DuoCards: Vocabulary Builder

DuoCards: Vocabulary Builder

Language Flashcards & AI

1.3K ratings
591 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • April 15, 2020
  • August 29, 2026

Features

DuoCards: Vocabulary Builder screenshot #1 for iPhone
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DuoCards: Vocabulary Builder screenshot #10 for iPhone
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About

Master a new language with interactive flashcards and video courses. This app helps you build vocabulary, guess words, and track your progress across over 50 languages. Learn effectively through spaced repetition and integrated translation tools.

Flashcard learning with spaced repetition
Video language courses with interactive subtitles
Integrated translator for over 50 languages
Vocabulary builder and progress tracker
Guess words and phrases to sharpen skills
Read foreign language articles
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What users say

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+1

What's New in DuoCards

1.20.17

August 29, 2026

AI Roleplay - Practise real-world conversations in simulated scenarios AI Stories - Interactive stories with comprehension exercises Bookmarks - Save your current progress in an article for later Transliteration - Read Chinese, Arabic, and Japanese scripts easily Auto Dark Mode - Study comfortably day or night Smarter Translations - Context-aware translations AI Grammar Feedback - Accurate corrections with explanations

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Subscription plans

DuoCards Premium

Unlocks all premium features

$49.991 Year
How to cancel DuoCards subscription ⁉️

Events

Read more about Try Pronunciation Feedback Now

Try Pronunciation Feedback Now

Get pronunciation feedback on words you learn

Oct 13, 2025 Nov 7, 2025

User reviews

Списывает деньги даже при отмене подписки!!!

Скачала приложение чтобы понять нравится или нет. Была пробная я неделя бесплатная. После суток решила что приложение мне не нравится, отменила подписку и удалила приложение. Через неделю с банка приходит уведомление о попытке списание подписки за это приложение?!! Я в шоке!!!

Классное приложение

Мне все нравится, но сделайте пожалуйста виджет, для того чтобы напоминать, что нужно пройти урок 🙏🏻

We need this option

Hi! I really love using Duocards to learn vocabulary with flashcards. I’d really love to have an option to automatically play the example sentence when I flip a flashcard. Right now, I can hear the word, but hearing the example sentence automatically would help me remember the word much better. It would be great if users could turn this option on in the settings. Thank you!
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Response from developer

Hi Hajar, thanks for the feedback! We're happy to hear you're loving Duocards for learning vocabulary. Adding the ability to automatically play example sentences when flipping flashcards is a neat idea for enhancing memory recall. We'll consider this for future updates. Jana from DuoCards

best app for me to study words

я попробовал очень много способов как учить иностранные слова, но только в этом приложении у меня получилось РЕАЛЬНО выучить больше 1050 слов/фраз на английском и больше 600 на итальянском (учил в 2025, запоминал реально быстро и эффективно) Конечно если сюда не заходить, то весь словарь забывается, но это проблемы нашего мозга, а не этого милого мамонтёнка. всем мир
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Находка

Потрясающее приложение

Response from developer

Hey there! Thanks for the kind words! 💪 Jana from DuoCards

User experience

🐞

Reported Bugs

4 issues

App freezes and crashes

Bug

Issues with logging in and accessing content

Bug

Inconsistent behavior when adding new words

Bug

Problems with video playback and subtitles

Bug

Requested Features

4 requests

Offline mode

Feature

More customization options

Feature

Improved spaced repetition system

Feature

Better integration with other language learning tools

Feature

FAQ

What does DuoCards do?

DuoCards is a language learning application designed to help users acquire new languages or enhance their existing vocabulary. It utilizes a combination of interactive flashcards, video language courses, and an integrated translator to facilitate effective learning.

How does the flashcard learning method work?

The app employs a spaced repetition system with flashcards. Users view foreign words or phrases and swipe them to indicate if they are known or unknown. This method ensures that words are repeated at optimal intervals for memorization and vocabulary building.

What languages can I learn with DuoCards?

DuoCards supports learning over 50 foreign languages, including popular options like English, Spanish, French, German, and Portuguese. The integrated translator further enhances the learning experience for a wide range of languages.

Is DuoCards free to use?

The app is free to download and use, offering core language learning features at no initial cost. However, it does include in-app purchases, which may unlock additional content or advanced functionalities for users who wish to enhance their learning experience.

Can I learn from videos with DuoCards?

Yes, DuoCards offers video language courses. You can watch YouTube videos with subtitles, and the app allows you to interact with unknown words by pausing the video and displaying their translations, making learning from multimedia content seamless.