Sia Note turns any document, lecture, or video into a single study-ready note built on the AskSia Method — a research-backed blend of Cornell Notes, the Feynman Technique, Zettelkasten, active recall, and spaced repetition. Built for how memory actually works.
Rediscovery of Greek/Roman texts after fall of Constantinople (1453). Wealthy Italian city-states (Florence, Venice) funded humanist scholars and artists.
Luther's 95 Theses (1517) attacked indulgences. Printing press let ideas spread fast.
Sia Note is AskSia's proprietary AI note generator. It turns any input — PDFs, Word, PowerPoint, scanned handwriting, lecture audio, YouTube videos, podcasts, or articles — into a single study-ready note built on the AskSia Method: a research-backed combination of Cornell Notes, the Feynman Technique, Zettelkasten, active recall, and spaced repetition. Every note ships with cue questions, atomic linked concept cards, an exam-relevance score, and one-tap conversion to a Visual Map, Flashcard set, or Quiz. Free to start, on Web, iOS, and Android.
Other AI notetakers freestyle. Sia Note assembles every output from five evidence-based techniques that researchers and top students have separately validated for decades.
Most AI notetakers stop at "writing things down." Sia Note keeps going — into how memory works, what to test, and when to review.
Cornell Notes, Feynman, Zettelkasten, active recall, spaced repetition — five techniques researchers have validated for decades, automatically applied to every note.
PDF, Word, PPT, scanned handwriting, audio, video, YouTube, podcasts, articles, live lectures. Generic notetakers stop at text — Sia ingests everything you actually study from.
Every cue and concept card lives in an SM-2 review queue. Open the queue and Sia surfaces exactly the cards you're about to forget. Sync across Web, iOS, and Android.
Sia tags every section low / medium / high / read-carefully based on syllabus, prior exams (AP/IB/SAT/A-Level/major college), and the source's own emphasis cues. Triage triages itself.
Every Sia Note has Generate Visual Map / Flash Cards / Quiz buttons. Same source, four ways of studying — pick whichever clicks for the topic.
Take a Mandarin lecture and request an English Sia Note. Or ingest an English textbook and ask for 한국어. Cross-language notes preserve the AskSia-Method structure.
PDF, Word, PPT, scanned handwriting, audio file, YouTube link, live lecture recording, or a podcast URL.
Cornell zones, Feynman summaries, Zettelkasten links, active-recall questions, exam-relevance scores — all auto-generated in parallel.
Open the spaced-repetition queue. Sia surfaces only the cards you're about to forget — not the ones you already know.
Drag in your library, watch the Cornell zones, Feynman summaries, and Zettelkasten cards build out, and chat with Sia about anything in the note.
The mobile app is built around the spaced-repetition queue. Open it on the bus, run through today's 8 cards, sync everything to Web automatically.
Drop in 200 pages of biology, get a Sia Note with cue questions, Feynman one-liners, and an exam-relevance score per section.
Paste a Khan Academy or 3Blue1Brown URL — Sia transcribes, indexes, and builds a Sia Note with timestamped concept cards.
Hit record in class — Sia transcribes, identifies speakers, and turns the lecture into a Sia Note in real time.
Snap your messy notebook — Sia OCRs the handwriting and rebuilds it as a Cornell-structured Sia Note with cue questions you forgot to write.
Drop in past papers, your textbook, and your professor's slides — Sia merges them into one Sia Note with exam-relevance triage and a review queue.
Turn a 30-page NeurIPS paper into a Sia Note with Zettelkasten-linked atomic concept cards you can connect to your own work.
General notetakers are blank canvases. Sia Note is a methodology — five validated study techniques, automatically applied.
| Feature | Sia Note | Notion AI | Mem / Obsidian |
|---|---|---|---|
| Built-in study methodology | ✓ Cornell + Feynman + Zettelkasten + Active Recall + SR | Blank page | Blank page |
| Auto-generates active-recall cue questions | ✓ Per section | No | No |
| Built-in spaced-repetition review queue | ✓ SM-2 algorithm | No | Plugin only |
| Audio + video + YouTube native input | ✓ Auto-transcribe | No | No |
| Scanned handwriting OCR | ✓ Native | No | No |
| Exam-relevance scoring (AP/IB/SAT/college) | ✓ Per section | No | No |
| One-tap to Visual Map / Flashcard / Quiz | ✓ Generator family | No | Manual setup |
| Built specifically for students | ✓ AP/IB/SAT/college trained | Knowledge-worker tool | PKM tool |
| Cross-language note generation | ✓ 40+ languages | Translate only | Manual |
| Free plan | ✓ Daily Sia Notes, no card | Limited AI credits | ✓ Open-source local |
Drop a document or a video into AskSia, then pick the format your brain learns best from.
Methodology-driven note · Cornell + Feynman + Zettelkasten + Active Recall + SR
The whole subject as a navigable concept tree · holistic
Auto-generated · spaced repetition · cross-source
Adaptive · MC + free-response · exam-grade
Drop any document or video and Sia builds you the kind of note top students take — Cornell + Feynman + Zettelkasten + active recall + spaced repetition, in 20 seconds. Free to start, no credit card.