# LibroAI vs EchoLing

The clearest difference is in-app purchases: EchoLing at none against LibroAI's 4. EchoLing also leads on ads (none vs shown) and update cadence (every 3 days vs every 8 days). On price, review sentiment, device support and iOS requirement there is nothing between them.

Both are free to download. LibroAI sells 4 in-app purchases, starting at $2.99 per 7 days. EchoLing asks for nothing beyond the download.

LibroAI ships an update every 8 days, EchoLing every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | LibroAI | EchoLing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/libroai-reading-comprehension/id6758308600/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 98 MB | 32 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Black Box Code LLC](https://appshunter.io/developer/1496668922) | [Xinyu Zhu](https://appshunter.io/developer/1895481236) |

## What reviewers say

### LibroAI

[App page](https://appshunter.io/ios/app/libroai-reading-comprehension/id6758308600)

Learn languages by reading AI-generated stories tailored to your interests and skill level. Instantly translate words with a tap and track your vocabulary growth. Enjoy an immersive and effective learning experience without boring drills.

**Highlights:** AI-generated stories, Instant word translation, 10 language pairs, Progress tracking, Personalized difficulty, Offline mode

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly Offer | $2.99 | per 7 days |
| Premium Weekly | $5.99 | per 7 days |
| Premium Yearly Offer | $12.99 | per year |
| Premium Yearly | $24.99 | per year |


### EchoLing

[App page](https://appshunter.io/ios/app/echoling-sentence-notebook/id6763769304)

Capture and organize English phrases and sentences from your daily life. AI-powered questions help you review saved content, and home screen widgets bring forgotten expressions back into view. Search your collection to easily find what you need.

**Highlights:** Save phrases from any source, Organize with context, AI-generated review questions, Home screen widgets, Searchable collection, No pressure learning

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

**In-app purchases:** none


## Frequently asked questions

### Is LibroAI free?

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

### Is EchoLing free?

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

### Do LibroAI or EchoLing have ads?

LibroAI shows ads; EchoLing does not.

### Which is updated more often, LibroAI or EchoLing?

LibroAI ships an update every 8 days, and EchoLing every 3 days. Most recently, LibroAI was updated on October 31, 2026 and EchoLing on October 31, 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.*