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Turn class notes and PDFs into flashcards for Anki on iPhone

Upload your own lecture notes, slides, PDFs or photos of pages. DeckOwl writes the flashcards and schedules reviews with spaced repetition, so you can study in the browser on your phone.

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Free account · 3 sets a month · Creates flashcards in seconds

Why studying on an iPhone suits flashcards

Short review sessions fit into a commute or a break between classes, which is why an Anki-style flashcards app for iPhone appeals to so many students. The key is making the cards from your own material, not hunting for generic decks that skip what your professor emphasized.

  • Works from notes, slides, PDFs and photos of pages
  • Spaced repetition schedules reviews around what you miss
  • Study in the browser on the free plan with 3 generations per month
  • Export to Anki, PDF, DOCX and CSV on Plus
Example biology flashcards on cell structure
Which organelle produces most of a cell's ATP?The mitochondrion, through cellular respiration, which converts glucose and oxygen into ATP.
What is the function of the rough endoplasmic reticulum?It synthesizes and folds proteins for secretion or for membranes, and its ribosomes give it the rough look.
What does the Golgi apparatus do?It modifies, sorts and packages proteins and lipids into vesicles for transport.
How do prokaryotic and eukaryotic cells differ?Eukaryotic cells have a membrane-bound nucleus and membrane-bound organelles, while prokaryotic cells lack both.
What is the role of the cell membrane?It is a phospholipid bilayer that is selectively permeable, controlling what enters and leaves the cell.
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Cards from your own material

Upload PDF, DOCX, PPTX, plain text or photos of pages. Text recognition reads the images, and the flashcards come from what you actually need to learn.

Spaced repetition built in

Cards you miss come back sooner and cards you know come back later, so short daily sessions on your phone add up.

Export to Anki

On the Plus plan, export your cards to Anki as well as PDF, DOCX and CSV. The free plan keeps everything inside the browser study view.

How it works

Upload your material

Add a PDF, slide deck, document, notes file or a photo of a textbook page.

Review the generated cards

Check the flashcards, edit anything that is off, and keep the ones that match your course.

Study and export

Study in the browser with spaced repetition, or export to Anki on a paid plan.

DeckOwl reads your lecture notes, slides and PDFs and turns them into question-and-answer cards. Spaced repetition then decides what to show next, so review time goes to the cards you are most likely to forget. If you already use Anki, you can export to it on a paid plan and keep your existing routine.

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Frequently asked questions

How many flashcards should I make in one session?

Keep each session small enough that you can finish it without rushing. Spaced repetition will bring back the cards you missed, so you do not need to study everything at once.

How do I study biology flashcards well?

Write one fact per card, ask for a term or function rather than a full paragraph, and review the cards you missed the same day. Short, frequent reviews work better than one long cram session.

Can I export my flashcards to Anki?

Yes, export to Anki is included in the Plus plan, which costs $99.90 per year or $9.99 per month. The free plan lets you study in the browser but does not include exports.

Is there a free plan?

Yes. The free plan includes 3 generations per month and browser study, and no credit card is needed to start.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.