Évariste turns your notes into a living knowledge graph, then a Feynman tutor quizzes you on it one question at a time, finding the gaps in your understanding and bringing them back with spaced repetition.
From mathematics to medicine. Évariste adapts the tutor, your notebook and the knowledge graph to match how each discipline is learned.
Évariste's main method is the Feynman technique, named after physicist Richard Feynman. The principle is simple, "if you can explain an idea in plain words, you understand it, and the moment you can't is the moment you've found a gap."
So instead of feeding you answers, Feynman picks a concept from your knowledge graph and asks you to explain it. You write your explanation in a real markdown editor, LaTeX and all, then it shows you where the reasoning breaks down and helps you simplify it.
Add a note, a PDF, or a photo and Évariste builds a context graph from it, breaking it into concept nodes, each with its own summary and detail, then linking them to what you already studied.
Then, as Feynman quizzes you, a knowledge graph is created from your answers. It maps how you connect ideas and how solid each one really is, so you can see your understanding take shape.
Ask anything and Évariste searches scientific papers, the open web and GitHub simultaneously, routing to the right sources for your topic automatically. No separate Scholar tab, no manual bibliography.
Every source you add becomes a context graph that grounds the answers in your own material. Results come with full citations, and with one click it generates a deep-dive document, code blocks and a visual research flow diagram.
Most study apps do one thing. Évariste connects your notes, languages, research and reviews so context follows you everywhere.
Drop in notes, PDFs or even photos of a whiteboard and chat with a tutor that actually reads them. Everything you add becomes structured, reusable context.
A complete language studio with conversation, journaling, pronunciation through minimal pairs and shadowing, vocabulary, and a hands-free speak mode.
A markdown editor with first-class LaTeX, linked notes, YouTube videos and an AI assistant always at hand. Your thinking, structured and searchable.
A multi-source agent that searches the web, scientific papers and GitHub, then hands back cited sources, deep-dive write-ups and code blocks.
Languages and Study Spaces have adaptive evaluations designed for how you learn. From listening comprehension, grammar and vocabulary to Feynman sessions, questions generated from your knowledge graph and active recall.
An SM-2 forgetting-curve engine schedules each review for the moment you're about to forget, with a visual decay curve so you can watch memory fade and recover.
Évariste Galois reshaped algebra before he turned 21. The app carries his name because it's built on the same belief: real understanding comes from doing the work, from recalling, struggling, and returning to ideas over time.
So instead of one more chat window, Évariste is a workspace tuned to how memory actually works.
The Feynman technique made simple: the tutor asks you to explain ideas back, one question at a time, and surfaces the exact gaps you'd otherwise skip over.
Reading isn't remembering. Évariste is built on active recall and spaced repetition, the two things cognitive science actually agrees on.
Generic chatbots don't know what you've studied. Every question and answer here is grounded in your own knowledge graph. It identifies the gaps in your understanding and actively reinforces them, so nothing slips through the cracks.
Simple plans, no surprises. Every tier keeps your data yours and exportable.
Everything you need to start learning seriously.
Start freeFor students and lifelong learners who go deep.
Go ProPay once. Learn for the rest of your life.
Get LifetimeOpen Évariste, type what you want to learn, and let the workspace do the rest.