# Language Reactor vs MASTER COURSE Mgr

The clearest difference is in-app purchases: MASTER COURSE Mgr at none against Language Reactor's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Language Reactor sells 2 in-app purchases, starting at $7.99 per month. MASTER COURSE Mgr asks for nothing beyond the download.

Language Reactor ships an update every 4 days, MASTER COURSE Mgr weekly. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Language Reactor | MASTER COURSE Mgr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/language-reactor-linglass/id6777002920/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Freemium | — |
| Size | 55 MB | 46 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ilia Furtaev](https://appshunter.io/developer/6777002922) | [Morrow World Inc.](https://appshunter.io/developer/1552662827) |

## What reviewers say

### Language Reactor

[App page](https://appshunter.io/ios/app/language-reactor-linglass/id6777002920)

Learn languages by watching videos with dual subtitles and instant contextual translations. Save words, practice with spaced-repetition flashcards, and get AI-powered grammar explanations. Track your progress and master new languages through engaging content.

**Highlights:** Dual subtitles on YouTube, Contextual word translation and pronunciation, AI grammar explanations with CEFR levels, Spaced-repetition flashcards, Progress tracking with stats and heatmap, Support for multiple languages

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $7.99 | per month |
| Premium (Annual) | $59.99 | per year |


### MASTER COURSE Mgr

[App page](https://appshunter.io/ios/app/master-course-mgr/id6793829259)

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

**In-app purchases:** none


## Frequently asked questions

### Is Language Reactor free?

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

### Is MASTER COURSE Mgr free?

MASTER COURSE Mgr is free to download, with no in-app purchases.

### Do Language Reactor or MASTER COURSE Mgr have ads?

Neither Language Reactor nor MASTER COURSE Mgr shows ads.

### Which is updated more often, Language Reactor or MASTER COURSE Mgr?

Language Reactor ships an update every 4 days, and MASTER COURSE Mgr weekly. Most recently, Language Reactor was updated on October 31, 2026 and MASTER COURSE Mgr on October 29, 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.*