Comparison

DuoCards vs Memorize Flash Card Maker

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

Memorize Flash Card Maker

Create and study custom flashcards with spaced repetition. Supports text and voice input, AI image generation, and offline access. Earn coins to unlock more content.

Highlights
  • Create custom flashcard decks
  • Spaced repetition learning
  • Text and voice card input
  • AI image generation
  • Offline mode support
  • Data import/export
  • Progress tracking
Features
Read full description

Just R is a great choice to study foreign languages. Create your own cards in different topic and have enjoy of such a simple learning process. With Just R app you can: - Create a deck of cards on separate topics and with different colours - Mark the deck as studied - Sort, filter, search, edit, remove your deck and cards - View the number of repetitions per day and in total - Create cards on separate tags and with different colors - Ability to create different types of cards by text and voice - Listen to the cards - Support for offline mode - Download cards - Study cards using reminders to repeat (Ebbinghaus' memory curve) - Earning coins to purchase decks and cards - Export and import data to CSV-file - Use AI to generate images and convert text to speech - Find context for using your sentences We love feedback! Please email us at justr.service@gmail.com. If you enjoy the app, please leave a review. Thank you! PLEASE NOTE: You will need Just R subscription in order to have unlimited amount of decks and cards. - Payment will be charged to iTunes Account at confirmation of purchase - Subscriptions may be managed by user and auto-renewal may be turned off by going to the user’s Account Settings after purchase More detail about our subscriptions. We use such type of auto-renewable subscription: - 1 week subscription - $0.99 - 1 month subscription - $2.99 - 3 month subscription - $7.99 - 6 month subscription - $16.99 - 1 year subscription - $29.99 Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. Privacy policy: http://justr.pp.tilda.ws Terms of use: http://justr.tu.tilda.ws Instagram: https://www.instagram.com/just_read_repeat_remember/ Start now and experience the new way of learning English.

Screenshots

DuoCards4 screens
Memorize Flash Card Maker4 screens

Verdict

The call

The clearest difference is rating: DuoCards at 4.7 against Memorize Flash Card Maker's 3.7. DuoCards also leads on ratings volume (1.4K vs 3) and iOS requirement (13.0 vs 16.0). Memorize Flash Card Maker's advantage is update cadence (fortnightly vs monthly). On price, ads, in-app purchases and monetization model 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 10 in-app purchases, starting at $19.99 per month and Memorize Flash Card Maker sells 8 in-app purchases, starting at $0.99 per 7 days. 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 3, so its average is the more settled of the two.

UpkeepUpdate frequency

DuoCards ships an update monthly, Memorize Flash Card Maker fortnightly. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
DuoCards versus Memorize Flash Card Maker: the parameters behind the verdict, then further details
ParameterDuoCardsMemorize Flash Card Maker
PriceFreeFree
Rating4.7 (1.4K ratings) — better3.7 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings1.4K — better3
Update frequencyMonthlyFortnightly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.0
Further details — not scored
Size19 MB42 MB
Age rating4+4+
DeveloperDuoCards s.r.oTaras Chernysh

Customer experience

DuoCards

All ratings1,340 ratings
Positive93.4%
Neutral2.5%
Negative4.2%

Memorize Flash Card Maker

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Memorize Flash Card Maker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

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
8 purchases

Memorize Flash Card Maker

Subscriptions5
  • Week subscription$0.997 Days
  • Month subscription$2.991 Month
  • 3 month subscription$7.993 Months
Show 2 more
  • Semi-Annual subscription$16.996 Months
  • Annual subscription$29.991 Year
One-time3
  • Image generation$0.29
  • Deck purchase$0.99
  • Premium$39.99

Questions

Is DuoCards free?
DuoCards is free to download, with in-app purchases available.
Is Memorize Flash Card Maker free?
Memorize Flash Card Maker is free to download, with in-app purchases available.
Which has better reviews, DuoCards or Memorize Flash Card Maker?
DuoCards is rated higher. DuoCards averages 4.7 out of 5 from 1.4K ratings, while Memorize Flash Card Maker averages 3.7 from 3 ratings.
Do DuoCards or Memorize Flash Card Maker have ads?
Both DuoCards and Memorize Flash Card Maker show ads.
Which is updated more often, DuoCards or Memorize Flash Card Maker?
DuoCards ships an update monthly, and Memorize Flash Card Maker fortnightly. Most recently, DuoCards was updated on October 24, 2026 and Memorize Flash Card Maker on October 24, 2026.

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