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Turn your PDFs and notes into AI flashcards for iOS study

DeckOwl reads your PDF, slides, notes or photos of pages and builds flashcards you can review with spaced repetition. It runs in the browser, and the Free plan includes 3 generations a month.

Create flashcards nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free · First set needs no signup · Creates flashcards in seconds

Why a flashcard maker app beats writing cards by hand

Students studying iOS development often have long lecture notes, Swift documentation and slide decks, and turning all of that into cards by hand takes more time than the studying itself. A flashcard maker app for iOS can read your own material and draft the cards for you, so you spend your time checking and reviewing.

Reads PDF, DOCX, PPTX, plain text and photos of pages
Spaced repetition schedules the cards you are about to forget
Free plan includes 3 generations per month and browser study
Students get 40% off with a school email

Example iOS development flashcards in Swift and UIKit

What does an optional in Swift represent?A value that may be present or nil, which you unwrap safely with if let, guard let or a default using ??.

Which UIKit method runs after a view has appeared on screen?viewDidAppear(_:). viewDidLoad runs once after the view controller loads its view, before it appears.

What does Automatic Reference Counting (ARC) do in Swift?It frees class instances when no strong references to them remain, so you rarely manage memory by hand.

How do structs and classes differ in Swift?Structs are value types that are copied on assignment, while classes are reference types shared through references.

What does the @MainActor attribute ensure?That the marked code runs on the main actor, which is the main thread, as needed for UI updates.

Generate the full set

Cards from your own material

Upload a PDF, DOCX, PPTX, text file or a photo of a page, and get flashcards written from that content.

Spaced repetition built in

Cards you miss come back sooner, and cards you know come back later, so review time goes to what you are about to forget.

Export when you need it

Plus adds PDF, DOCX, Anki and CSV export, so you can take your cards into other tools.

How it works

Upload your material

Add a PDF, slide deck, set of notes or image of a page.

Review the generated cards

Check the flashcards DeckOwl creates and edit any that need a clearer question or answer.

Study with spaced repetition

Work through the deck in the browser and let the review schedule adjust to what you remember.

The most useful cards come from your course, not a generic list. Upload the lecture slides or notes you were given, then fix any card that asks the wrong thing. Keep the terms you keep missing and add cards for them.

DeckOwl runs in the browser and starts without a credit card. Try the Free plan with a few generations first, and move to Plus if you want unlimited generations and export to Anki or CSV.

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Frequently asked questions

How many flashcards should I make for iOS or Swift study?

One card per term or concept is a practical starting point. Add more cards for the ideas you keep missing when you review.

How should I study Swift flashcards to remember them long term?

Review in short sessions and say the answer aloud before you flip the card. Spaced repetition brings back the cards you are closest to forgetting.

Can I export my flashcards to Anki?

Yes, Anki export is included in the Plus plan, along with PDF, DOCX and CSV export. The Free plan lets you study in the browser without exports.

Is there a free plan?

Yes. The Free plan includes 3 generations per month and browser study, and you do not need a credit card to start.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.