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Books · Android, iPhone and the web

Read the book you chose. Keep the words you meet in it.

Upload an EPUB or FB2 book and read it in the app. Tap a word or select a phrase to see its translation, save it to your inbox, and turn it into a flashcard that spaced repetition keeps for you.

repeat.cards has a book reader for language learners. Upload an EPUB or FB2 book, and words that are not on your known-words list are marked as you read. Tap a word or select a phrase to see its translation, save it to the inbox, and train it as a flashcard. It works on Android, iPhone and the web.

Open your first book

How does reading with repeat.cards work?

A word met in a book you care about is easier to remember than a word from a list. The reader keeps you in the book: the translation opens over the page, and the word waits in your inbox while you read on.

  1. Upload a book. Add an EPUB or FB2 file from your phone or computer and tell the app its language if the book does not say.
  2. Tap a word, or select a phrase. The translation opens over the page: several options for a word, the meaning as a whole for a phrase.
  3. Save it and train it. The word goes to your inbox with its translation. From there it becomes a flashcard, and spaced repetition brings it back just before you would forget it.
The reader on a phone: a page with new words marked and a tapped word translated
New words are marked on the page; a tapped word opens its translation

One word, from a page to a card

Here is the whole trip for one word met in a book.

Open the book

What happens
It opens on the page where you stopped, with new words marked

Tap a marked word

What happens
Its translations open below the page

Save one of them

What happens
The word waits in the inbox with that translation

Hold a word you already know

What happens
It goes onto your known-words list and its mark disappears

Open the inbox later

What happens
Turn the word into a card in the deck for that language

What the reader does for you

  • Words you know stay plain. Only words that are not on your known-words list for the book’s language are marked. Hold a marked word to put it on the list, and the mark goes.
  • A mode for picking words. Turn on translate mode and a swipe selects whole words, so a phrase or a sentence is picked as easily as a single word.
  • The book keeps your place. The book and the page you stopped on are kept in your account, so you can start on the phone and carry on on a computer.
  • Reading settings. Text size, typeface, line spacing and margins, and a switch for the new-word marks when you just want to read.

Where your books are kept

A book you upload is stored in your account, up to 10 books of 30 MB each, and only you can open it. Reading needs a connection, because the book is loaded from your account. Translating uses AI and runs on coins; reading, marking new words and saving a word cost nothing. Prices are on the pricing page.

Reading books FAQ

Which book formats can I read?
EPUB and FB2. You upload the file yourself, from your phone or your computer; repeat.cards does not sell or supply books.
Where are my books stored?
In your account, up to 10 books of 30 MB each. That is what lets the book and your place in it follow you to another device. Delete a book to make room for another.
Which languages can the books be in?
Translation works for the language pairs of your decks, and repeat.cards covers more than 100 languages. New words are marked where the app has a dictionary for the book’s language; where it has none, you can still translate and save words, they are just not marked.
Does the reader work on my phone and on the web?
Yes. It is in the Android app, the iPhone app and on the website, with the same books and the same place in each.
Does reading cost anything?
Reading, the new-word marks and saving words cost nothing. Translating a word or a phrase uses AI, which runs on coins: every account starts with some, more come in one-off packs, or you can use your own OpenAI or Google key.

Turn your next book into vocabulary.

Create an account, upload a book you want to read, and keep the words you meet in it. Free to start, no credit card.

Get started — free

EPUB and FB2 · New words marked · Android, iPhone and the web