# duoBooks vs Emma

The clearest difference is review sentiment: duoBooks at 68% against Emma's 0%. duoBooks also leads on rating (4.7 vs 1.0) and ratings volume (59 vs 1). Emma's advantage is in-app purchases (none vs 3). On price and iOS requirement there is nothing between them.

Both are free to download. duoBooks sells 3 in-app purchases, starting at $6.99 per month. Emma asks for nothing beyond the download.

duoBooks holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: duoBooks has 59 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 68% of duoBooks's written reviews are positive against 0% of Emma's.

## The numbers

| Metric | duoBooks | Emma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (59 ratings)](https://appshunter.io/ios/app/duobooks-language-learning/id1538452253/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/emma-language-tutor/id1553858810/reviews) |
| Number of ratings | **59** | 1 |
| Positive reviews | **68.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 53 MB | 2 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 12+ | 9+ |
| Developer | [PlainProg LLC](https://appshunter.io/developer/1538452255) | [Benjamin Walker](https://appshunter.io/developer/1273915354) |

## What reviewers say

### duoBooks

[App page](https://appshunter.io/ios/app/duobooks-language-learning/id1538452253)

Read any book in any language with instant translation and detailed word explanations. Build your vocabulary with a personal dictionary and spaced repetition tools. Improve pronunciation with audio voiceovers and master new languages through immersive bilingual reading.

**Highlights:** Instant translation of any book, Personalized vocabulary dictionary, Spaced repetition for memorization, Audio voiceovers for pronunciation, Bilingual parallel text reading, EPUB reader for custom files

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Plan | $6.99 | per month |
| 6 Month Full Plan | $19.99 | per 6 months |
| Full Yearly Plan | $29.99 | per year |


### Emma

[App page](https://appshunter.io/ios/app/emma-language-tutor/id1553858810)

Practice speaking any of 30 languages with an AI tutor. Engage in open-ended conversations on any topic to improve your fluency and confidence.

**Highlights:** AI-powered language tutor, Conversational practice, Supports 30 languages, Chat about any topic, Personalized learning

**In-app purchases:** none


## Frequently asked questions

### Is duoBooks free?

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

### Is Emma free?

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

### Which has better reviews, duoBooks or Emma?

duoBooks is rated higher. duoBooks averages 4.7 out of 5 from 59 ratings, while Emma averages 1.0 from 1 ratings.

---

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