# Language Reactor vs KORTEX

The clearest difference is ads: Language Reactor at none against KORTEX's shown. Language Reactor also leads on ratings volume (3.7K vs 8) and iOS requirement (13.0 vs 15.0). KORTEX's advantage is review sentiment (100% vs 66%) and rating (5.0 vs 4.8). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Language Reactor sells 12 in-app purchases, starting at $3.49 per month and KORTEX sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

KORTEX holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Language Reactor has 3.7K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 66% of Language Reactor's written reviews are positive against 100% of KORTEX's.

Language Reactor ships an update every 3 weeks, KORTEX monthly. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Language Reactor | KORTEX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3.7K ratings)](https://appshunter.io/ios/app/language-reactor-sounter/id1505600864/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/kortex-flashcards/id6751011222/reviews)** |
| Number of ratings | **3.7K** | 8 |
| Positive reviews | 66.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 120 MB | 55 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | +4 |
| Developer | [David Galarza](https://appshunter.io/developer/1504772812) | [ZEST GLOBAL LTDA](https://appshunter.io/developer/1713735783) |

## What reviewers say

### Language Reactor

[App page](https://appshunter.io/ios/app/language-reactor-sounter/id1505600864)

Learn languages through the power of music with interactive lessons based on your favorite songs. This app offers real-time lyric exercises, vocabulary building, and progress tracking to make language acquisition engaging and effective. It's an immersive alternative to traditional study methods.

**Highlights:** Personalized music-based courses, Real-time lyric exercises, Offline learning mode, Adaptive difficulty, Vocabulary builder, Progress tracking

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.49 | per month |
| Monthly | $11.99 | per month |
| Biannual | $14.99 | per 6 months |
| Sounter Premium Welcome Offer | $19.99 | per year |
| Annual Subscription | $23.99 | per year |
| Sounter Premium | $24.99 | per year |
| Biannual | $40.49 | per 6 months |
| Biannual | $50.99 | per 6 months |
| Annual Subscription | $59.99 | per year |
| Biannual | $59.99 | per 6 months |
| Annual Subscription | $69.99 | per year |
| Lifetime - Premium | $99.99 | one-time |

**What reviewers like**

- 👍 User-friendly interface
- 🎶 Engaging music-based learning
- 💯 Effective language learning
- 🔥 Excellent app
- 🤩 Fantastic app

**What reviewers complain about**

- 🐛 Technical issues (crashes, bugs, songs not loading)
- 💰 Subscription concerns (hidden fees, difficult to cancel)
- 🇧🇷 Lack of support for certain languages

**Reported bugs**

- Repeated lessons and inability to progress
- Automatic subscription charges without user consent

**Requested features**

- Add writing practice feature
- Improve accent and pronunciation feedback
- Provide more language options


### KORTEX

[App page](https://appshunter.io/ios/app/kortex-flashcards/id6751011222)

This study app uses spaced repetition to help users memorize information for languages, exams, and contests. It offers an intuitive interface for efficient long-term retention of knowledge.

**Highlights:** Spaced repetition learning, Memorization and retention, Language learning support, Exam and contest preparation, Intuitive and simple design, Study on the go

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Mensual | $4.99 | per month |
| Premium Anual | $34.90 | per year |


## Frequently asked questions

### Is Language Reactor free?

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

### Is KORTEX free?

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

### Which has better reviews, Language Reactor or KORTEX?

KORTEX is rated higher. Language Reactor averages 4.8 out of 5 from 3.7K ratings, while KORTEX averages 5.0 from 8 ratings.

### Do Language Reactor or KORTEX have ads?

KORTEX shows ads; Language Reactor does not.

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

Language Reactor ships an update every 3 weeks, and KORTEX monthly. Most recently, Language Reactor was updated on October 14, 2026 and KORTEX on October 8, 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.*