ClassFactor
AI tutor

A tutor for every card — grounded in your own material

Stuck on a flashcard or a question? Get an instant explanation, generated on demand and cited back to your page or timestamp — then keep asking follow-ups until it clicks. Or go hands-free and study out loud with the voice tutor.

  • Instant, on-demand explanations
  • Grounded in your source, not the open web
  • Cited to the exact page or timestamp
  • Hands-free voice tutor on Pro & Medical

Free to start · no credit card required

Why is calcium the answer here?
During the plateau, slow voltage-gated Ca²⁺ channels open and Ca²⁺ influx balances K⁺ efflux — holding the membrane depolarized. (Lecture 8, p.12)
Ask a follow-up…

How it works

From “I don’t get this” to “oh, that makes sense” in seconds

The tutor lives inside your decks and questions — so help is one tap away, right where you’re stuck.

1

Ask on any card or question

Stuck on a flashcard or a practice question? Tap “Explain” and the AI tutor writes an answer on demand — not a canned note, but a fresh explanation of that exact concept.

2

Get an answer grounded in your source

Every explanation is built from your own material and cited back to the page or timestamp it came from — so it matches your course, not a generic result off the open internet.

3

Keep asking follow-ups

Open a per-question chat and dig in: “give me a memory trick,” “how would this present clinically?,” “are there any exceptions?” The tutor stays in context until it clicks.

What it does

Not a generic chatbot — a tutor that knows your material

Every answer is anchored to what you uploaded and traceable back to the source.

Explanations on demand

Instant, plain-language breakdowns generated the moment you ask — for the specific card or question in front of you, at the depth you need.

Grounded in your material

Answers are drawn from the lectures, PDFs, and notes you uploaded — not a generic textbook or the open web — so they stay faithful to what you’re actually studying.

Cited to the page or timestamp

Each explanation points back to the exact page or video timestamp it came from, so you can jump to the source and confirm it in one tap.

A chat per question

Every question gets its own thread. Ask for a mnemonic, a clinical angle, a simpler version, or the exceptions — and keep the follow-ups coming.

Connects the concepts

The tutor links ideas across your material and can point you to related topics, so a single question turns into a map of how things fit together.

Hands-free voice tutor

Talk through the material out loud and let the tutor respond — right in your browser, no typing. Included on Pro and Medical.

Follow-up chat

One question is never the end of it

Open a chat on any question and keep pulling the thread. The tutor holds the context, so each follow-up builds on the last instead of starting from scratch.

“Give me a memory trick for this.”
“How would this present clinically?”
“Are there any exceptions?”
“Explain it like I’m brand new to the topic.”
Why is calcium the answer here?
During the plateau, slow voltage-gated Ca²⁺ channels open and Ca²⁺ influx balances K⁺ efflux — holding the membrane depolarized. (Lecture 8, p.12)
Ask a follow-up…

Voice tutor

Hands-free · in your browser

“Walk me through the cardiac cycle.”
Sure — it starts with atrial systole filling the ventricles, then isovolumetric contraction builds pressure…

Voice tutor

Study out loud, hands-free

Sometimes the fastest way to learn is to talk it through. The voice tutor lets you study hands-free — ask a question out loud, hear it explained, and go back and forth without touching your keyboard. It runs right in your browser.

  • Study out loud, hands-free — no typing, no tapping
  • Runs right in your browser, nothing to install
  • Perfect for commutes, walks, chores, and lab downtime
  • Included on Pro and Medical, alongside higher-quality models

Included on Pro & Medical

Why it matters

Understanding is what makes recall stick

Retrieve, then understand

A flashcard tells you that you got it wrong. The tutor tells you why — so a missed card becomes the moment you finally understand the concept instead of just re-reading it.

No more dead ends

When a note doesn’t make sense at 11pm, you don’t have to wait for office hours or fall down a search-engine rabbit hole. Ask, get a grounded answer, and keep moving.

Study in the gaps

With the voice tutor you can review on a walk or between rotations. The time you’d otherwise lose becomes real, spoken practice.

Who it’s for

However you study, the tutor meets you there

Med & board students

Ask “how would this present clinically?” on any card and get a source-grounded answer — then talk through pathways out loud with the voice tutor between rotations.

College & high school

Turn a confusing slide into a clear explanation without leaving your deck, and follow up until the concept actually sticks for the exam.

Language learners

Ask for context, usage, and memory tricks in 35+ languages, grounded in the very material you’re learning from.

Web, iOS, and Android · 35+ languages

FAQ

AI study tutor, answered

It’s a study assistant built into your decks and questions. On any card or practice question you can ask for an instant explanation, and it’s generated on demand from your own uploaded material — cited back to the exact page or timestamp — rather than pulled from the open internet. You can then open a per-question chat and keep asking follow-ups like “give me a memory trick,” “how would this present clinically?,” or “are there any exceptions?”

The explanations are grounded in your source material and cited to the page or timestamp they came from, so they match your course instead of a generic textbook or a random search result. The tutor also connects concepts across your material and can point you to related topics, and it lives right inside the card or question you’re studying — no copying and pasting between apps.

The voice tutor lets you study hands-free by talking through the material out loud and getting spoken responses, right in your browser — great for commutes, walks, or reviewing between other tasks. It’s a Pro and Medical feature (included on Pro and above), not part of the Free plan.

The text AI tutor — on-demand explanations and follow-up chat — is available on the Free plan, with a daily/hourly usage limit. Pro and Medical raise those limits, add the hands-free voice tutor, and unlock higher-quality models. Paid plans come with a 7-day free trial.

Because answers are grounded in your own material and cited back to the source, you can verify any explanation in one tap. That said, as with any AI, we recommend double-checking high-stakes or clinical answers against your source and course materials — the tutor is a study aid, not a substitute for authoritative references.

The AI tutor works across web, iOS, and Android, and supports 35+ languages so you can ask and get explanations in the language you study in. Your questions and threads stay in sync, so you can ask on your laptop and pick it back up on your phone.

Never study a confusing card alone again.

Get instant, source-grounded explanations on any question — free to start, no credit card.

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