€”please verify through official sources, user reviews, and independent research before drawing conclusions.

Why this product is good

  • I lack verified data on this specific product's features, performance, or user feedback
  • No independent reviews or benchmarks are available to me for this service
  • I cannot confirm the legitimacy, pricing, or claims made by chainmemory.ai
  • Making up details would be misleading rather than helpful

Recommended for

  • Anyone considering this product should first check the official website for documentation and pricing
  • Look for third-party reviews, community discussions, or case studies before committing
  • Consider reaching out to the company directly for demos, references, or trial access
  • Consult recent tech news or comparison articles if this is a newer or niche tool

Analysis of Supernotes

Overall verdict

  • Yes, Supernotes is considered a good application for individuals and teams looking for a streamlined and collaborative note-taking experience.

Why this product is good

  • Supernotes is well-regarded for its minimalist and intuitive interface, which supports efficient note-taking and collaboration. The platform allows for quick creation and organization of notes using a card-based system, promoting better information retention and accessibility. Real-time collaboration and markdown support are additional features that users find beneficial.

Recommended for

  • Students who need a platform for organizing class notes.
  • Professionals looking for a collaborative note-taking tool for team projects.
  • Individuals who prefer a clean and efficient interface for personal note management.

ChainMemory videos

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Supernotes videos

Supernotes | The new collaborative note-taking app

Category Popularity

0-100% (relative to ChainMemory and Supernotes)
Developer Tools
100 100%
0% 0
Productivity
6 6%
94% 94
AI
100 100%
0% 0
Note Taking
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, Supernotes seems to be more popular. It has been mentiond 22 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

ChainMemory mentions (0)

We have not tracked any mentions of ChainMemory yet. Tracking of ChainMemory recommendations started around Jul 2026.

Supernotes mentions (22)

  • SN Pro โ€“ a free, open-source font designed for Markdown
    Hey everyone, OP (Tobias) here. We're excited to release SN Pro today, a friendly new typeface that's open source and free for both personal and commercial use. We've carefully re-designed each character, improving support for Markdown and ligatures. For a detailed breakdown of our design process, check out the link [1]. Throughout the development of our app[2] over the past few years, my co-founder Connor and I... - Source: Hacker News / over 2 years ago
  • Supernotes App: Get 20 free cards when you sign up using referal code
    Want to try a new way to take notes? Join me on Supernotes, and use my code `xkQEcM` to get 20 extra cards after you sign up. https://supernotes.app. Source: over 3 years ago
  • Ask HN: Why are there no good note taking apps
    Note-taking app [1] founder here. This is a question I hear almost every day, and there's a good reason for that. Note-taking is personal. Everyone wants a note-taking app with just the right features for their personal workflow โ€“ whether it's open source, end-to-end encrypted, has handwriting support etc. That's also one of the reasons why the note-taking app and personal knowledge management app market is so... - Source: Hacker News / about 4 years ago
  • Stripe Open Sources Markdoc
    For my startup[1] which is built around Markdown notecards we've been using markdown-it for Markdown parsing and so far I've written a couple of extensions for it and haven't had many issues. [1] https://supernotes.app. - Source: Hacker News / over 4 years ago
  • Inkdrop: Organizing your Markdown notes made simple
    Let's add https://supernotes.app/ to the list right away. :p. - Source: Hacker News / over 4 years ago
View more

What are some alternatives?

When comparing ChainMemory and Supernotes, you can also consider the following products

Mem0 - Your private, local memory layer for all AI tools

Notion - All-in-one workspace. One tool for your whole team. Write, plan, and get organized.

Agentmemory - Persistent memory for Claude Code, Codex & coding agents

Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.

Memori - Persistent memory from agent trace, not just conversation

Obsidian.md - A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.