Read it.See it.Get It.
The study companion that turns a PDF into a measurable mastery map. Built around the document, not in place of it.
Runs on the ChatGPT subscription you already pay for. No second subscription, ever.
01 · problem
The proof you cannot survive a question you haven't seen.
02 · visualizer
Concepts the page tags itself, rendered live next to the text.
03 · graph
A concept map with four scores per node, monotone non-decreasing.
04 · four tools
Chat, flashcards, quizzes, Feynman. One journal.
05 · evaluator
Mastery is four numbers and they only ever go up.
06 · install
One subscription, the one you already have.
01 · the problem
Students already have the PDF. They don't need another summary.
What they need is a way to see the parts a textbook refuses to draw, and a way to prove to themselves that they have understood. Concept by concept, not page by page.
Flashcard ratings measure recall in the moment. Mind maps measure how much you drew. Summaries measure how patient the AI was. None of these answer the only question that matters on exam day:
Would I survive a question I have not seen before?
02 · visualizer
The document tags itself with the concepts that benefit from a picture.
Up to four visualizations render in parallel as the page is read. Three.js scenes for anatomy and molecules, canvas animations for physics and chemistry, clean formulas, plotted graphs, cited sources from the literature.
2.1 Methane and Tetrahedral Geometry
Chapter 2 · Hydrocarbons, functional groups, geometry
Methane (CH4) is the simplest hydrocarbon and the prototypical example of sp3 hybridization. The carbon atom forms four equivalent sigma bonds to hydrogen atoms arranged at the vertices of a regular tetrahedron, with H–C–H bond angles of approximately 109.5 degrees and C–H bond lengths near 109 picometers. The geometry minimises electron-pair repulsion in accordance with VSEPR theory.
Methane is the principal component of natural gas and a potent greenhouse gas, with a global warming potential roughly 28 times that of carbon dioxide over a century. Its combustion follows the equation CH4 + 2 O2 → CO2 + 2 H2O, releasing approximately 890 kJ per mole.
Visualising the three-dimensional tetrahedral arrangement is essential to understanding why methane is non-polar despite the polarity of each individual C–H bond. The dipole moments cancel by symmetry, producing a molecule with no net dipole.
03 · knowledge graph
A concept map of the document, built once. Then it keeps score.
Four axes per concept
Memory, comprehension, structure, application. Each scored 0–100, monotone non-decreasing.
Built from every interaction
Chats, flashcards, quizzes and Feynman sessions feed one journal. A dedicated evaluator agent reads it end-to-end.
Map of where you actually are
Nodes sized by mastery, coloured by progress. Click any node for the four-axis breakdown plus the evaluator's note.
04 · four tools
Four ways to prove you understood it. One journal feeds them all.
Different signals across four axes of mastery. The same evaluator agent reads every one and scores accordingly.
Chat
Multi-turn, multi-thread Q&A, scoped to the document.
Flashcards
AI-generated active recall decks. Self-grade Again, Hard, Good, Easy.
Question · card 2 of 6
Why does kinetic friction not depend on the contact area?
Quizzes
Forced-choice multiple choice. One right answer, three plausible distractors. Immediate feedback.
On an inclined plane, what is true about the rope tension?
Feynman
The agent plays a curious eight-year-old. You teach. The summary tells you where the explanation held.
Curious child
But if the swing goes faster, why doesn't it take less time to come back?
05 · the evaluator
Mastery is four numbers. They only ever go up.
A dedicated agent reads your full interaction journal after every completed session and scores each concept along four axes. A monotone clamp prevents accidental regressions. The four numbers are the difference between a study app and a measurement instrument.
Memory
82
Recall over time.
Comprehension
74
Understanding in your own words.
Structure
61
How concepts connect.
Application
48
Transfer to new cases.
06 · bring your own ChatGPT
One subscription. The one you already have.
Most AI study apps wrap a model API with a marked-up monthly fee. Get It. does not. The app signs in with your ChatGPT account through the official Codex CLI and runs every agent against your own tier. No second subscription, no per-message metering, no proprietary credits.
The default
Typical AI study app
- Their account, their key
- Their pricing on top of OpenAI's
- Your data flows through their server
- Cancel them, lose your work
Get It.
Get It.
- Your own ChatGPT account, your tier
- Zero markup, no per-message fees
- Everything stays on your disk
- Uninstall is local, your data stays
07 · install
Download Get It. No terminal, no account creation, no per-message fees.
The desktop app bundles the Codex CLI binary inside it. On first launch a wizard verifies the install and walks you through the OpenAI sign-in. Then you drop a PDF.
recommended for you
Other installer
Looking up the latest release on GitHub…
Builds are unsigned hackathon artifacts. On first launch macOS will ask you to confirm the developer and Windows SmartScreen will show a similar warning. Right-click → Open on macOS, More info → Run anyway on Windows.