# Go Native vs DuoBook.co

The clearest difference is update cadence: DuoBook.co at every 5 days against Go Native's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Go Native sells 2 in-app purchases, starting at $1.99 per month and DuoBook.co sells 1 in-app purchase, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Go Native ships an update every 10 days, DuoBook.co every 5 days. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Go Native | DuoBook.co |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/go-native-learn-words/id6475643217/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 57 MB | 33 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Oleksiy Kudrya](https://appshunter.io/developer/1438980776) | [Emin Onur Karakaslar](https://appshunter.io/developer/1891281160) |

## What reviewers say

### Go Native

[App page](https://appshunter.io/ios/app/go-native-learn-words/id6475643217)

This app helps you consistently build vocabulary and effectively remember foreign words and phrases. It offers structured courses, personalized word lists, and a variety of exercises and games to make learning natural and engaging.

**Highlights:** Spaced repetition system for memorization, Pre-made vocabulary courses (A1-B1), Create custom word lists, 19 types of vocabulary exercises, Vocabulary games (crosswords, word-builder), Grammar explanations and exercises, Alphabet and pronunciation guides

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium+ | $1.99 | per month |
| Premium+ | $17.99 | per year |


### DuoBook.co

[App page](https://appshunter.io/ios/app/duobookco/id6762019079)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DuoBook Pro | $7.99 | per month |


## Frequently asked questions

### Is Go Native free?

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

### Is DuoBook.co free?

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

### Do Go Native or DuoBook.co have ads?

Neither Go Native nor DuoBook.co shows ads.

### Which is updated more often, Go Native or DuoBook.co?

Go Native ships an update every 10 days, and DuoBook.co every 5 days. Most recently, Go Native was updated on October 12, 2026 and DuoBook.co on October 7, 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.*