# React Native Mastery vs EGK OrganLens AR

The clearest difference is price: React Native Mastery at Free against EGK OrganLens AR's $19.99. React Native Mastery also leads on update cadence (weekly vs every 6 months) and iOS requirement (13.0 vs 18.4). On ads, in-app purchases and device support there is nothing between them.

React Native Mastery is free to download; EGK OrganLens AR costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

React Native Mastery ships an update weekly, EGK OrganLens AR every 6 months. Both last shipped on September 12, 2026.

## The numbers

| Metric | React Native Mastery | EGK OrganLens AR |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 months |
| Size | 25 MB | 4 MB |
| Requires iOS | **13.0** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Nouman Imran](https://appshunter.io/developer/1742728146) | [Isaac Eng Gian Khor](https://appshunter.io/developer/1808933315) |

## What reviewers say

### React Native Mastery

[App page](https://appshunter.io/ios/app/react-native-mastery/id6560105366)

**Features:** macOS Compatibility

**In-app purchases:** none


### EGK OrganLens AR

[App page](https://appshunter.io/ios/app/egk-organlens-ar/id6748438449)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is React Native Mastery free?

React Native Mastery is free to download, with no in-app purchases.

### Is EGK OrganLens AR free?

EGK OrganLens AR costs $19.99, with no in-app purchases.

### Do React Native Mastery or EGK OrganLens AR have ads?

Neither React Native Mastery nor EGK OrganLens AR shows ads.

### Which is updated more often, React Native Mastery or EGK OrganLens AR?

React Native Mastery ships an update weekly, and EGK OrganLens AR every 6 months. Most recently, React Native Mastery was updated on September 12, 2026 and EGK OrganLens AR on September 12, 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.*