# 英文腦 KTEOC vs Fossil Identifier

The clearest difference is in-app purchases: 英文腦 KTEOC at none against Fossil Identifier's 2. 英文腦 KTEOC also leads on iOS requirement (9.0 vs 17.0). Fossil Identifier's advantage is update cadence (every 6 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Fossil Identifier sells 2 in-app purchases, starting at $6.99 per 7 days. 英文腦 KTEOC asks for nothing beyond the download.

英文腦 KTEOC ships an update every 5 months, Fossil Identifier every 6 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 英文腦 KTEOC | Fossil Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/kteoc/id1030240890/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 21 MB | 5 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KNOWLETECH CO.](https://appshunter.io/developer/1030240889) | [Burak Guner](https://appshunter.io/developer/1776580422) |

## What reviewers say

### 英文腦 KTEOC

[App page](https://appshunter.io/ios/app/kteoc/id1030240890)

Transform any English text into an interactive audiobook with detailed analysis and pronunciation feedback. Practice speaking through open-ended conversations with AI and receive instant corrections for grammar and pronunciation. Improve your writing with real-time sentence correction and vocabulary usage checks.

**Highlights:** Convert text to audiobooks, Real-time pronunciation scoring, AI-powered conversational practice, Instant grammar and usage correction, Sentence and vocabulary analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Fossil Identifier

[App page](https://appshunter.io/ios/app/fossil-identifier-dino-scan/id6758826310)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $6.99 | per 7 days |
| Yearly Premium | $24.99 | per year |


## Frequently asked questions

### Is 英文腦 KTEOC free?

英文腦 KTEOC is free to download, with no in-app purchases.

### Is Fossil Identifier free?

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

### Do 英文腦 KTEOC or Fossil Identifier have ads?

Neither 英文腦 KTEOC nor Fossil Identifier shows ads.

### Which is updated more often, 英文腦 KTEOC or Fossil Identifier?

英文腦 KTEOC ships an update every 5 months, and Fossil Identifier every 6 weeks. Most recently, 英文腦 KTEOC was updated on October 24, 2026 and Fossil Identifier on October 28, 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.*