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NewThe Duolingo for self-study

Turn any heavy PDF into bite-sized daily lessons.

Drop in a textbook, paper or manual. DuckEars builds a gamified curriculum that fits your deadline — then locks it into long-term memory with AI quizzes on a spaced-repetition loop that knows exactly when you’re about to forget.

Join 2,412+ learners already in line

  • Free forever tier
  • No credit card
  • Early access this quarter
How it works

Three steps between you and the thing you're trying to learn

No syllabus building. No flashcard grind. Upload, set a deadline, show up for five minutes a day.

duckears.app / new-course
📄

Drop your PDF here

or paste a link · EPUB, slides and notes welcome

PDF

OrganicChem_Ch7.pdf

Ready
PDF

Kinetics_lecture_notes.pdf

64%
Built for focus

Made for brains that stall on page 12

A 400-page PDF asks three things of you before you learn anything: decide what to read, hold the plan in your head, and stay with it long enough to feel a reward. DuckEars takes all three jobs off you.

One decision, already made

You never open the app and wonder where to start. Today's lesson is queued, sized and waiting — the hardest part of studying is already done.

Five minutes is a real session

Lessons are short enough to start on a bad day and still count. No 90-minute block to psych yourself into, no all-or-nothing guilt.

The plan lives outside your head

Deadlines, intervals and what's due next are the app's job, not your working memory. Close it for four days and it reshuffles instead of collapsing.

Feedback every twenty seconds

Active recall answers back immediately. Re-reading a page is easy to drift away from; being asked a question is much harder to ignore.

Designed with executive function in mind — which is why people studying with ADHD are some of the learners we build for most deliberately. DuckEars is a study tool, not a medical device, a diagnosis or a treatment.

Why DuckEars

Everything a study app should have done years ago

Built around one idea: the best curriculum is the one that adapts to how quickly you actually forget.

Core engine

AI quizzes written from your own material

Not generic trivia. Every question is generated from the exact page you uploaded, cited back to the source, and rewritten when you keep missing it.

Generated · p. 214

Rank these carbocations from most to least stable.

Tertiary
Secondary
Primary

Why: alkyl groups donate electron density, stabilising the positive charge. Cited from §7.3.

Tune it:Too easyToo wordyAsk again later

Spaced repetition that actually adapts

Miss a card and it comes back tomorrow. Nail it three times and it disappears for a month.

🧠

Modelled recall over 12 weeks

2.4x
Better 30-day recall
-58%
Time spent re-reading
6 min
Median daily session
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Deadline-aware scheduling

Exam on the 14th? We compress, reshuffle and prioritise so you finish with room to spare.

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Progress you can feel

Streaks, XP, mastery per chapter — and an honest “you’re 61% exam-ready” score.

Exam readiness61%
✈️

Works on the subway

Lessons cache to your device and sync the moment you’re back online. Streak intact.

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Bring anything readable

PDFs, EPUBs, lecture slides, scanned notes, arXiv links. If you can read it, DuckEars can teach it.

  • PDF
  • EPUB
  • PPTX
  • DOCX
  • arXiv
  • Scans
Early beta

1,200 beta testers. A suspicious number of streaks.

What people told us after four weeks with an early build.

“I fed it a 600-page pharmacology text on a Sunday. By Monday I had a 9-week plan I actually stuck to.”
Amara O.Med student, UCL
“The review timing is uncanny. A card resurfaces exactly when I'm starting to go fuzzy on it.”
Jonas T.PhD candidate, ETH
“Anki without the six hours of card-making. That alone is worth the subscription.”
Rhea K.Actuarial trainee
“I finally finished a machine learning textbook I'd been 40 pages into for two years.”
Luis N.Backend engineer
“My streak is at 47 days. I have never once studied 47 days in a row in my life.”
Priya S.CFA Level II
“It quotes the page number for every answer, so I trust it in a way I don't trust a chatbot.”
Tomás R.Law student, USP
“Uploaded our 300-page onboarding manual and the whole new-hire cohort used it. Wild.”
Erin M.L&D lead
“ADHD brain here. Not having to decide what to study is the entire reason I have opened it 31 days in a row.”
Kwame B.Self-taught dev
Pricing

Priced like a coffee, not like a textbook

Waitlist members lock in launch pricing for their first year. The free tier never expires, and every paid plan states its limits up front — no surprise throttling.

Switch to annual and save 22%

Free Learner

$0/month

 

Enough to find out whether the loop works for your brain.

  • 3 active courses
  • Up to 150 pages per upload
  • Standard review intervals
  • Daily streaks and XP
  • Web and mobile
Start free

Join the waitlist to claim this tier

Most popular

Pro Scholar

$9/month

 

For the semester where everything is due at once.

  • 25 active courses
  • Up to 1,000 pages per upload
  • Adaptive spaced repetition
  • Deadline-aware rescheduling
  • Custom streak and daily goals
  • Priority processing queue
  • Offline sync across devices
Get Pro Scholar

Join the waitlist to claim this tier

Researcher

$19/month

 

For academics and professionals with a library, not a textbook.

  • Everything in Pro Scholar
  • 100 active courses
  • Up to 5,000 pages per upload
  • Frontier models for generation
  • Multi-source courses — merge papers into one curriculum
  • Zotero, Notion and arXiv import
  • Export decks to Anki and CSV
  • Early access to new features
Get Researcher

Join the waitlist to claim this tier

Prices in USD, excluding any local tax. Student and academic discounts available at launch · Cancel any time.