---
title: "Review the words you looked up, with spaced repetition | ContextCat"
description: "Every word you tap in ContextCat is saved with its sentence and comes back as a card just before you would forget it, using spaced repetition."
url: https://contextcat.app/features/cards
---

[ContextCat](https://contextcat.app/)[Features](https://contextcat.app/features)

# Cards: the words you tapped come back

Looking a word up once rarely makes it stick. ContextCat saves every word you tap, with the sentence you met it in, and brings it back as a card just before you would forget it.

[Download on the App Store](https://apps.apple.com/app/apple-store/id6737737343?pt=122713589&ct=site_feature_cards&mt=8)



## How review works

A card shows the word and the sentence it came from. Answer Remembered or Forgot. A remembered word comes back after a day, then six days, then at longer and longer gaps. A forgotten word comes back tomorrow.

If you already know a word, mark it Known. If you never want to see it again, say so and it goes away for a year.

## Your progress

The Progress tab counts the words you are learning and the words you know, and lists every word you have tapped with the sentence it was in.

Cards are part of every plan. [Pricing](https://contextcat.app/pricing)

## Questions

### Do I have to make cards?

No. Every word you tap becomes a card on its own. You only decide whether you remembered it.

## More of ContextCat

-   [Tap any word](https://contextcat.app/features/tap-any-word): Tap a word in anything you read and ContextCat explains what it means in that sentence, in your own language, right under the line you are reading.
-   [Today's news](https://contextcat.app/features/news): Every day ContextCat collects headlines from real outlets in the language you read. Open one, read it in the app and tap any word you do not know.
-   [PDFs, links and books](https://contextcat.app/features/pdfs-and-books): Import a PDF, save a link to any web article or paste text, then read it in ContextCat and tap any word for its meaning in that sentence, in your language.
-   [Ask](https://contextcat.app/features/ask): Ask a question about a page, a paragraph or your whole document and get an answer from the text, or ask ContextCat to quiz you on what you just read.
-   [Listen](https://contextcat.app/features/listen): ContextCat reads your book, PDF or article aloud in a natural voice, sentence by sentence, highlighting the words as they are spoken, with speed and repeat controls.
-   [Stories](https://contextcat.app/features/stories): Coming in ContextCat 1.1: short stories written at your level, and a daily serial for English learners, two minutes an episode. What exists today and what is next.