Mentis
Write notes, essays, and plans. Mentis names your writing, finds it by meaning, and helps you bring it together. No folder tree to maintain.
macOS 14+
An essay, a plan, a daily note. Bring them together when you need the bigger picture.
Start a note or a whole essay. Mentis saves it, gives it a name when there’s enough context, and finds related writing.
No folder tree to maintain. No title to think up first. Your original words stay yours.
“A familiar place asks less of us. We know where the light falls, which chair is comfortable, and when the room goes quiet.”
Search thoughts, passages, and workspaces using your own words. You don’t need the title or the language you originally wrote in.
“Somewhere to sit and read”
“Leave room in the budget for a reading table by the window.”
Bring a project into view. Mentis suggests related writing; you choose what belongs. Preview and arrange thoughts on the canvas, then open one to read or edit.
A note about the shop’s atmosphere belongs beside the opening plan. Add the suggestion, or dismiss it.
Read a generated overview of a longer thought. Open the original when you want to go deeper.
The same writing can appear in several workspaces. Changes made in the thought stay up to date wherever you use it.
Draft an essay. Make a plan. Keep the references and next steps right where you’re writing.
Type / for headings, checklists, quotes, and tables. Give a quick note or a long draft the structure it needs.
Type @ to find and link another thought without leaving the editor.
Add a date with @, and turn on a reminder when you need a nudge.
Copy and paste Markdown, or import a Notion export. Links between imported pages keep working inside Mentis.
Your writing saves locally, even offline. Sign in with Google to sync your thoughts and workspaces across Macs.
Mentis 1.4.2 requires macOS 14 or later. One installer includes Apple silicon and Intel builds. This is an early release; installation and updating have been tested on the development Mac. Second-Mac and Intel hardware testing are still pending.
The app is not notarized by Apple, so macOS may require approval before the first launch. See installation instructions.
Future releases appear inside Mentis. Choose when to install, then restart when you’re ready or finish on the next normal quit.
Connect your own OpenAI API key in Settings to use automatic names, search by meaning, related-writing suggestions, and generated overviews. These features require internet access and send writing to OpenAI for processing. Provider usage is billed separately.
Writing, recent items, saved workspaces, and manual connections work without AI. Generated names and overviews don’t replace your original words.
How your data is handledNo account is needed to write locally. Sign in with Google if you want to sync writing and workspaces between Macs. You can also choose a folder for automatic local backups.
What you write, what belongs together, and where it leads stay yours.
AI features use your OpenAI key, billed separately. How it works