# duoBooks vs WordVia

The clearest difference is in-app purchases: WordVia at none against duoBooks's 3. On price, update cadence, ads and device support there is nothing between them.

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

duoBooks ships an update every 2 weeks, WordVia every 11 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | duoBooks | WordVia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (59 ratings)](https://appshunter.io/ios/app/duobooks-language-learning/id1538452253/reviews)** | — |
| Number of ratings | **59** | — |
| Positive reviews | 68.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 110 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [PlainProg LLC](https://appshunter.io/developer/1538452255) | [Soghomon Chilingaryan](https://appshunter.io/developer/1797792911) |

## 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 |


### WordVia

[App page](https://appshunter.io/ios/app/wordvia-learn-by-reading/id6764081609)

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

**In-app purchases:** none


## Frequently asked questions

### Is duoBooks free?

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

### Is WordVia free?

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

### Do duoBooks or WordVia have ads?

Neither duoBooks nor WordVia shows ads.

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

duoBooks ships an update every 2 weeks, and WordVia every 11 days. Most recently, duoBooks was updated on November 3, 2026 and WordVia on October 24, 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.*