Saved everywhere. Remembered nowhere.
Lectures, papers, podcasts, stray tabs — you save more than anyone could keep track of. Chunk is one place where it all connects: notes that link themselves, flashcards from anything, answers with citations from your own sources, and research that refreshes itself while you sleep.
One place where it all connects.
Notes that link themselves. Answers with citations. Flashcards from anything. Research that refreshes itself overnight.
Entanglement — Lecture 4
Two particles share one state, so a [[Bell test]] on either reveals both — no signal, just shared [[Superposition]].
↩ linked from 3 notes
Answered from your sources
Bell’s results rule out local hidden variables — the correlations exceed the classical bound12.
Flashcard · 12 of 24
Q · What breaks Bell’s inequality?
tap to flip🌙 Overnight digest
3 new papers on quantum error correction → filed to Physics 301
while you slept · 6:00 AM
How it works
Save it once. Use it forever.
No system to maintain. No empty dashboard to feel guilty about. Three steps, and the third one runs itself.
Capture
Clip a page from Chrome. Forward an email. Share from your phone mid-scroll. Everything lands in one Inbox, already titled and tagged.
Connect
Type [[double brackets]] and notes link themselves. Backlinks surface every place an idea appears. Collections give each project one shelf.
Use
Ask a question, get an answer with citations from your own sources. Turn a lecture into flashcards. Let automations refresh your research overnight.
Step 01 · Capture
If you can see it, you can save it.
Clip a page from Chrome. Forward an email. Share from your phone mid-scroll. It all lands in one Inbox, where AI titles and tags each capture and suggests where it belongs — so turning it into a note or filing it in a collection is one quick tap, not an afternoon.
Inbox
4 newAI suggests → 🗂️ Quantum Physics 101
Step 02 · Connect
Notes that find each other.
Type [[double brackets]] and your notes start linking up on their own. Backlinks show you every place an idea appears. And the graph view? That’s your whole semester, drawn as a map.
Explore Notes →[[Entanglement]]
linked from 4 notes
Quantum Physics 101
5 sourcesAsk this collection
Collections
One home for every project.
Give each project its own shelf — PDFs, links, notes, reports, conversations, all in one place. Ask a question and Chunk answers from everything on the shelf at once. No more “which app did I save that in?”
Explore Collections →Step 03 · UsePro
Paste a lecture. Get a study kit.
Drop in a YouTube video, a podcast, or a 300-page PDF. Minutes later you’ve got flashcards, a quiz, a study guide, and a concept map. You bring the source — Chunk does the busywork.
Explore Artifacts →Quiz
10 questions, graded
Study guide
Everything that matters
Concept map
Ideas, drawn as a web
AI chat & research
The best AI models, on one $9.99 plan.
This isn’t a chatbot bolted onto a notes app. Chat answers from your notes, documents, and collections — and remembers what matters between sessions. And you pick which brain answers: the top models from OpenAI, Anthropic, and Google, in one app.
That’s three subscriptions’ worth of brainpower for half the price of one.
🔍 Need the full picture?
Deep Research reads dozens of sources and hands you a fully-cited report in minutes[1][2][3][4]. Receipts included.
Explore Research →Ask anything…
Claude Opus 4.8 ▾remembers: you’re studying quantum physics
3 subscriptions · $60/mo
$20.00/mo
Automations
Set it tonight. Read it tomorrow.
Every system you've ever built went stale the week you stopped feeding it. This one feeds itself.
Standing research that reports only what changed. Watchers that catch the price drop. Agents that draft the brief while you're out. All on your schedule, all filed into your knowledge base — you just get the ping.
Explore Automations →☾ TONIGHT · WHILE YOU SLEEP
2:14 AM · RESEARCH
Solid-state batteries
3 new findings, cited
3:02 AM · WATCHER
Flight LHR→NRT
dropped $118 below your number
4:26 AM · AGENT
Competitor brief
drafted & appended to your log
5:11 AM · DIGEST
Inbox themes
☾ nothing new — stayed quiet
☀ 7:30 AM
3 updates waiting. 0 things you had to remember.
Think in connected pieces.
Knowledge isn’t a pile of files — it’s pieces that fit together. A lecture clicks with a paper. A stray note finishes last week’s thought. Chunk is built on one idea: when your pieces connect, you don’t just store what you learn. You understand it.
Start free. Upgrade when it clicks.
Poke around free for as long as you like. When you’re ready, the yearly plan starts with a 3-day free trial — cancel anytime.
Free · for getting started
$0
- Notes, backlinks & knowledge graph
- Fast everyday AI chat
- 1 collection
- Automations starter — 1 research digest, 3 page watchers
- Export all your data as Markdown
Pro · for getting serious
$69.99/yr
- Best models from OpenAI, Anthropic & Google (GPT-5.5, Claude Opus 4.8, Gemini 3.1 Pro)
- Full Deep Research with citations
- Full Automations — research, watchers, agent tasks & digests
- Unlimited collections
- Instant artifacts from video, audio & PDFs
- Image generation
- AI memory
- Priority support
Cancel anytime. Your notes stay yours, free or not.
Your notes are yours. Full stop.
We don’t sell your data. We don’t train AI on your notes. What Chunk remembers, it remembers for you — never for ads. Sign in with Apple and keep your inbox out of it. Chunk makes money one way — when you love it enough to go Pro.
And there’s no lock-in: every account can export everything — notes, documents, conversations — at any time, as clean Markdown files any AI tool can read.
Your desk, wherever you are.
Start a note on your iPhone in the library. Build on it from your Mac at midnight. Walk through your knowledge graph on Vision Pro, because honestly, why not. One workspace, synced everywhere.
It plays nicely with the tools you already have — turn a collection into a Gamma deck, or connect your Notion and build on the notes you already wrote.
+ more connectors on the way · requires an account with each connected app
Ready to see it all connect?
Saved everywhere, remembered nowhere ends today. Your lectures, papers, and 2 a.m. ideas are waiting to meet each other.
Free to start · 3-day Pro trial · cancel anytime