Comparison

LazyLanguages vs DuoCards

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

Head to head
About

LazyLanguages

This app makes language learning engaging and simple with a focus on vocabulary acquisition through spaced repetition. It offers over 20 languages and allows users to customize learning schedules and content.

Highlights
  • Learn over 20 languages
  • Spaced repetition for memorization
  • Customizable lesson editor
  • Add personal vocabulary
  • Audio playback and recording
  • Playlist creation
Features
Read full description

LazyLanguages - is a pocket tutor, which is making language learning more interesting and easy. This app is perfect to start learning from the beginning or for consolidation and strengthening of already applied knowledge. With LazyLanguages you're allowed to learn over 20 languages. For example, English, Japanese, German, Korean, French, Spanish and many more. Whatever your goal is - to communicate, pass the exams or read a new book - with LazyLanguages it is easy, the comfortable way is the cornerstone of all learning. Education - is the game, that's why LazyLanguages has no matches with other courses, dictionaries, and translators. Here isonly the most relevant vocabulary, which will definitely come in handy to diversify your social life.. LazyLanguages offers you a set of words commonly used in the country of the target language. If that's not enough, you can easily add new vocabulary by yourself and use idiomatic examples to memorize even better. The main purpose of the app is to build and strengthen the base of the language through round-the-clock repetition. Around the clock? Yes! Just follow LazyLanguages guidelines to memorize and use more and more words. Don't worry, friend, there is a reason for this teaching technique. Repetition day and night helps you develop memory and master material faster. All words and phrases can be listened to in several modes and recorded in a personal bilingual dictionary to improve memorization efficiency. You can also use the microphone to recordnew words yourself. Words and phrases can be assembled into playlists that are suitable exactly for your purposes. There are handy notifications to remind you of the night lessons. LazyLanguages is an individual approach, so everyone can set the time of classes that suit them. There is an understandable lesson editor, a menu for setting dates, playback time, and pause between words. To know exactly what to expect from the lesson, the app contains background information such as the number of words in the lesson, the number of repetitions,the playback time, and the date of your last listening. We made sure that your headway will be faster!

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

Screenshots

LazyLanguages4 screens
DuoCards4 screens

Verdict

The call

The clearest difference is rating: DuoCards at 4.7 against LazyLanguages's 3.7. DuoCards also leads on ratings volume (1.4K vs 10). LazyLanguages's advantage is ads (none vs shown) and review sentiment (78% vs 63%). On price, in-app purchases, monetization model 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. LazyLanguages sells 3 in-app purchases, starting at $3.99 per month and DuoCards sells 10 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DuoCards holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: DuoCards has 1.4K ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 78% of LazyLanguages's written reviews are positive against 63% of DuoCards's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

LazyLanguages ships an update every 2 weeks, DuoCards monthly. The most recent releases landed on October 20, 2026 and October 29, 2026 respectively.

Scorecard5 real differences · 5 level
LazyLanguages versus DuoCards: the parameters behind the verdict, then further details
ParameterLazyLanguagesDuoCards
PriceFreeFree
Rating3.7 (10 ratings)4.7 (1.4K ratings) — better
Positive reviews77.8% of reviews — better63.1% of reviews
Number of ratings101.4K — better
Update frequencyEvery 2 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.013.0
Further details — not scored
Size90 MB19 MB
Age rating4+4+
Developer8 LAB, OOODuoCards s.r.o

Customer experience

LazyLanguages

All ratings10 ratings
Positive70.0%
Neutral0.0%
Negative30.0%
Written reviews45 reviews
Positive77.8%
Neutral4.4%
Negative17.8%

DuoCards

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

User reviews

LazyLanguages

From 10 App Store ratings

What we love

  • 👍 Great for supplementary learning
  • 🎧 Excellent for listening and repetition
  • 🗂️ Ability to create custom playlists
  • ✨ User-friendly interface
  • ✅ Works well for many users

Room to improve

  • 💰 Forced subscription/payment
  • 🚫 No free trial without payment
  • ❌ White screen/app not loading
  • ⚠️ Incorrect translations/errors
  • 🤔 Unclear pricing until late

DuoCards

From 1.4K App Store ratings

What we love

  • 👍 Easy to use
  • 💡 Customizable flashcards
  • 🚀 Efficient learning algorithm
  • 🐘 Cute mascot (Memo the mammoth)

Room to improve

  • 🐛 Bugs and crashes
  • ⚠️ Unreliable server connection
  • 💰 Expensive subscription
  • 🤔 Confusing interface

Bugs and requests

LazyLanguages

Reported bugs

4 issues
  • White screen on language selection
  • Cannot exit subscription pop-up
  • Inaccurate translations
  • Endless tutorial loop

Requested features

5 requests
  • Allow trying app without subscription
  • In-app purchases for premium features
  • Demo mode for trying out features
  • Clearer pricing before tutorial end
  • Fix bug preventing exiting subscription pop-up

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

In-app purchases

3 purchases

LazyLanguages

Subscriptions3
  • 1 month7 Days trial$3.991 Month
  • 12 months7 Days trial$19.496 Months
  • 12 months7 Days trial$32.991 Year
10 purchases

DuoCards

Subscriptions10
  • DuoCards Premium2 variants$19.991 Month
  • DuoCards Plus$33.003 Months
  • DuoCards Premium$34.993 Months
Show 7 more
  • DuoCards Premium$49.991 Year
  • 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

Questions

Is LazyLanguages free?
LazyLanguages is free to download, with in-app purchases available.
Is DuoCards free?
DuoCards is free to download, with in-app purchases available.
Which has better reviews, LazyLanguages or DuoCards?
DuoCards is rated higher. LazyLanguages averages 3.7 out of 5 from 10 ratings, while DuoCards averages 4.7 from 1.4K ratings.
Do LazyLanguages or DuoCards have ads?
DuoCards shows ads; LazyLanguages does not.
Which is updated more often, LazyLanguages or DuoCards?
LazyLanguages ships an update every 2 weeks, and DuoCards monthly. Most recently, LazyLanguages was updated on October 20, 2026 and DuoCards on October 29, 2026.

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