A second brain for iOS & Android — July 21, 2026
Just say it.
One capture button for your whole life. Speak your mind — Just turns it into tasks, habits and notes, filed where they belong, before you’ve left the moment.
Smart capture
Filing is why your last system died.
Every notes app quietly hires you as its librarian. Decide the category, name the project, set the date — twelve times a day. So you stop. Just has exactly one entry point, and the sorting isn’t your job.
- 01
You speak. Or type.
One button in the app, or straight from your phone’s share sheet. No “where does this go?” — that question is retired.
- 02
It reads what you meant.
One thought or five tangled together — the classifier pulls them apart and understands each one on its own.
- 03
Everything files itself.
Tasks get dates. Habits get a cadence. Notes land in your Memory Hub. You get to keep walking.
Vision Board
Today answers to your life.
Every checked box rolls upward — day into week, month into year, year into the life you said you wanted. Five horizons, one glance, no spreadsheet.
Progress is computed on your phone — the view works offline too.
Memory Hub
Ask it like you’d ask a friend.
Everything you capture becomes searchable by meaning, not by the exact words you used. You remember the gist. Just remembers the rest.
Offline-first
No signal. Still works.
Just is offline-first the unfashionable way: your data lives on your phone and syncs when you’re back. Planes, basements, mountain villages — everything you’ve captured stays at hand. Only the AI routing waits politely for a network.
In the box on day one
- 01Smart voice & text capture
- 02Vision Board with five horizons
- 03Memory Hub with semantic search
- 04Browse Buddy — a curated starter library
- 05Reminders & notifications
- 06Sign in with Google or Apple
App Store · Google Play
Your second brain arrives July 21.
One email when it’s live. Nothing else, ever.
No newsletter. No “journey”. One email on launch day.
Saved. Talk to you on the 21st.