Think clearly.Focus deeply.Remember everything.
Brain is a calm productivity space — tasks, a day and week planner, habits, journal, notes and books in one workspace. An AI weekly review reflects on your week, and you can connect your own AI to your data. No noise, no feeds.
- 12 modules
- EN + ES
- AI weekly review
- Connect your AI
Draft the Q2 brief for Aurora
Project · Aurora · 24m
Reply to Helena re: design review
Today · 09:40
Finish reading Anti-Fragile · ch. 7
Reading · 22m
Plan the week — Sunday review
Habit · weekly
Your data
Never sold, never used to train models.
EN + ES
Switch languages mid-session, one click.
PWA
Install like an app. Works offline.
Made by
One person, quietly, in public.
One workspace for the inputs that matter
Each module does one thing well — and they all share a single, searchable mind.
- Book noteAnti-Fragile · ch. 7 — Optionality
- TaskFinish reading ch. 7 (22m left)
- NotebookReading · Taleb · margin notes
One palette for everything
⌘K opens search across tasks, notes, books, projects and navigation. The whole brain, one keystroke away.
A steady, focused week.
You closed the pitch deck and kept every morning habit.
Mood held steady — your best stretch this month.
AI weekly review
A private reflection across your tasks, habits, mood and goals — written for you every week, never a feed.
Day & week planner
Block time on a calendar and link events to the tasks and habits they move forward.
- Outline pitch deck
- Review pull request #284
- Write 200 words
- Walk · 30 min
Tasks & projects
Capture in seconds, organize when you're ready. Today, week, upcoming. Nested projects, due dates, priorities.
Habits
Daily or weekly, on a calm grid. Streaks that don't shame, just remind.
Clients
Workouts
Recipes
Build your own
Design custom collections with typed fields — clients, workouts, recipes, anything you track.
Focus · Set 02 / 04
Outline pitch deck
Total today · 1h 24m
Pomodoro focus
A timer that keeps running while you switch modules. Bind a task to a session, watch streaks build.
Notes & notebooks
Rich-text notes inside nested notebooks. Search everything in one keystroke.
12 reading · 47 read
Reading life
Want · Reading · Read · Abandoned, plus one reflective note per book. The thoughts that stay.
Capture. Focus. Reflect.
Three motions, repeated. No methodology to learn, no system to maintain.
- Capture
Drop it in.
Anything you think — title only — drops straight into the inbox. No project, no tag, no decision.
Inbox · just now
"Email Helena about the deck" — written, saved, gone from your head.
- Focus
Pick one. Start.
Choose what matters, start a pomodoro, work in silence. The timer floats across the app, never in the way.
Pomodoro · 22 min left
Outline pitch deck · Set 02 of 04 · room is quiet now.
- Reflect
Look back, calmly.
Streaks, kept habits and book notes wait quietly for the moment you actually want to look back.
Sunday · weekly review
11 of 14 habits kept · 6h 12m focused · 1 book finished.
Free for now. Honest later.
Use everything Brain does today, free. If we ever charge, it's for new things — not for what you already have.
Personal
Everything that's live today
- The full core workspace, no limits
- Tasks, planner, goals, journal & notes
- Object Builder + connect your own AI
- Light + dark, English + Spanish
- Installable PWA, cloud sync
Pro
Everything, as it grows
- Everything in Personal
- AI weekly review
- Habits, books & reading notes
- Encrypted backups
- Priority support
Lifetime
Pay once. Use forever.
- Everything in Pro, forever
- Lock today's price
- All future modules
- Founder badge
- Direct line to the maker
What you have today, you keep. No card on file. Cancel exists, just in case.
Honest pricing · No dark patterns
Things people actually ask.
Quick, honest answers about the product, your data and what we won't do.
Is it really free?
Yes. Everything that exists in Brain today is free, with no cards required. Paid tiers will only ever cover new capabilities — not paywall what's already yours.
Where is my data?
Your account and content live in MongoDB on infrastructure we control. You can export or delete everything at any time. We don't sell, share, or train models on your data.
How does the AI work — is my data safe?
Brain includes an optional AI weekly review, and you can connect your own AI assistant to read and update your data. It's opt-in, and we never sell your data or use it to train models.
Does it work offline?
Yes. Brain is a PWA — install it on your phone or desktop and the app shell stays available offline. Mutations sync when you're back online (rolling out).
Is there a mobile app?
Install Brain from your browser as a Progressive Web App. It gets a home-screen icon, full-screen launch, and works just like a native app. No app store required.
What languages are supported?
English and Spanish, with a one-click switch. We'll add more if the demand is there.
Can I import from another app?
Not yet. Importers for Notion, Todoist and Obsidian are on the roadmap. In the meantime, the capture flow is fast enough to start fresh in an afternoon.
How do I delete my account?
From Settings → Account → Delete. Your user, todos, notes, books and everything else are removed permanently within minutes.
Bring the noise down. Get clear.
Free forever. No card. You'll be inside in under twenty seconds.
Price
$0, forever
Card
Never asked
Setup
Under a minute
Delete
One click, full export