DuoCards - Vocabulary Builder
Contains adsIn-app purchases
4.2star
48.5K reviews
1M+
Downloads
Rated for 3+
info
About this app
Master vocabulary and learn languages fast with DuoCards – the #1 duocards app for Spanish flash cards, English words, AI-powered vocab builder, and more!
🔹 DuoCards Language Flashcards
Swipe, sort and study with our spaced-repetition algorithm. Build your vocabulary with duo cards app precision: English vocabulary, Spanish vocabulary, French flashcards, German words, Korean vocab, Japanese kanji, Russian language, Italian vocabulary, Portuguese phrases, and 50+ languages.
🔹 Vocabulary Builder & AI Tutor
Use our vocabulary AI builder to discover new words, phrases, and sentences. Whether you’re improving English learning, mastering Spanish vocabulary, or expanding your French vocab, this AI tutor adapts to your level. A free vocabulary builder app and vocab builder for learners of all levels.
🔹 Tinycards & Memorise fun
DuoCards app brings you flashcards fun with extra power: built-in translator, offline mode, and shareable decks.
🔹 Video Language Courses & Articles
Watch YouTube videos with subtitles, tap unknown words to pause, translate, and save to your duo cards decks. Read foreign language articles to strengthen your bilingual skills and vocabulary building apps routine.
🔹 Progress Analytics & Performance Tracker
See your learning streaks, known vs unknown words, and dashboard heatmaps. Track your English vocabulary growth, Spanish flash cards mastered, and total words learned.
🔹 Social & Sharing Features
Collaborate with friends on duocards language decks or share your favorite English learning app resources. Join a community of language learners.
✔️ Free language learning apps for English, Spanish, French, German, Russian, Italian, and more
✔️ Learn a language with flashcards, games, and AI-powered vocabulary games
✔️ Bilingual support, educational content, vocabulary building apps, and promo offers
✔️ No subscription required—learn English, learn Spanish free, learn languages anytime, anywhere
Download DuoCards today and transform your language learning! Improve vocabulary, conquer English words, master Spanish flash cards, and speak like a native—your ultimate language app.
🔹 DuoCards Language Flashcards
Swipe, sort and study with our spaced-repetition algorithm. Build your vocabulary with duo cards app precision: English vocabulary, Spanish vocabulary, French flashcards, German words, Korean vocab, Japanese kanji, Russian language, Italian vocabulary, Portuguese phrases, and 50+ languages.
🔹 Vocabulary Builder & AI Tutor
Use our vocabulary AI builder to discover new words, phrases, and sentences. Whether you’re improving English learning, mastering Spanish vocabulary, or expanding your French vocab, this AI tutor adapts to your level. A free vocabulary builder app and vocab builder for learners of all levels.
🔹 Tinycards & Memorise fun
DuoCards app brings you flashcards fun with extra power: built-in translator, offline mode, and shareable decks.
🔹 Video Language Courses & Articles
Watch YouTube videos with subtitles, tap unknown words to pause, translate, and save to your duo cards decks. Read foreign language articles to strengthen your bilingual skills and vocabulary building apps routine.
🔹 Progress Analytics & Performance Tracker
See your learning streaks, known vs unknown words, and dashboard heatmaps. Track your English vocabulary growth, Spanish flash cards mastered, and total words learned.
🔹 Social & Sharing Features
Collaborate with friends on duocards language decks or share your favorite English learning app resources. Join a community of language learners.
✔️ Free language learning apps for English, Spanish, French, German, Russian, Italian, and more
✔️ Learn a language with flashcards, games, and AI-powered vocabulary games
✔️ Bilingual support, educational content, vocabulary building apps, and promo offers
✔️ No subscription required—learn English, learn Spanish free, learn languages anytime, anywhere
Download DuoCards today and transform your language learning! Improve vocabulary, conquer English words, master Spanish flash cards, and speak like a native—your ultimate language app.
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Ratings and reviews
4.2
46.9K reviews
Таисия Кувшинова
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April 3, 2025
Great app! The best use of AI I ever saw: it explains the vocab, makes stories with the words you need to study, and an incredibly intelligent system that helps you target your weak vocab. Interactive videos, texts, courses with grammar explanations. Have been using it for over half of the year now and haven't run into a pay wall (except that you can have only two languages at the same time without the premium, but that's fine). The navigation isn't intuitive, but the app has everything you want
2 people found this review helpful
DuoCards
April 3, 2025
Hi there, thank you so much for the detailed feedback! 🙏 We're glad you're enjoying the app.🦣💙
Straider
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April 26, 2025
For me, it's pretty-hard to learn new language when I already knew 300 words, to continue learning just by cuts of phrases without variations. You suppose to buy full version; ok, when I just will be able to do this — do you agree that if I won't like it, I will rate it lower? (I also used another app to learn Chinese; and that was more easier and interesting then learning languages via this app, unfortunately, almost all languages to choose though).
Rand Ashley
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August 31, 2024
Huge number of cards from and it paces you to move on to new sections once you're comfortable with what you've covered. (Edit): This was previously 5 stars, but some cards have the first sound of a word's audio cutout. I contacted customer service with a video and they gaslit me by saying the video doesn't show what it clearly shows) it's not constant or on all cards so it's manageable but I will keep this at 3 stars until it's fixed.
36 people found this review helpful
DuoCards
April 19, 2024
Thanks a lot and keep learning! :)
Simona from DuoCards
What’s new
Smarter learning algorithm that helps you learn more effectively.
Enhanced AI that provides better grammar explanations, personalized stories, and more accurately responds.
New study sets with new vocabulary focused on learning popular topics.
Optimized notifications system to help maintain your daily streak.
Performance upgrades and bug fixes for smoother studying.
Enhanced AI that provides better grammar explanations, personalized stories, and more accurately responds.
New study sets with new vocabulary focused on learning popular topics.
Optimized notifications system to help maintain your daily streak.
Performance upgrades and bug fixes for smoother studying.
App support
About the developer
DuoCards s.r.o.
info@duocards.com
Hluboká 91/18
639 00 Brno
Czechia
+420 606 436 967
