Stop letting curiosity compete with focus.
Alan Turing
Assumes you understand
Alan Turing was a British mathematician, logician, and wartime codebreaker whose work helped define what computers could be. He is best known for the idea of the “Turing machine,” a theoretical model that explained how computation works in a precise mathematical way. That concept became one of the foundations of computer science.
During World War II, Turing played a major role in breaking German codes, especially through his work at Bletchley Park. His efforts helped the Allies gain crucial intelligence, and his wartime work showed how abstract mathematics could have real-world impact. He was also among the first to seriously ask whether machines could think.
Turing’s legacy extends into artificial intelligence, theoretical computer science, and modern cryptography. His famous test for machine intelligence remains a major reference point in AI discussions today. Although his life ended tragically early, his ideas shaped the digital age in ways that still matter.
“Turing is widely considered to be the father of theoretical computer science and artificial intelligence.”
Built for people who follow ideas, not tabs
Capture without breaking focus
A global hotkey grabs whatever text is selected in any app — a PDF, a Slack thread, a paper — and saves it instantly, along with where it came from, so you can finish the thought you were already having.
- Works from any application, no copy-paste ritual
- Saves the source app and window title automatically
- Never pulls you out of what you were doing
“The Bitter Lesson” — richardsutton.net
Research happens while you keep reading
Every capture is researched in the background: what it is, a synopsis, and the concepts it assumes you already know — with real citations, not a guess.
- Background web research on every capture
- Synopsis, type, and title generated automatically
- Citations stored verbatim, never fabricated
See how your knowledge actually connects
A living graph links related notes by meaning, not folders, and threads prerequisite concepts together so you can trace any idea back to its foundations.
- Similarity edges from semantic embeddings
- Prerequisite threads you can follow in order
- One map for today's reading and everything before it
Understanding isn't the same as reading
Notes move from surface to skimmed to resolved only when you can explain them in your own words — a short, honest quiz keeps you from mistaking exposure for understanding.
- Depth tracked per note: surface, skimmed, resolved
- Resolution requires passing a comprehension check
- Debt view shows exactly what you still owe yourself
Why does the author call attention “a budget” rather than a trait?
Anything, Everything, Everywhere
Firefox
YouTube
Notion
Slack
Discord
WhatsApp
Mail
Gmail
GitHub
Reddit
X
OpenAI
Anthropic
GeminiAnd anything else on your Mac you can select or screenshot.
From tangent to understanding
Select
Highlight anything, anywhere on your Mac — an article, a paper, a message.
Capture
Hit the hotkey. It's saved instantly with full source context, no interruption.
Connect
In the background, it's researched, summarized, and linked to what you already know.
Understand
Come back later, follow the thread, and prove — in your own words — that it stuck.
Pricing
Free trial
7 days
- 10 captures
- 5 chat messages
- Card required to start
Includes:
- Access to everything
After 7 days, automatically converts to Light at $5.99/mo unless you cancel before the trial ends.
Light
$5.99/mo
- 100 captures per month
- 15 chat messages per month
Includes:
- Knowledge graph
- Session tree
- Knowledge debt
- AI synopsis
- AI chat
- Knowledge threads
Pro
$14.99/mo
- 400 captures per month
- 60 chat messages per month
Includes:
- Knowledge graph
- Session tree
- Knowledge debt
- AI synopsis
- AI chat
- Knowledge threads
Polymath
$29.99/mo
- 1,000 captures per month
- 150 chat messages per month
Includes:
- Knowledge graph
- Session tree
- Knowledge debt
- AI synopsis
- AI chat
- Knowledge threads
Cancel anytime from Settings in the app — self-serve and instant. A full refund is available within 3 days of any charge.
From the people testing it daily
“I stopped losing an afternoon to research rabbit holes. I capture the tangent and get straight back to what I was doing.”
“The graph is the first thing that's made my reading feel like a map instead of a pile of open tabs.”
“The quiz step is annoying in the best possible way. It's the first tool that's called my bluff on ‘understanding’ something.”
“Every client research rabbit hole used to live in twelve browser tabs. Now it lives in one graph I can actually search.”
“The prerequisite links are the sneaky-good feature. It quietly tells me what I'm missing before I waste an hour confused.”
Give your curiosity somewhere to land.
Tangnt is currently in private testing on macOS. Join the waitlist to get early access as it opens up.
No spam. One email when accounts open up.