Your second brain, with snacks
Capture everything.
Forget nothing.
Smile a little.
Cortex catches your ideas the second they happen, then quietly connects them to everything else you’ve ever written. No folders. No stress.
No credit card. No corkboard required (but encouraged).
All the brain, none of the clutter
Four habits that quietly make you sharper.
Jot it down, fast
A new note is one tap away — capture the thought before it slips away, on any device.
Notes that find each other
Mention something once and Cortex quietly draws the line to every related note you've written.
Find it, even half-remembered
Search by vibe, not just keywords. Cortex gets what you mean, even when you don't say it exactly.
A little AI help
Friendly summaries and gentle nudges, never in your way, always optional.
How it works, in three beats
Catch the thought
Open Cortex, type or talk, done.
Watch it connect
Cortex links it to your other notes automatically.
Forget on purpose
Trust it's saved — and findable — whenever you need it.
See your thinking, not just your files.
Every linked note becomes a little dot on your own constellation. Zoom out anytime to see how today’s idea connects to last year’s notebook.
Real notes, from real overthinkers
“It genuinely feels like my notes app has a personality. In a good way!”
Jules P. · Illustrator
“I finally stopped losing sticky notes — Cortex is just... where they live now.”
Renee O. · Teacher
“The connections it makes are eerily on point. My brain, but tidier.”
Sam W. · Podcaster
Pricing that won’t make you frown
Me, but more
For your daily-note habit.
$8/mo
- Everything in Free
- Unlimited devices
- AI summaries
Quick answers
Is Cortex actually fun to use?+
We hope so! Cortex keeps the playful bits purely cosmetic — under the hood it's the same serious linking and recall engine as our other tiers.
Can I make it look less colorful?+
Totally — every Cortex theme, including this one, is just a skin. Switch anytime from Settings, no data changes.
What happens to my sticky notes if I cancel?+
You can export everything as Markdown at any time, free plan included. Your notes are always yours.
Go build that second brain.
Free forever, genuinely. Bring your notes, your sticky habit, and your overthinking — we’ve got room for all of it.
Start for free