In the age of instant answers, the real edge is remembering.

Master any subject in half the time.

Paste a YouTube link, PDF, or topic. Get a perfect flashcard deck in seconds. Powered by FSRS v6 — the same algorithm as Anki — to guarantee you never forget.

Try it — tap the card (1/3)
What is the spacing effect?
Tap to see the answer
The spacing effect is the finding that long-term memory is enhanced when learning events are spaced apart in time, rather than massed together. Discovered by Ebbinghaus in 1885, it remains one of the most robust findings in cognitive psychology.
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Average retention rate
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Fewer reviews needed
Science-backed
Same algorithm as Anki

How it works

1
Paste a YouTube link, PDF, or topic

Drop a YouTube lecture, upload your course slides, or type any concept. AI builds a flashcard deck from whatever you give it — in seconds.

2
Study with FSRS v6 — the same algorithm as Anki

Review your cards and rate how well you remembered. The algorithm calculates exactly when to show each card again for maximum retention.

3
Track streaks, share decks, never forget

Daily streaks keep you consistent. Share decks with classmates. A few minutes a day compounds into deep, permanent knowledge.

Instant AI flashcards

Describe what you want to learn. AI creates the perfect question-and-answer pair. Choose from 4 AI providers.

Study less, remember more

Each review is scheduled at the perfect moment — right before you forget. The same algorithm trusted by Anki's 86% med student adoption.

AI fact-checking built in

Every generated card can be verified with one tap. AI cross-references your flashcards against reliable sources — so you study facts, not hallucinations.

Build an unbreakable habit

Daily streaks, accuracy tracking, and weekly progress charts. Watch your memory get stronger every day.

Share and fork decks

Create public decks anyone can fork and study. Build a library of knowledge together.

Frequently asked questions

What is spaced repetition?

Spaced repetition is a learning technique that shows you flashcards at increasing intervals based on how well you know them. Cards you struggle with appear more often; ones you know well appear less. It's backed by decades of cognitive science research.

What is FSRS v6?

FSRS (Free Spaced Repetition Scheduler) v6 is the most advanced open-source scheduling algorithm available — the same one used by Anki. It personalizes the forgetting curve per user and optimizes review timing based on your memory patterns, improving retention by up to 30% compared to traditional methods like SM-2.

Which AI providers can I use?

Forgetless supports OpenAI, Anthropic, Google Gemini, and Mistral for flashcard generation. All four produce high-quality cards — pick whichever you prefer.

Can I import my existing flashcards?

Yes. You can import Anki .apkg files or JSON exports directly from Settings. Your cards will be ready to study immediately.

What's included in Free vs Pro?
FreePro
Cards50 activeUnlimited
AI generations10 / month50 / day
Study sessionsUnlimitedUnlimited
Image uploads10Unlimited
Fill-in-the-blank cardsYesYes
Batch generationYes
PDF / file upload3 / monthUnlimited
Public decksUnlimited
Streak freezes1 / month3 / month
Advanced analyticsYes
See full pricing details

Ready to remember everything?

Start free — your first deck is on us. No credit card required.

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