Turn class notes into free flashcards you can study on your iPhone
Upload a PDF, slide deck, set of notes, or a photo of a page and DeckOwl builds flashcards you can review in your phone's browser, with spaced repetition to show you cards right before you forget them.
Why a free flashcard app works better when it uses your notes
If you want a free flashcard maker app for iPhone, the most useful one starts with the material you already have. Your lecture slides, chapter PDFs, and handwritten notes turned into photos are the source, so the cards match what your instructor actually tests rather than a generic deck.
- Free plan: 3 generations per month with studying in the browser
- Plus at $99.90/year or $9.99/month adds unlimited generations and PDF, DOCX, Anki, and CSV export
- Accepts PDF, DOCX, PPTX, plain text, and images of pages
- Students get 40% off with a school email
Works from your own material
Upload PDFs, DOCX, PPTX, plain text notes, or photos of pages. Text in images is read with text recognition, so handwritten-free printed pages work well.
Spaced repetition built in
Cards you miss come back sooner and cards you know fade into longer gaps, so short sessions on your phone add up.
Quizzes and mind maps too
Switch from flashcards to multiple choice, true/false, or short answer quizzes with explanations, or map a topic as a mind map.
How it works
Upload your material
Add a PDF, slides, notes, or a photo from your phone camera. No credit card is needed to start.
Review the generated cards
Check the flashcards DeckOwl creates, edit anything that looks off, and keep the ones you want.
Study in short sessions
Open the cards in your browser on your iPhone and let spaced repetition choose what you see next.
Making cards by hand takes time you could spend reviewing them. DeckOwl reads your upload, drafts question and answer pairs, and lets you trim or rewrite anything before you start studying. Spaced repetition then spaces out your reviews so the same facts come back at the right moments.
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Turn PDFs, slides, notes and photos into spaced repetition flashcards. Free to start.
Frequently asked questions
How many flashcards should I make for a biology unit?
Keep each card to one idea, and split any card whose answer needs more than a sentence or two. Fewer, sharper cards are easier to review on a phone during short breaks.
What makes a good flashcard for studying cell biology?
A good card asks one specific question, such as what an organelle does, and has a short answer you can check against your notes. Avoid cards that ask you to recite a whole chapter.
Is the free plan enough to study on my iPhone?
The free plan includes 3 generations per month and studying in the browser, but it does not include exports. Exporting to PDF, DOCX, Anki, or CSV requires Plus.
Can I export my flashcards to Anki from my iPhone?
Anki export is available on Plus, which costs $99.90/year or $9.99/month. Students get 40% off with a school email.
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