Your AI second brain

Your AI second brain. It never forgets. All in WhatsApp.

Offload your mind to Bai — ideas, tasks, reminders, the lot.
It captures everything you say and brings it back the moment you need it.

Try Bai Go free → Then ~~$19~~ $15/month

No app to open. Nothing to build. You just talk.

"Hey Bai, how's the restaurant p"

→ ...

One brain · Two windows

Talk to it on WhatsApp. Open Space when you want to think.

WhatsApp is enough — talk, forward, ask, recall. Space is the same brain on a bigger canvas: same memory, more room to think.

A WhatsApp / self-sufficient · save, ask, get answers

9:41

Bai OS

…heads-up: María's still waiting on your review of the v2 wireframes. Last sync (Aug 12) flagged:

Block Read more

3:38 PM

0:05✓✓

Got it — pulling up your Atlas thread . Here's where things stand for tomorrow's sync:

[Atlas · Brief for tomorrow's sync with María]

app.baios.ai/atlas/brief-aug-25

### Status check:

Last sync (Aug 12): María flagged 2 blockers; you owed revised pricing.
Pending on you: Pricing memo (overdue 9 days) + timeline-shift confirmation.
Pending on María: Feedback on the v2 wireframes you sent Aug 14.

Fresh from your WhatsApp thread

2 items · updated 2 min ago

Project · Brief Atlas Tomorrow 10am MARÍA · ATLAS

Atlas · Brief for tomorrow's sync with María

Last sync (Aug 12) flagged 2 blockers. Pricing memo overdue 9 days. María waiting on legal review and v2 wireframe feedback.

Last sync Aug 12 12 days ago

Open items 4 2 yours · 2 hers

Overdue 9 days pricing memo

Updated · 3:40 PM · from WhatsApp Open thread →

Voice note · 0:05 3:39 PM · WhatsApp

0:05

"Hey Bai, I have the Atlas meeting with María tomorrow — give me a rundown of what's pending and what I owe her."

Bai noticed

Last time you discussed Atlas, María flagged two blockers . One's been open 9 days — want to unblock it before tomorrow's call?

A · WhatsApp Self-sufficient. That's the point. Save anything — voice notes, links, photos, receipts. Ask Bai anything back. Search, summaries, follow-ups, all in the chat. You never need to leave to make it work.

B · Space Same brain. Easier on the eyes. When you want to sit with everything — read a long article, scrub a meeting, browse what you've saved — Space gives the chat room to breathe. Same memory, more comfortable surface.

· Either, both, neither No app. No new habit. Use just WhatsApp forever — Bai works fully there. Open Space the days you want a wider view. The brain is the same on either screen; you choose where to spend the time.

What your second brain holds

Everything you'd rather not carry in your head.

You think out loud, Bai keeps it — with context, with memory, without asking twice.

📋

Projects

Tracks progress without you checking in.

💡

Ideas

Captures now, connects later.

❤️

Wellness

Remembers your habits, not just your requests.

👨‍👩‍👧

Family

Coordinates so you don't have to.

✈️

Travel

Plans around what you actually like.

💰

Money

Knows who owes you. Follows up.

…and anything else you can think of. Just say it.

Three steps · one conversation

A second brain with zero setup.

💬

You offload

Type or send a voice note — ideas, tasks, anything on your mind — straight into WhatsApp.

🧠

Bai remembers

It organizes and ties each thing to what came before, and keeps it for whenever you need it.

✅

It comes back

Recalled at the right moment — sometimes before you even ask. You relax; it remembers.

You offload. Bai remembers.
No onboarding. No dashboard. No system to build first.

What people say

Carlos M.

entrepreneur

"I stopped trying to hold everything in my head."

Laura S.

designer

"I capture ideas while walking and they're already sorted when I get back. Nothing slips anymore."

Diego R.

student

"My whole semester lives in Bai and I never set it up. It just remembered what mattered, in time."

Agent reactive

Gets it done, right when you need it.

Brain proactive

Remembers what matters and brings it back before you ask.

Pricing

Move forward without losing anything.

Prices in USD.

9 days free

Bai Go 9 days free

Your external brain on WhatsApp.

$ 15 USD/month

9 days free · then $15/month

Includes

Notes: create, search, archive, tag
Audio, images & voice transcription
Saved views, statuses & custom tags
Google Calendar — view & create events
Proactive reminders when they matter
Plenty of room for your notes, audio and files

Try Bai Go 9 days free →

Common questions

The short version.

Add Bai to your WhatsApp contacts and start texting it. Dictate ideas, send photos of receipts, audio from meetings, reminders — Bai stores them, organizes with tags, and brings them back when you need them. No new app to open; your second brain lives in the conversation you're already in all day.

No. There's nothing to build — no databases, no templates, no folders. You just talk, and Bai does the organizing and remembering. Sign in with Google, connect WhatsApp, and start offloading.

Yes. Data is encrypted in transit and at rest on Google Cloud infrastructure. We never sell or share your information, and you can export everything or request permanent deletion anytime from your portal.

Ready when you are

Stop holding it all in your head.
Start offloading.

Try Bai Go — 9 days free →

Your move.