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Turn your notes into Anki-style flashcards on Android

Upload a PDF, a set of slides, typed notes or a photo of a page. DeckOwl reads the material and drafts flashcards you can review in your phone's browser with spaced repetition.

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 account · 3 sets a month · Creates flashcards in seconds

Anki-style flashcards from your own material

Students who study on their phones often want an Anki flashcard app for Android that does not require typing every card by hand. DeckOwl starts from the lecture slides, chapter PDF or notes you already have and turns them into question-and-answer cards.

Flashcards generated from PDFs, DOCX, PPTX, text notes and photos of pages
Spaced repetition scheduling so each review session focuses on weak cards
Quizzes with explanations and mind maps built from the same material
Export to Anki, PDF, DOCX or CSV on the Plus plan

Example Android development flashcards

What does onCreate() do in an Android Activity?It runs once when the activity is first created, and it is where you inflate the layout and set up views and initial state.

What is an Intent in Android?A messaging object that requests an action from another app component, such as starting an activity or passing data to it.

What is the purpose of AndroidManifest.xml?It declares the app's components, required permissions, minimum SDK version and package name so the system knows how to run the app.

What is a Fragment?A reusable part of a user interface with its own lifecycle, hosted inside an activity.

What problem does a ViewModel solve?It holds UI data so it survives configuration changes such as screen rotation, instead of being reloaded each time.

Generate the full set

Built from your material

Upload PDFs, DOCX files, PPTX slides, plain text notes or images of pages. Photos are read with text recognition.

Spaced repetition

Cards come back at growing intervals so you review what you are about to forget and spend less time on what you already know.

Export when you need it

On Plus you can export to Anki, along with PDF, DOCX and CSV, so your cards work in the Anki setup you already use.

How it works

Add your study material

Upload a file or paste your notes. No credit card is needed to start.

Generate and check the cards

DeckOwl drafts flashcards from the content. Edit any card that looks wrong before you study.

Study on your phone

Open the cards in your phone's browser and review them on a schedule set by spaced repetition.

Good cards hold one idea each. For a course on Android development, that might mean one card for the Activity lifecycle, one for what an Intent does, and one for the purpose of the manifest file. Review the draft, cut anything vague, and add cards where your notes are thin.

Spaced repetition does the scheduling, so a short session on your phone each day covers the material that is slipping. Free accounts get 3 generations per month and browser study. Plus adds unlimited generations and exports.

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Frequently asked questions

What Android topics should I make flashcards for first?

Start with the parts of the course you will be tested on, such as Activity lifecycle methods, Intents, and the role of each core component. Keep each card to one idea so reviews stay quick.

How many flashcards should I make for an Android development exam?

Aim for one card per concept, which usually means a few dozen for a single chapter. Add cards when you notice gaps during review rather than trying to cover everything at once.

Can I export my flashcards to Anki?

Yes, export to Anki is available on the Plus plan, along with PDF, DOCX and CSV. 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. No credit card is needed to start, and students get 40% off with a school email.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.