Your second brain,
with an AI co-thinker.
NeuralFlow is a calm, local-first thinking app — plain markdown on your disk, with an AI that reads alongside you, finds the threads you missed, and helps you write the piece that’s been rattling around in your head.
Plain markdown · macOS · Free forever
Another morning where the only thing I could think about was leaving. Two years in and the work is good, but it isn’t mine.
What keeps tripping me up: I’m not afraid of the income drop, I’m afraid of the quiet…
You’ve circled “the quiet” in three entries this month. Worth connecting this to your note on [[identity after work]]?
What you get
A quiet place to think, with help when you want it
NeuralFlow isn’t a chatbot with a notes tab bolted on. It’s a proper writing app that happens to have a thoughtful reader looking over your shoulder.
Plain markdown on your disk
Every note is a .md file in a folder you pick. Open them in any editor, grep them, back them up, throw NeuralFlow away tomorrow — your writing is still yours.
Morning Coffee
A daily brief across yesterday’s notes — loose ends, themes emerging, questions you left hanging. Fifteen seconds to catch up with yourself.
Thought River
A calm, chronological lane of everything you captured — voice notes, snippets, half-thoughts — so ideas don’t vanish into a file tree.
Kanban, in plain markdown
Drop a kanban-plugin: basic note into your Atlas and it opens as a board — columns as ## headings, cards as task checkboxes. Reads the same markdown format used by the popular community Kanban plugin for Obsidian.
MCP server built in
Your Atlas is a Model Context Protocol server. Claude Desktop, Claude Code, and any MCP-aware tool can read and write with your permission — no copy-paste.
Story Mode
Point it at a tag, a week, or a question. It stitches your scattered notes into a first draft you can actually edit — with citations back to the source.
Bring your own model
Use our managed AI on Plus, or plug in your own Anthropic key on Basic. Either way the prompts live in your Atlas — no black box.
How it works
Capture · surface · think
Three small habits replace a whole afternoon of “organizing your notes.” You keep writing; NeuralFlow keeps the threads for you.
Capture, don’t curate
Keyboard shortcut, voice, or the menu bar — get the thought out of your head in seconds. NeuralFlow handles filing later.
Let it surface in the River
Every snippet, note, and fragment flows into one chronological view. No folders to tend, no graph to decode — just your thinking, in order.
Think alongside the co-thinker
Ask for a Morning Coffee brief, kick off a Story Mode draft, or let it flag patterns you’ve been circling. Always with citations, never in a vacuum.
The co-thinker
AI that reads alongside you, not at you
The co-thinker never speaks first. When you ask, it reads your actual notes — never a scraped pile of strangers’ writing — and hands back something you can edit.
A 15-second brief on yesterday’s thinking
Every morning, NeuralFlow reads what you captured across the last day or two and hands you a short brief — the themes, the loose ends, the questions worth sitting with. No dashboards, no unread counts.
You returned twice to the idea of leaving the agency. You left a question unanswered about your runway. You saved two links on “post-work identity” but didn’t write on either. Suggested first move: pick one of those links and paste what you think is true.
Pricing
Honest tiers. No enterprise dance.
The local app stays free forever. Sync and AI are a flat monthly fee — no seats, no overages, no usage meter to squint at.
Free
The local editor, yours forever.
- Full local editor
- Atlas, Thought River, Story Mode
- MCP server built in
- Plain markdown on disk
- —No AI features
- —No cloud sync
Basic
Add cloud sync and bring your own AI key.
- Everything in Free
- Cloud sync across devices
- AI co-thinker with your own Anthropic key
- Priority support
Plus
Managed AI included. Nothing to wire up.
- Everything in Basic
- 25 Morning Coffee briefs / mo
- 10 Story Mode drafts / mo
- 100 voice captures / mo Soon
- No API key to manage
Enterprise
Your whole team on a shared Atlas.
3-seat minimum
Talk to us- Everything in Plus, per seat
- Shared team Atlases with roles
- SSO — Google Workspace, Okta, SAML
- Admin dashboard + audit log
- Managed AI — 3× Plus allowance per seat
- Priority support · 1-business-day SLA
Guided onboarding from $3,000
All plans include: local-first storage · MCP server · cancel anytime · your notes travel with you
Start thinking in public
with yourself.
Download NeuralFlow for macOS and try the editor today. No account needed to start. Upgrade when you want sync or the co-thinker.
macOS · Apple Silicon & Intel · Free forever