Hjarni Notes vs DotSpark

Your AI starts from zero every conversation. Hjarni fixes that. Write a note on your phone. Ask Claude or ChatGPT about it on your laptop, and it already knows. Hjarni is a Markdown knowledge base with a built-in MCP server. Notes, folders, tags. That is the whole product. MCP is not a plugin bolted on afterwards. The app was built around it. HOW IT WORKS Save a note once. Connect Claude, ChatGPT, or any MCP client. Your AI reads your notes, follows your instructions, and writes new notes that fit your system. Stop re-explaining your stack, your customers, or your style guide at the start of every conversation. Write once. You both remember. ON YOUR IPHONE Capture a note in seconds from the New tab. Triage it later from the Inbox. Search everything you have written. Read anywhere. This is the capture and read-anywhere companion. The long editing sessions happen on the web. That is on purpose. ONE BRAIN, EVERY ASSISTANT Claude and ChatGPT each keep their own memory, and neither one shares. Hjarni sits outside both. Switch assistants, keep your context. Works with Claude, ChatGPT, Claude Code, Cursor, and anything else that speaks MCP. MEMORY YOU CAN ACTUALLY READ Assistant memory is a black box. Hjarni is not. Every note is plain Markdown you can open, search, and edit. Every change is versioned, so you can see what your AI wrote, diff it, and revert it. Export everything, any time, in a format that opens anywhere. SHARE A BRAIN WITH YOUR TEAM Team folders give everyone the same context. Your conventions, your decisions, your onboarding docs. Every teammate's AI reads the same thing, so nobody has to be the person who remembers. YOU OWN THE INSTRUCTIONS Set instructions per folder and per team. Tell your AI how to format notes, which tags to use, what tone to write in. Your AI works the way you work. SIMPLE ON PURPOSE We left features out on purpose. No databases. No kanban boards. No page builders. Hjarni is a place to write and organize. The constraint is the feature. WHO IT IS FOR Developers, teams, founders, researchers, writers, travelers. Anyone who has typed the same context into a chat window twice. HJARNI PRO Hjarni is free to use, with a limit on how many notes you can keep. Pro removes the limit and adds file attachments, imports, email capture, and folder collaborators. Pro is an auto renewing subscription, monthly or annual. Payment is charged to your Apple Account at confirmation of purchase. It renews unless you turn off auto renew at least 24 hours before the end of the current period, and your account is charged for the renewal within 24 hours before that. Manage the subscription and turn off auto renew in your Apple Account settings. Terms of Use (EULA): https://hjarni.com/terms Privacy Policy: https://hjarni.com/privacy

Build an AI that thinks like you. Everyone has the same AI. Almost no one has one that thinks like them. DotSpark turns how you think into your own intelligence, so your AI reflects your judgment, not the averaged middle everyone else settles for. General AI learns from everyone. DotSpark learns from you. The more you use it, the more your AI thinks like you, and the more your original thinking stays distinctly yours. WHAT YOU CAN DO Build your own intelligence Train your AI with your thinking, not piles of notes or context documents. DotSpark distills how you actually reason into a compact, refined intelligence that is unmistakably yours. View your connected thinking Watch your ideas link into a living graph, then read them through different lenses like a branching tree or a book. Each one sparks meaningful insight a single view would miss. Ask your own intelligence Everyone prompting the same models drifts toward the same answers. Ask DotSpark and the response is shaped by how you think, so it stays distinctly yours instead of a generic AI average. Analyse your thinking identity Discover your thinking archetype, your signature strengths, and your Original Thinking score. It is a clear measure of how much of your thinking stays truly your own as you lean on AI. WHO IT'S FOR Mid to senior professionals and leaders who use AI every day. In a world where everyone has the same AI, the ones who stay irreplaceable keep a distinctive mind. DotSpark helps you build an AI that thinks like you and turn how you think into your biggest professional edge. Build an AI that thinks like you. Keep your intelligence distinctly yours.