# Hjarni Notes: AI Memory — Second brain for Claude & GPT > AI memory and knowledge base for consistent AI assistant context. (iPhone/iPad app by evert van den bruel.) - Source: https://appshunter.io/ios/app/hjarni-notes-ai-memory/id6761733903 (this page in markdown: same URL + `.md`) - Developer: [evert van den bruel](https://appshunter.io/developer/1054483967) - Category: Productivity, Developer Tools - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 16.0 · 4 MB - Released: 2026-08-17 - Data updated: 2026-09-30 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/hjarni-notes-ai-memory/id6761733903/reviews.md ## What is Hjarni Notes? 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 ## Key features - Persistent AI memory - Markdown knowledge base - Team collaboration - Customizable AI instructions - Plain text notes - Versioned note history ## Frequently asked questions about Hjarni Notes ### What is Hjarni Notes? Hjarni Notes is a productivity app designed to act as a persistent memory for AI assistants like Claude and ChatGPT. It allows users to save notes in Markdown format that AI models can access, ensuring consistent context across conversations. ### How does Hjarni Notes work with AI? You write notes in Hjarni, and then connect your AI assistants (like Claude or ChatGPT) to it. The AI can then read, understand, and utilize your notes to provide more informed responses without needing repeated context. ### Can I use Hjarni Notes with multiple AI assistants? Yes, Hjarni Notes is designed to work with various AI assistants including Claude, ChatGPT, Claude Code, Cursor, and any other client that supports the MCP protocol. This allows you to maintain a single knowledge base across different AI tools. ### Is Hjarni Notes free to use? Hjarni Notes offers a free tier with a limit on the number of notes you can store. A Pro subscription removes this limit and unlocks additional features like file attachments and email capture. ### What are the benefits of Hjarni Pro? Hjarni Pro removes the note limit, adds file attachments, enables imports, includes email capture functionality, and allows for folder collaboration with teammates. It is available as a monthly or annual subscription. ### How do I manage my Hjarni Pro subscription? Your Hjarni Pro subscription is managed through your Apple Account settings. You can turn off auto-renewal at least 24 hours before the current period ends to avoid further charges. ### What devices does Hjarni Notes support? Hjarni Notes is available on iPhone and iPad, serving as a capture and read-anywhere companion. Longer editing sessions are intended to be done on the web. ### Is Hjarni Notes suitable for teams? Yes, Hjarni Notes supports team collaboration through shared folders. This ensures that all team members' AI assistants have access to the same context, conventions, and onboarding documentation. ## Version history (last 5 releases) ### 1.8.0 — 2026-09-25 Share a public link straight from the app. Once a folder or note has a public link, Share link opens the share sheet, so you can send it to Messages, Mail or anywhere else. Moving around Settings is simpler: switching between General, Security, Billing and Connections no longer piles up screens behind the back button, and General always takes you back to the start. Fixed a tab that could come back as a blank page after the app had been in the background for a while. ### 1.7.0 — 2026-09-24 Hjarni is now in the share sheet. Share a page from Safari and the article arrives in a new note as Markdown, with the page title and the link saved as the source. Select part of the page first and only the selection comes across. From any other app, share a link or a passage of text and it opens a prefilled note. Nothing is saved until you press Save, so a mis-tap costs nothing. Signed out? Sign in and the share is waiting for you. ### 1.6.0 — 2026-09-16 Sign in with a passkey. Use Face ID, Touch ID or your fingerprint instead of a password. Add one in Settings under Passkeys, then tap "Sign in with a passkey" on the sign-in screen. If you have two-factor authentication on, a passkey sign-in doesn't ask for the code. Also: bug fixes and small improvements. ### 1.5.0 — 2026-09-09 You can now subscribe to Hjarni Pro directly in the app. Pro gives you unlimited notes, file attachments, imports, shared folders and email capture, on a monthly or yearly plan. Manage or cancel any time in your App Store account settings. ### 1.3.1 — 2026-09-05 Tabs stay current. Switch back to a tab and it refreshes, so notes you write in one place show up in the others straight away. The New tab always starts blank. No more landing on the last note you wrote. More actions where you need them. Share a note, confirm it is still current, and export a folder, all from the nav bar. Folders are easier to live in. Deleting a folder is now recoverable and takes its contents with it, folder listings sort on a phone, and the Folders screen tells you when it is empty. Email capture. Send mail to an address and it becomes a note, on any Pro account. Faster. Search, the note graph, and the slowest screens all got meaningfully quicker. ## Apps similar to Hjarni Notes | App | Rating | Price | Category | | --- | --- | --- | --- | | [Prompto: Best AI prompts](https://appshunter.io/ios/app/prompto-best-ai-prompts/id6762163567) | — | Free | Productivity | | [DotSpark](https://appshunter.io/ios/app/dotspark/id6762565321) | 1.5 (2) | Free | Productivity | | [Paperless Go for Paperless-ngx](https://appshunter.io/ios/app/paperless-go-for-paperless-ngx/id6761344596) | — | $0.99 | Productivity | | [Afterpage: Go Paperless](https://appshunter.io/ios/app/afterpage-go-paperless/id6754659458) | — | Free | Productivity | | [quicklook multitasking](https://appshunter.io/ios/app/quicklook-multitasking/id1615634427) | 5.0 (3) | $3.99 | Productivity | | [LocalScribe: Voice to Text](https://appshunter.io/ios/app/localscribe-voice-to-text/id6769321460) | — | Free | Productivity | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-30.*