# JADOH vs DuoCards

The clearest difference is review sentiment: JADOH at 98% against DuoCards's 63%. JADOH also leads on rating (5.0 vs 4.7). DuoCards's advantage is ratings volume (1.4K vs 1) and update cadence (monthly vs every 5 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. JADOH sells 3 in-app purchases, starting at $2.99 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.

JADOH holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: DuoCards has 1.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 98% of JADOH's written reviews are positive against 63% of DuoCards's.

JADOH ships an update every 5 months, DuoCards monthly. The most recent releases landed on October 15, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | JADOH | DuoCards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jadoh-master-toeic-and-language/id1249964489/reviews)** | [4.7 (1.4K ratings)](https://appshunter.io/ios/app/duocards-vocabulary-builder/id1508159917/reviews) |
| Number of ratings | 1 | **1.4K** |
| Positive reviews | **98.1% of reviews** | 63.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 45 MB | 19 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [JADOH Learning (Thailand) Company Limited](https://appshunter.io/developer/1249964488) | [DuoCards s.r.o](https://appshunter.io/developer/1508159916) |

## What reviewers say

### JADOH

[App page](https://appshunter.io/ios/app/jadoh-master-toeic-and-language/id1249964489)

This app transforms popular movies, TV shows, and news into engaging language learning tools. It offers comprehensive preparation for the TOEIC exam, covering all listening and reading segments, and also helps users master new vocabulary and sentence structures in Chinese, Japanese, and Korean.

**Highlights:** TOEIC test preparation, Learn vocabulary from movies/shows, Master sentence patterns, Smart learning tests, Chinese, Japanese, Korean language learning, TOEIC exam archives

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FUN | $2.99 | per month |
| PREMIUM | $6.49 | per month |
| ELITE | $9.99 | per month |


### 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 (10)**

| 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 | $49.99 | per year |
| 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


## Frequently asked questions

### Is JADOH free?

JADOH 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, JADOH or DuoCards?

JADOH is rated higher. JADOH averages 5.0 out of 5 from 1 ratings, while DuoCards averages 4.7 from 1.4K ratings.

### Do JADOH or DuoCards have ads?

Both JADOH and DuoCards show ads.

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

JADOH ships an update every 5 months, and DuoCards monthly. Most recently, JADOH was updated on October 15, 2026 and DuoCards on October 27, 2026.

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