# Language Reactor vs Fastlingo

The clearest difference is ads: Language Reactor at none against Fastlingo's shown. Language Reactor also leads on ratings volume (3.7K vs 1) and iOS requirement (13.0 vs 15.0). Fastlingo's advantage is 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 Fastlingo sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Fastlingo 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 1, so its average is the more settled of the two.

Language Reactor ships an update every 3 weeks, Fastlingo every 4 weeks. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Language Reactor | Fastlingo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3.7K ratings)](https://appshunter.io/ios/app/language-reactor-sounter/id1505600864/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fastlingo/id6743956936/reviews)** |
| Number of ratings | **3.7K** | 1 |
| Positive reviews | 66.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 120 MB | 38 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) | [Mihai Ionescu](https://appshunter.io/developer/1805327977) |

## 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


### Fastlingo

[App page](https://appshunter.io/ios/app/fastlingo/id6743956936)

Learn languages through a structured progression of 10,000 carefully-graded sentences, each with concise grammar notes. This app offers a calm, consistent learning experience designed to prevent burnout and build confidence from beginner to intermediate levels.

**Highlights:** 10,000 graded sentences, Concise grammar notes, Continuous progression, Micro-learning design, Four languages available, Pronunciation practice, Voice recording and recognition

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Renewable monthly subscription | $3.99 | per month |


## Frequently asked questions

### Is Language Reactor free?

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

### Is Fastlingo free?

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

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

Fastlingo is rated higher. Language Reactor averages 4.8 out of 5 from 3.7K ratings, while Fastlingo averages 5.0 from 1 ratings.

### Do Language Reactor or Fastlingo have ads?

Fastlingo shows ads; Language Reactor does not.

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

Language Reactor ships an update every 3 weeks, and Fastlingo every 4 weeks. Most recently, Language Reactor was updated on October 19, 2026 and Fastlingo on October 10, 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.*