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Turn your own notes and PDFs into free flashcards on Android

Upload a PDF, slides, notes or a photo of a page and get flashcards with spaced repetition. The free plan includes 3 generations a month and studies right in your phone browser.

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

What to look for in a free flashcard app on Android

Choosing the best free flashcard maker app for Android usually comes down to one question: can it build cards from the material you already have? Typing every term by hand is slow, and most lecture slides or textbook chapters already contain the facts you need to memorize.

Accepts PDFs, DOCX, PPTX, plain text and photos of pages
Schedules reviews with spaced repetition so weak cards come back sooner
Lets you study in the browser on your phone at no cost
Offers exports to Anki or CSV on paid plans if you need to move decks

Example Android development flashcards

What does onCreate() do in an Android Activity?It runs once when the activity is created and usually calls setContentView() to inflate the layout.

What is an Intent in Android?A messaging object that asks another app component to do something, either explicitly by naming the target or implicitly by declaring an action.

Why use a ViewModel?It holds UI data and survives configuration changes like screen rotation, so the data is not reloaded from scratch.

What does Gradle do in an Android project?It builds the project, resolves dependencies, and packages the app into an APK or AAB file.

What is the role of AndroidManifest.xml?It declares the app's components, permissions, minimum SDK version and entry points the system needs to know about.

Generate the full set

Starts from your material

Upload PDFs, DOCX or PPTX files, plain notes, or a photo of a textbook page. Text recognition reads the photo so you can study it too.

Spaced repetition built in

Cards come back at the intervals that help you remember them, so you spend less time rereading and more time on the cards you miss.

No card needed to begin

Start on the free plan with no credit card. Upgrade to Plus only if you want unlimited generations and exports to Anki or CSV.

How it works

Add your material

Open DeckOwl in your Android browser and upload a file or photo from your phone or cloud storage.

Generate flashcards

The AI pulls out key terms and questions from your material and builds a deck you can review right away.

Study on a schedule

Review each card, mark how well you knew it, and let spaced repetition decide when it shows up again.

A useful free option should accept the formats you actually study from, such as PDFs, slides, and photos of pages, and it should schedule reviews so you are not cramming the same cards every day. Check whether the free tier limits how many decks you can generate, since that decides how far you get before paying.

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Frequently asked questions

Is DeckOwl free to use on Android?

The free plan gives you 3 generations a month and lets you study in your phone browser with no credit card required. Exports are part of the paid Plus plan.

How many flashcards should I make for learning Android development?

Start with one card per concept, such as one for the Activity lifecycle, one for Intents, and one for ViewModel. A focused deck of 30 to 60 cards from one chapter is easier to review daily than a huge deck you rarely open.

How do I study the Android Activity lifecycle effectively?

Make cards for each callback, including onCreate, onStart, onResume, onPause, onStop and onDestroy, and write the trigger for each one on the back. Review the cards in order, then test yourself by describing what happens when the screen rotates.

Can I export my flashcards to Anki from Android?

Yes, but exports to Anki, CSV, PDF and DOCX are features of the Plus plan. The free plan lets you study the cards in the browser without exporting them.

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Review the main ideas visually or practice recalling them.