# Language Reactor vs Shadow

Language Reactor and Shadow are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Language Reactor sells 2 in-app purchases, starting at $7.99 per month and Shadow sells 3 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Language Reactor | Shadow |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | Freemium | — |
| Size | 55 MB | 275 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Ilia Furtaev](https://appshunter.io/developer/6777002922) | [Natalia Kosianova](https://appshunter.io/developer/6801043040) |

## 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 |


### Shadow

[App page](https://appshunter.io/ios/app/shadow-english-shadowing/id6801043038)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shadow Premium | $24.99 | per month |
| 30 generations | $4.99 | one-time |
| 100 generations | $12.99 | one-time |


## Frequently asked questions

### Is Language Reactor free?

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

### Is Shadow free?

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

### Do Language Reactor or Shadow have ads?

Neither Language Reactor nor Shadow shows ads.

### Which is updated more often, Language Reactor or Shadow?

Language Reactor ships an update every 4 days, and Shadow every 4 days. Most recently, Language Reactor was updated on October 31, 2026 and Shadow on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*