# DuoCards vs ReabDook

The clearest difference is review sentiment: DuoCards at 63% against ReabDook's 0%. DuoCards also leads on rating (4.7 vs 3.0) and ratings volume (1.4K vs 1). ReabDook's advantage is update cadence (every 6 days vs monthly). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. DuoCards sells 10 in-app purchases, starting at $19.99 per month and ReabDook sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

DuoCards holds the better App Store score, 4.7 against 3.0. 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: 63% of DuoCards's written reviews are positive against 0% of ReabDook's.

DuoCards ships an update monthly, ReabDook every 6 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DuoCards | ReabDook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.4K ratings)](https://appshunter.io/ios/app/duocards-vocabulary-builder/id1508159917/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/reabdook/id6761660307/reviews) |
| Number of ratings | **1.4K** | 1 |
| Positive reviews | **63.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 19 MB | 47 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DuoCards s.r.o](https://appshunter.io/developer/1508159916) | [Grappes LLC](https://appshunter.io/developer/1822874260) |

## 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 (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


### ReabDook

[App page](https://appshunter.io/ios/app/reabdook/id6761660307)

Learn languages by reading classic books. Tap any word for instant translation, get AI-powered grammar explanations, and build vocabulary with smart flashcards and quizzes. Supports 31 languages and offers text-to-speech for pronunciation.

**Highlights:** Tap-to-Translate, AI Grammar Coach, 900+ Classic Books, Smart Quizzes, Text-to-Speech, Progress Tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $6.99 | per 7 days |
| Monthly Premium | $17.99 | per month |
| Quarterly Premium | $34.99 | per 3 months |


## Frequently asked questions

### Is DuoCards free?

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

### Is ReabDook free?

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

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

DuoCards is rated higher. DuoCards averages 4.7 out of 5 from 1.4K ratings, while ReabDook averages 3.0 from 1 ratings.

### Do DuoCards or ReabDook have ads?

Both DuoCards and ReabDook show ads.

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

DuoCards ships an update monthly, and ReabDook every 6 days. Most recently, DuoCards was updated on October 27, 2026 and ReabDook on October 25, 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.*