DuoCards - Vocabulary Builder
Contains adsIn-app purchases
4.6star
46.2K reviewsinfo
1M+
Downloads
PEGI 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
4.7
44.7K reviews
Fraser McMillan
- Flag inappropriate
March 28, 2025
A great little app that I've used to learn several hundred Spanish words and phrases over the last year. Whenever I come across a word I don't know, I add it to DuoCards, making it an excellent complement to classes and more conventional apps. The UI is simple and has a cute theme/incentive structure. More than worth the subscription 🦣📖
37 people found this review helpful
DuoCards
April 4, 2025
💙Huge thanks and good luck on your language journey! 🚀
Diana Velasco
- Flag inappropriate
March 12, 2025
Learning German & this is my favorite language learning app so far! (absolutely prefer it over the Duo owl, even though I'm still maintaining my 650+ day streak there, this Duo Mammoth is where I see real improvement and practice regularly). It has traditional flash cards, with explanations and lessons. Also offers level appropriate short movies and practice convos. The free version is great (big fan of the cute Memo sunset). Just got the subscription to support the app and enjoy further perks!
46 people found this review helpful
DuoCards
March 25, 2025
Hi Diana, thanks for the awesome review! 🦣✨This makes us really happy. Team DuoCards
Adam Balint Tisza
- Flag inappropriate
February 4, 2025
Would be perfect if... - it also displayed a random example under the word without the need for opening the definition page. - it didn't screw up my streaks. If I open the app to practice when I have time, that doesn't get registered and added to my streak. I'd need to wait for the push notification to be able to tick the day.
DuoCards
February 5, 2025
Hello Adam, thank you for your feedback :) Can you reach out to us at [email protected] regarding the streak, so we can look into it? Thank you! Tina 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
