A new chapter for TheBrain

Your whole brain.Free, forever.

Unlimited thoughts. Unlimited brains. Every feature. Every platform. No expiration, no account required.

DownloadWindows · Mac · Linux · iOS · Android · Web

What's included in free

The complete app.All features included.

Everything you need to build, navigate, and grow a real knowledge graph on your own machine. Yours forever.

$0forever

Download

Personal and commercial use. No account required.

Everything included:

Unlimited thoughts, links, and brains
Unlimited local notes, images, file attachments, and web links
All features — advanced views, API access, and more
Unlimited public Brains — sync and share for free
Free sync for up to 1,000 thoughts in private Brains
100 MB of synced attachment storage across all Brains (local attachments are unlimited)
Limited AI usage (small daily allowance)

When you're ready for more

Your brain, everywhere.
Thinking with you.

Sync across devices, take it on your phone, and bring Cerebro AI fully into your workflow. Optional, never required.

Save ~17%

Pro

Your brain, everywhere it goes.

$15/ month

Billed at $179 / year

Start with Pro

Includes:

Unlimited private sync
Cerebro AI usage
30 GB of online storage
One-on-one support
Web client access
Secure encrypted backup

Max

More AI. More room to think.

$20/ month

Billed at $239 / year

Start with Max

Everything in Pro, plus:

Expanded Cerebro AI usage
100 GB of online storage
Priority support
Early access to new features

TeamBrain

One brain. Your whole team.

$25per person / month

Billed at $299 per person / year

Start with TeamBrain

Everything in Max, plus:

Multi-user editing & sync
Unlimited shared brains
Audit history and usage reporting
Admin dashboard
Centralized billing

On-premises deployment available — contact sales.

Order by Phone

USA: 888-652-7529
International: +1-310-751-5000

8:00 AM – 5:00 PM Pacific. Online orders processed 24×7.

Questions about the change?

Email support@thebrain.com — we're here to help with migrations, refunds, and team transitions.

Already a customer?

We've been thinking about you.

Pro License-only customers

12 months of Pro Service, on us

Every existing Pro License customer automatically receives 12 months of Pro Service free — including sync, AI, web access, and online backup.

No action required. Your 12 months of Pro Service has been automatically added to your account.

Bought one after April 15?

License-only purchases made on or after April 15 are eligible for a full refund. Or keep your license credit and we'll give you 18 months of Pro Service free automatically.

Request refund

Existing Pro Combo subscribers

Keep your current $159/year rate

If you already subscribe to Pro Combo, you'll keep your current $159/year renewal price for Pro Service, even though the new annual price is $179/year.

Your service continues without interruption, and your lower loyalty rate stays in place as long as your subscription remains active.

Lapsed Pro Combo subscriber?

Subscribe again before October 1 and you can still pick up the loyalty rate of $159/year for Pro Service.

Enter the email on your old Pro Combo subscription. After October 1, lapsed accounts re-enter at the standard $179/year rate.

Questions, answered.

The short version of what's changing.

Is TheBrain really free?: Yes. The complete app is free for everyone, with unlimited thoughts, every feature, and no expiration. We make money when you choose to add cloud sync, expanded AI, or collaboration on top.
What changed, and why?: We retired the one-time license. The software is now free for everyone, and our paid plans focus on the things with real ongoing cost: cloud services, and Cerebro AI.
I already bought a license. Am I losing anything?: No. Your license keeps working exactly as it always has, with every feature you paid for, forever. Pro License (license-only) customers also receive 12 months of Pro Service free as a thank-you. Pro License buyers whose purchase was on or after April 15 can take a full refund or receive 18 months of Pro free. Pro Combo subscribers don't qualify for the free service credit or the refund offer, but keep their current $159/year loyalty rate going forward. Details in the section above.
What's Cerebro?: Cerebro is TheBrain's AI assistant. Unlike tools that just read your notes, Cerebro understands how your thoughts connect, surfacing the relationships across your knowledge graph that you'd otherwise miss. Free includes a daily taste. Pro and Max include full daily allowances.
Can I use TheBrain without ever paying?: Yes. The free version is genuinely complete on its own. Paid plans add things that depend on infrastructure we run for you, not on the capabilities of the app itself.
Do I need an account?: Not for the desktop app. Download and start using it without signing up. An account is only required if you choose to use our services.

Build your brain.It's yours.

Download TheBrain

v1 v2 v3 v4 v5v6v7 v8