Comparison

DuoCards vs Linguin

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DuoCards

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.

Highlights
  • 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
Features
Read full description

Build vocabulary from the real content you already enjoy. DuoCards helps you save new words from videos, articles, shared decks, and your own notes, then remember them with smart flashcards and spaced repetition. Why learners choose DuoCards: - Save words and phrases from videos, subtitles, and articles - Practice with an AI tutor for real-life conversations - Improve pronunciation with instant feedback - Review vocabulary with flashcards that adapt to your progress - Learn English, Spanish, French, German, Japanese, Korean, and 50+ languages - Use ready-made courses, public decks, or your own personal word lists Learn in a simple loop: 1. Discover useful words in context 2. Save them to your personal deck 3. Review, speak, listen, and remember Whether you are learning for travel, school, work, or everyday conversations, DuoCards gives you a flexible way to build vocabulary and keep it in memory. Download DuoCards and start building your language habit today. Terms of use: https://www.duocards.com/termsofuse.html Privacy policy: https://www.duocards.com/privacypolicy.html

About

Linguin

Access definitions, slang, phrases, and idioms from over 80 languages. Enhance your language skills with usage tips, word origins, similar words, and pronunciation guides. Explore the fascinating history behind every word.

Highlights
  • Instant definitions for words and phrases
  • Usage tips for correct context
  • Word origins and etymology
  • Synonyms, antonyms, and related words
  • Pronunciation guides
  • Support for over 80 languages
  • User-friendly interface
Features
Read full description

Understand more than the translation. Linguin is a private language companion for translating, exploring words, building vocabulary and practising real conversations. Instead of giving you a single literal translation, Linguin helps you understand what words and phrases actually mean, how they are used and which meaning fits your context. DICTIONARY FOR 120+ LANGUAGES Look up words and phrases across more than 120 languages. Explore different meanings, real usage examples, synonyms, pronunciation, usage notes, slang and cultural context. CONTEXT-AWARE TRANSLATION Translate words, phrases and longer text while preserving meaning, tone and context. Choose a quick translation or a deeper result when accuracy and natural phrasing matter most. YOUR PERSONAL VOCABULARY Save useful words and phrases to create your own multilingual word library. Keep the vocabulary that matters to you organised and ready to practise. VOCABULARY EXERCISES Strengthen your memory with short exercises based on your saved words. Match words with meanings, practise repeatedly and focus on vocabulary you genuinely want to learn. SPEAKING AND CONVERSATION PRACTICE Choose any topic and practise through voice or text. Have conversations at your own pace without timers or pressure. PERSONALISED FEEDBACK After each conversation, receive clear feedback on what went well, what needs improvement and what to practise next. Track your development across multiple sessions. BUILT FOR REAL LANGUAGE USE • Language learners building practical vocabulary • Travellers communicating abroad • Students reading and writing in another language • Professionals working with international teams • Anyone curious about the meaning and usage of words PRIVATE BY DESIGN Practise, make mistakes and explore freely in a private environment. Linguin does not sell your personal activity or use it to follow you around the web. Look up a word, save it, practise it and use it in conversation with Linguin.

Screenshots

DuoCards4 screens
Linguin4 screens

Verdict

The call

The clearest difference is review sentiment: DuoCards at 63% against Linguin's 0%. DuoCards also leads on update cadence (monthly vs every 8 months) and iOS requirement (13.0 vs 17.0). Linguin's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DuoCards sells 9 in-app purchases, starting at $19.99 per month. Linguin asks for nothing beyond the download.

UpkeepUpdate frequency

DuoCards ships an update monthly, Linguin every 8 months. The most recent releases landed on November 13, 2026 and November 14, 2026 respectively.

Scorecard6 real differences · 4 level
DuoCards versus Linguin: the parameters behind the verdict, then further details
ParameterDuoCardsLinguin
PriceFreeFree
Rating4.7 (1.5K ratings) — better—
Positive reviews63.1% of reviews — better0.0% of reviews
Number of ratings1.5K — better—
Update frequencyMonthly — betterEvery 8 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better17.0
Further details — not scored
Size19 MB0 MB
Age rating4+12+
DeveloperDuoCards s.r.oSurfy Ltd

Customer experience

DuoCards

All ratings1,340 ratings
Positive93.4%
Neutral2.5%
Negative4.2%
Written reviews594 reviews
Positive63.1%
Neutral10.4%
Negative26.4%

Linguin

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

DuoCards

Reported bugs

4 issues
  • App freezes and crashes
  • Issues with logging in and accessing content
  • Inconsistent behavior when adding new words
  • Problems with video playback and subtitles

Requested features

4 requests
  • Offline mode
  • More customization options
  • Improved spaced repetition system
  • Better integration with other language learning tools

Linguin

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

DuoCards

Subscriptions9
  • DuoCards Premium2 variants$19.991 Month
  • DuoCards Plus$33.003 Months
  • DuoCards Premium$34.993 Months
Show 6 more
  • DuoCards Premium7 Days trial$64.901 Year
  • DuoCards Premium7 Days trial$67.991 Year
  • DuoCards Premium1 Year trial$107.991 Year
  • DuoCards Premium7 Days trial$109.001 Year
  • DuoCards Premium7 Days trial$113.991 Year
  • DuoCards Premium1 Year trial$162.991 Year
None

Linguin

No in-app purchases

Questions

Is DuoCards free?
DuoCards is free to download, with in-app purchases available.
Is Linguin free?
Linguin is free to download, with no in-app purchases.
Do DuoCards or Linguin have ads?
DuoCards shows ads; Linguin does not.
Which is updated more often, DuoCards or Linguin?
DuoCards ships an update monthly, and Linguin every 8 months. Most recently, DuoCards was updated on November 13, 2026 and Linguin on November 14, 2026.

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