# INYU vs Echo Lang

The clearest difference is in-app purchases: Echo Lang at none against INYU's 4. INYU's advantage is update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. INYU sells 4 in-app purchases, starting at $9.99 per month. Echo Lang asks for nothing beyond the download.

INYU ships an update every 3 days, Echo Lang every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | INYU | Echo Lang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (3 ratings)](https://appshunter.io/ios/app/inyu-immersive-language-space/id6761154760/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 92 MB | 22 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [筠尧 吴](https://appshunter.io/developer/1887098282) | [阳帝 李](https://appshunter.io/developer/6772016398) |

## What reviewers say

### INYU

[App page](https://appshunter.io/ios/app/inyu-immersive-language-space/id6761154760)

This app offers an immersive language learning experience powered by AI. It focuses on communication and understanding through real-time expression refinement and personalized quizzes. Engage in deep discussions, create stories, and build your personal expression bank.

**Highlights:** AI-powered language learning, Immersive communication space, Real-time expression refinement, Personal expression bank, Interactive quizzes, Storytelling and discussion modules

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| INYU GLOW Monthly | $9.99 | per month |
| INYU DAWN Monthly | $19.99 | per month |
| INYU GLOW Annual | $79.99 | per year |
| INYU DAWN Annual | $159.99 | per year |


### Echo Lang

[App page](https://appshunter.io/ios/app/echo-lang-polyglot-listening/id6772065542)

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

**In-app purchases:** none


## Frequently asked questions

### Is INYU free?

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

### Is Echo Lang free?

Echo Lang is free to download, with no in-app purchases.

### Do INYU or Echo Lang have ads?

Neither INYU nor Echo Lang shows ads.

### Which is updated more often, INYU or Echo Lang?

INYU ships an update every 3 days, and Echo Lang every 3 weeks. Most recently, INYU was updated on October 24, 2026 and Echo Lang on October 25, 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.*