Common mistakes, named without AI.
Wrong sign, fraction upside down, squared instead of square root, off by a power of ten. Type an answer, or tap a slip.
Drop in your notes, slides or just a topic, and Felt turns them into a course of short lessons and exercises. AI writes the lessons. Fixed rules do the marking.
Waitlist perks: early beta access and a founding price. No spam.
Wrong sign, fraction upside down, squared instead of square root, off by a power of ten. Type an answer, or tap a slip.
A chatbot can mark the same answer right once and wrong the next time. Felt's rules give the same mark every time.
A chatbot says "not quite". Felt says "wrong sign in line 2" and still credits the lines after it.
A chat ends. Felt keeps your course, your streak and a review queue of what you missed.
Drop in PDF, Word, text, images, or just a topic, and you get units of short lessons and exercises.
A short form asks what the course is for, the level, the size, the exam, the problem types and the exact number of exercises, and shows a cost estimate before anything is written.
It reads each lesson before you do. It can still miss things, so every exercise has a "this is wrong" button.
Plain files in a folder you own, not locked inside an app. Edit one and it reloads live.
Felt's AI tutor opens with that exact exercise attached. It's there on correct answers too.
A Coach answer becomes a practice question in your review queue.
Ethene's holds two shared pairs. One is a ; the other is a , which sits above and below the plane of the molecule. The π bond is weaker, so it breaks first in an .
Select any words, or tap an underlined term.
Get What's this, Simpler, Example, Ask, or Question. Select some words in the lesson, or tap an underlined term.
Plots, bar charts and diagrams, with sliders, draggable points and readouts that update. Drag the yellow point.
Skip what you already know.
No lives to lose.
Across your devices, through our servers.
No Felt fee and no Felt limits: you pay Anthropic directly for what you use, and Felt never sees the key.
People who open it study for free.
Pick a ready-made course instead of starting from your own files.
Early beta access plus a founding price.