# CPaT Mobile 4 vs E

The clearest difference is rating: E at 5.0 against CPaT Mobile 4's 2.2. E also leads on update cadence (weekly vs every 6 weeks). CPaT Mobile 4's advantage is in-app purchases (none vs 1) and ratings volume (19 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. E sells 1 one-off in-app purchase. CPaT Mobile 4 asks for nothing beyond the download.

E holds the better App Store score, 5.0 against 2.2. That said, the two scores are not equally well evidenced: CPaT Mobile 4 has 19 ratings behind it against 1, so its average is the more settled of the two.

CPaT Mobile 4 ships an update every 6 weeks, E weekly. Both last shipped on November 3, 2026.

## The numbers

| Metric | CPaT Mobile 4 | E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (19 ratings)](https://appshunter.io/ios/app/cpat-mobile-4/id1509075751/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/e-170175-aircraft-apps/id1637315525/reviews)** |
| Number of ratings | **19** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 42 MB | 109 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CPAT GLOBAL, LLC](https://appshunter.io/developer/989600741) | [Aircraft Apps LLC](https://appshunter.io/developer/1499571546) |

## What reviewers say

### CPaT Mobile 4

[App page](https://appshunter.io/ios/app/cpat-mobile-4/id1509075751)

Access your aviation training materials offline. Download courses to study at your convenience and sync your progress back to the CPaT Learning Management System when you have an internet connection.

**Highlights:** Offline training material access, Downloadable course content, Training progress tracking, Sync with CPaT LMS, Interactive training modules

**Features:** macOS Compatibility

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-170175-aircraft-apps/id1637315525)

This app provides supplemental study material for Embraer E-170/175 aircraft type ratings. It offers flashcards, quizzes, and memory items for pilots preparing for exams and recurrent training. Features include weather data, distance calculations, and conversion tools.

**Highlights:** Aircraft system flashcards, Multiple choice quizzes with timer, Memory items study, Aircraft limitations study, Worldwide weather and METAR/TAF, Airport distance calculator, Aircraft conversion calculator

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| E-170175 Type Rating Prep | $19.99 | one-time |


## Frequently asked questions

### Is CPaT Mobile 4 free?

CPaT Mobile 4 is free to download, with no in-app purchases.

### Is E free?

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

### Which has better reviews, CPaT Mobile 4 or E?

E is rated higher. CPaT Mobile 4 averages 2.2 out of 5 from 19 ratings, while E averages 5.0 from 1 ratings.

### Do CPaT Mobile 4 or E have ads?

Neither CPaT Mobile 4 nor E shows ads.

### Which is updated more often, CPaT Mobile 4 or E?

CPaT Mobile 4 ships an update every 6 weeks, and E weekly. Most recently, CPaT Mobile 4 was updated on November 3, 2026 and E on November 3, 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.*