Re-watching videos and re-reading notes feels productive — but it barely sticks. Popcard is built on the two most proven ideas in learning science, and does the hard part for you.
Make your first deck — free →Paste a YouTube link, an article URL, or your own notes. A two-hour lecture, a dense chapter, a rambling podcast — Popcard reads it all.
Popcard pulls out the ideas worth remembering and writes clean question-and-answer cards in seconds — then a second AI pass fact-checks them, flagging anything shaky. We call it Pop-checked.
Study with active recall and let spaced repetition resurface each card at the perfect moment. Quizzes, a lesson path, and an AI tutor keep it from slipping away.
Every time you pull an answer from memory instead of re-reading it, you physically strengthen that memory. This is the testing effect — one of the most replicated findings in cognitive psychology. Popcard makes every card a tiny act of recall, which is exactly why flashcards beat highlighting.
Read the active recall guide →You forget on a predictable curve. Spaced repetition reviews each fact just before it would fade, then stretches the gap each time you remember — so a handful of well-timed reviews lock something in for months. Popcard schedules every card automatically. You just show up.
Read the spaced repetition guide →"The single most important thing you can do to learn is to test yourself — and to space those tests out over time."
Free to start. No card needed. Paste a link and see for yourself.
Make my first deck →