# COR A Teacher vs TEFPrep Pro

The clearest difference is in-app purchases: COR A Teacher at none against TEFPrep Pro's 2. COR A Teacher also leads on iOS requirement (12.4 vs 16.0). TEFPrep Pro's advantage is update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. TEFPrep Pro sells 2 in-app purchases, starting at $9.99 per month. COR A Teacher asks for nothing beyond the download.

COR A Teacher ships an update every 3 weeks, TEFPrep Pro weekly. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | COR A Teacher | TEFPrep Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tefprep-pro/id6758561132/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Freemium |
| Size | 50 MB | 43 MB |
| Requires iOS | **12.4** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [HighScope Educational Research Foundation](https://appshunter.io/developer/1421389000) | [Ankur Sharma](https://appshunter.io/developer/1873641964) |

## What reviewers say

### COR A Teacher

[App page](https://appshunter.io/ios/app/cor-a-teacher/id6462117925)

**Features:** macOS Compatibility

**In-app purchases:** none


### TEFPrep Pro

[App page](https://appshunter.io/ios/app/tefprep-pro/id6758561132)

Prepare for the French language certification exam with comprehensive practice tests and detailed explanations. Track your progress and simulate real exam conditions across all difficulty levels.

**Highlights:** Comprehensive practice papers, Interactive MCQ tests, Detailed answer explanations, Progress tracking, Timed exam simulation, All difficulty levels (A1-C2)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TEFPrep Pro Monthly | $9.99 | per month |
| TEFPrep Pro Yearly | $59.99 | per year |


## Frequently asked questions

### Is COR A Teacher free?

COR A Teacher is free to download, with no in-app purchases.

### Is TEFPrep Pro free?

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

### Do COR A Teacher or TEFPrep Pro have ads?

Neither COR A Teacher nor TEFPrep Pro shows ads.

### Which is updated more often, COR A Teacher or TEFPrep Pro?

COR A Teacher ships an update every 3 weeks, and TEFPrep Pro weekly. Most recently, COR A Teacher was updated on October 9, 2026 and TEFPrep Pro on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*