# DuoCards vs 갓영어

The clearest difference is review sentiment: 갓영어 at 100% against DuoCards's 63%. 갓영어 also leads on in-app purchases (none vs 10) and ads (none vs shown). DuoCards's advantage is ratings volume (1.5K vs 2) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

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

갓영어 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: DuoCards has 1.5K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of DuoCards's written reviews are positive against 100% of 갓영어's.

DuoCards ships an update monthly, 갓영어 weekly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | DuoCards | 갓영어 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.5K ratings)](https://appshunter.io/ios/app/duocards-vocabulary-builder/id1508159917/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id6471910721/reviews)** |
| Number of ratings | **1.5K** | 2 |
| Positive reviews | 63.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 58 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DuoCards s.r.o](https://appshunter.io/developer/1508159916) | [Dong Won Kim](https://appshunter.io/developer/1716215280) |

## What reviewers say

### DuoCards

[App page](https://appshunter.io/ios/app/duocards-vocabulary-builder/id1508159917)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DuoCards Premium | $19.99 | per month |
| DuoCards Plus | $33.00 | per 3 months |
| DuoCards Premium | $34.99 | per 3 months |
| DuoCards Premium | $64.90 | per year |
| DuoCards Premium | $67.99 | per year |
| DuoCards Premium | $107.99 | per year |
| DuoCards Premium | $109.00 | per year |
| DuoCards Premium | $113.99 | per year |
| DuoCards Premium | $162.99 | per year |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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**

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


### 갓영어

[App page](https://appshunter.io/ios/app/id6471910721)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DuoCards free?

DuoCards is free to download, with in-app purchases available.

### Is 갓영어 free?

갓영어 is free to download, with no in-app purchases.

### Which has better reviews, DuoCards or 갓영어?

갓영어 is rated higher. DuoCards averages 4.7 out of 5 from 1.5K ratings, while 갓영어 averages 5.0 from 2 ratings.

### Do DuoCards or 갓영어 have ads?

DuoCards shows ads; 갓영어 does not.

### Which is updated more often, DuoCards or 갓영어?

DuoCards ships an update monthly, and 갓영어 weekly. Most recently, DuoCards was updated on November 3, 2026 and 갓영어 on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*