When to review.
FSRS models memory and schedules cards from your explicit recall ratings. It is the open-source scheduling foundation also supported by Anki.
How Paivio worksSpaced repetition
Spaced repetition
was the starting point.
We started with FSRS, the open-source scheduler also supported by Anki. Then we built Paivio’s own systems for connecting your material, organizing reviews and delivering recall practice.
The Paivio learning systemA schedule is the foundation.
A schedule is the foundation.
The study system goes further.
How ideas connect.
Our concept-mapping system connects the material in your own decks. When the format your account is assigned uses the graph, on your own decks it orders reviews by prerequisite links within the due cards. It never adds a card or changes a due date.
How you work with it.
Our retrieval system brings supported card presentations into the study session. Which study mechanisms are delivered depends on the format your account is assigned. Card presentations follow a fixed policy, not your individual mastery or past mistakes. Multiple choice and matching are held back while an account is being measured in the comparison.
Your daily routineBring it in.
Bring it in.
Work through it.
Come back to it.
Bring your material.
Import an Anki .apkg, paste notes, or start from a topic.
Anki .apkg · Notes · Topics
Practice recalling it.
Answer, reveal and rate your cards. Your explicit ratings inform the review schedule.
Prompt · Recall · Rate
Come back to what’s due.
Open your queue for the next review. Paivio uses spaced repetition to schedule cards over time.
Review queue · Spaced repetition
Inside your workspace
Your material, brought together.
Know where to begin.
Bring your study material into one workspace, then open your queue when it is time to review.
Explore the study loop →
Make it yours
Start with the work you’ve already done.
Import your Anki deck.
Bring your .apkg and review history. Start with the material you already know your way around.
Bring your notes.
Turn lecture notes into a draft set of questions. Refine the cards against your course sources.
Start from a topic.
Generate a starting set of concepts and questions, then make it your own.
The connections behind the cardsBuilt around the structure
Built around the structure
of your subject.
Illustrative concept map
One concept opens onto the next.
Preload, venous return and cardiac output belong to the same story. Paivio maps relationships like these so you can explore the material as connected ideas.
When the format your account is assigned uses the graph, on your own decks it orders reviews by prerequisite links within the due cards. It never adds a card or changes a due date.
Recall in practice
More ways to work with a question.
What does preload describe?
Form an answer, reveal it, and rate your recall.
Preload relates to ventricular [fill in] before contraction.
Retrieve the missing piece within a familiar statement.
Explain the Frank–Starling relationship.
Put the relationship into your own words on eligible cards.
Which study mechanisms are delivered depends on the format your account is assigned. Card presentations follow a fixed policy, not your individual mastery or past mistakes. Multiple choice and matching are held back while an account is being measured in the comparison.
Built by Paivio
The system keeps evolving.
Paivio research & developmentOur next chapter is
Our next chapter is
being built in-house.
We’re developing Paivio’s own machine-learning methods alongside our concept-mapping, review-ordering and retrieval systems. Our research trials and patent work are in progress.
We’ll publish our findings and share the technical details when that work is complete. Until then, the details of this ongoing work remain private.
Getting started
A few useful answers.
Can I bring my Anki decks?
Yes. Paivio supports .apkg imports, including review history. Import your deck to continue working with your own material.
What does it cost?
Paivio is free during beta, with no credit card needed. There is no paid plan to choose during beta.
How does Paivio build on spaced repetition?
FSRS provides the scheduling foundation. Paivio adds its own concept-mapping, review-ordering and retrieval systems around the material you study.
Will every account see the same study features?
Study mechanisms depend on the fixed format assigned to the account. Review timing, ratings and due dates are the same across the comparison formats.
Can I trust every AI-generated card?
AI can make mistakes. Check generated questions and answers against your own course materials and edit them when needed.
Your next chapterBring one deck.
Bring one deck.
Start one session.
Create an account and make your next review a place to begin.
Free during beta · No credit card · For students 18+