# Language Reactor vs Curios

The clearest difference is ads: Language Reactor at none against Curios's shown. Language Reactor also leads on update cadence (every 8 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Language Reactor sells 6 in-app purchases, starting at $11.90 per month and Curios sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Language Reactor ships an update every 8 days, Curios every 2 months. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Language Reactor | Curios |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (873 ratings)](https://appshunter.io/ios/app/language-reactor-playlingo/id6743090216/reviews)** | — |
| Number of ratings | **873** | — |
| Positive reviews | 82.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 117 MB | 8 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Alexey Nenastyev](https://appshunter.io/developer/1395387065) | [Shunsuke Asai](https://appshunter.io/developer/1826470278) |

## What reviewers say

### Language Reactor

[App page](https://appshunter.io/ios/app/language-reactor-playlingo/id6743090216)

Learn languages by watching YouTube videos, podcasts, and movies. This app provides seamless AI-powered translations and an AI tutor to explain slang and idioms. Practice pronunciation with real-time transcriptions and sentence-by-sentence subtitles.

**Highlights:** Learn from real YouTube videos, podcasts, and movies, AI-powered translations in 80+ languages, AI Assistant for instant explanations, Shadowing practice for pronunciation, Sentence-by-sentence synchronized subtitles, Part-of-speech highlighting for grammar

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PlayLingo Pro | $11.90 | per month |
| PlayLingo PRO | $34.99 | per 6 months |
| PlayLingo Pro | $74.99 | per year |
| PlayLingo Pro | $74.99 | per year |
| PlayLingo Pro | $74.99 | per year |
| PlayLingo Pro Family | $119.99 | per year |


### Curios

[App page](https://appshunter.io/ios/app/curios/id6755347548)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 買い切りPremium | $5.99 | one-time |


## Frequently asked questions

### Is Language Reactor free?

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

### Is Curios free?

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

### Do Language Reactor or Curios have ads?

Curios shows ads; Language Reactor does not.

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

Language Reactor ships an update every 8 days, and Curios every 2 months. Most recently, Language Reactor was updated on November 8, 2026 and Curios on October 30, 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.*