# duoBooks vs Lingo7

duoBooks and Lingo7 both sit at 4.7 stars, but that hides the real split: 100% of Lingo7's written reviews are positive against 68% of duoBooks's. Lingo7 also leads on update cadence (every 2 days vs every 2 weeks). duoBooks's advantage is ratings volume (57 vs 6). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. duoBooks sells 11 in-app purchases, starting at $2.99 per month and Lingo7 sells 2 in-app purchases, starting at $5.00 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for duoBooks against 4.8 for Lingo7. That said, the two scores are not equally well evidenced: duoBooks has 57 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 68% of duoBooks's written reviews are positive against 100% of Lingo7's.

duoBooks ships an update every 2 weeks, Lingo7 every 2 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | duoBooks | Lingo7 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (57 ratings)](https://appshunter.io/ios/app/duobooks-language-learning/id1538452253/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/lingo7-languages-from-scratch/id6471030440/reviews)** |
| Number of ratings | **57** | 6 |
| Positive reviews | 68.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 53 MB | 89 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [PlainProg LLC](https://appshunter.io/developer/1538452255) | [SeYu LLC](https://appshunter.io/developer/1714681094) |

## 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 (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Plan | $2.99 | per month |
| Full Plan | $6.99 | per month |
| Full Plan | $17.99 | per year |
| 6 Month Full Plan | $19.99 | per 6 months |
| Full Yearly Plan | $29.99 | per year |
| War and Peace | $0.99 | one-time |
| Silver Blaze | $0.99 | one-time |
| On The River | $0.99 | one-time |
| Clochette | $0.99 | one-time |
| The Fishing Hole | $0.99 | one-time |
| Alice in Wonderland | $0.99 | one-time |


### Lingo7

[App page](https://appshunter.io/ios/app/lingo7-languages-from-scratch/id6471030440)

Enhance foreign language skills through immersive reading, listening practice, and focused vocabulary building. Offers parallel translation, audiobooks, and smart flashcards for steady improvement at all levels. Perfect for travelers, students, and self-improvers.

**Highlights:** Parallel text translation, Audiobooks in target language, Smart flashcards for vocabulary, Built-in dictionary, Multiple language support, Progress tracking

**Features:** macOS Compatibility, Family Sharing, Apple Wallet, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $5.00 | per month |
| Yearly subscription | $30.00 | per year |


## Frequently asked questions

### Is duoBooks free?

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

### Is Lingo7 free?

Lingo7 is free to download, with in-app purchases available.

### Which has better reviews, duoBooks or Lingo7?

Lingo7 is rated higher. duoBooks averages 4.7 out of 5 from 57 ratings, while Lingo7 averages 4.8 from 6 ratings.

### Do duoBooks or Lingo7 have ads?

Neither duoBooks nor Lingo7 shows ads.

### Which is updated more often, duoBooks or Lingo7?

duoBooks ships an update every 2 weeks, and Lingo7 every 2 days. Most recently, duoBooks was updated on October 29, 2026 and Lingo7 on October 30, 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.*