Comparison

DuoCards vs Flashword

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

Flashword

Easily save new words you encounter, look them up in system dictionaries, and add personal notes for context or translation. Organize your vocabulary into custom categories for efficient learning and retention.

Highlights
  • Save new words
  • System dictionary lookups
  • Personal notes for words
  • Categorize saved words
  • Organize vocabulary
Features
Read full description

Ever heard a word you did not know, looked it up, and then quickly forgot about it? If that is the case, Flashword comes to the rescue! With Flashword, you can save new words you hear or learn in any way. You can look them up using the system's dictionaries and you can take notes for every word, maybe to jot down a translation, maybe to remember the context you first heard that word in, maybe to highlight interesting use cases. You can also divide the words into categories of your choosing to quickly organize the words you save!

Screenshots

DuoCards4 screens
Flashword4 screens

Verdict

The call

DuoCards and Flashword both sit at 4.7 stars, but that hides the real split: 100% of Flashword's written reviews are positive against 63% of DuoCards's. Flashword also leads on ads (none vs shown) and update cadence (every 2 weeks vs monthly). DuoCards's advantage is ratings volume (1.5K vs 9) and iOS requirement (13.0 vs 26.0). On price, rating, 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 9 in-app purchases, starting at $19.99 per month and Flashword sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for DuoCards against 4.7 for Flashword. That said, the two scores are not equally well evidenced: DuoCards has 1.5K ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 63% of DuoCards's written reviews are positive against 100% of Flashword's.

UpkeepUpdate frequency

DuoCards ships an update monthly, Flashword every 2 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
DuoCards versus Flashword: the parameters behind the verdict, then further details
ParameterDuoCardsFlashword
PriceFreeFree
Rating4.7 (1.5K ratings) — better4.7 (9 ratings)
Positive reviews63.1% of reviews100.0% of reviews — better
Number of ratings1.5K — better9
Update frequencyMonthlyEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS13.0 — better26.0
Further details — not scored
Size19 MB20 MB
Age rating4+4+
DeveloperDuoCards s.r.oAlessio Mason

Customer experience

DuoCards

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

Flashword

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 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

Flashword

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
1 purchases

Flashword

One-time1
  • Small tip$0.99

Questions

Is DuoCards free?
DuoCards is free to download, with in-app purchases available.
Is Flashword free?
Flashword is free to download, with in-app purchases available.
Which has better reviews, DuoCards or Flashword?
DuoCards is rated higher. DuoCards averages 4.7 out of 5 from 1.5K ratings, while Flashword averages 4.7 from 9 ratings.
Do DuoCards or Flashword have ads?
DuoCards shows ads; Flashword does not.
Which is updated more often, DuoCards or Flashword?
DuoCards ships an update monthly, and Flashword every 2 weeks. Most recently, DuoCards was updated on November 7, 2026 and Flashword on November 4, 2026.

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