ThinkerNotes keeps what you took from every book, podcast, customer call and mistake, in your own words. Then it brings it back the moment it's relevant again, in the app and inside the AI assistant you already use.
Free for your first 100 notes. No credit card required.
Note · From a book, last year
Related ideas
People don't buy the cheapest option. They buy the one they can most easily justify.
Most people can't, and it isn't a memory problem. Running a business is one long crash course, and nothing you learn in it has anywhere to go.
So three months later you can name the book and not much else, and you end up paying for the same lesson twice.
It comes back on its own
Every other notes app waits for you to remember to look. While you're writing about this week's problem, ThinkerNotes puts what you worked out last year right next to it, so you build on your own thinking instead of starting over.
Related ideas
Consistency is a distribution strategy. Showing up weekly beats one perfect launch.
Works inside Claude and ChatGPT
Connect ThinkerNotes to the assistant you already use, and it answers from what you actually concluded instead of handing you the internet's average opinion.
It takes a minute from your assistant's own settings, and after that there's nothing to copy across.
The assistant can search what you've written, but it can never add to your notes or change them.
Ask which questions you haven't answered yet on a subject, and pick up where you left off.
It works with Claude, ChatGPT and any other assistant that supports MCP. See how to connect it
Your open questions
End a note with a question mark and it stays open until you write the note that answers it. When a thought keeps going you follow up on it, so you can always see how you got from the first hunch to what you decided to test.
A subject keeps everything about one thing you're learning, like pricing, in one place, with the book, the podcast and what your customers told you side by side.
How it works
1
One line, however it comes out. There's no title to think of, no folder to pick and nothing to decide.
2
Cut it down to the point you actually want to make. It takes a minute, and it's the part that makes the idea stick.
3
ThinkerNotes shows you the older notes it relates to and you link the ones that belong. From then on, it comes back whenever it's relevant.
Niklas Luhmann was a sociologist who kept one idea per index card, in his own words, and linked every card by hand to the ones it related to. Over thirty years that box helped him publish more than 70 books, and he gave it the credit.
What it cost him was decades of filing. That part is automatic now, and the writing stays yours.
Pricing
Your first 100 notes are free. When you outgrow that, Pro takes the limit away and adds the things that make a big pile of notes easy to use.
Free
$0
Pro
$12.99 per month
Upgrade from inside the app whenever you're ready.
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You're going to learn something valuable this week. The only question is whether you still have it in March.
Get started freeFree for your first 100 notes. No credit card required.