# A320 CFDS Trainer Lite vs EASA Part 66 Modules Exam

The clearest difference is review sentiment: EASA Part 66 Modules Exam at 100% against A320 CFDS Trainer Lite's 25%. EASA Part 66 Modules Exam also leads on update cadence (every 6 weeks vs every 3 months). A320 CFDS Trainer Lite's advantage is in-app purchases (none vs 11). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. EASA Part 66 Modules Exam sells 11 one-off in-app purchases. A320 CFDS Trainer Lite asks for nothing beyond the download.

A320 CFDS Trainer Lite ships an update every 3 months, EASA Part 66 Modules Exam every 6 weeks. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | A320 CFDS Trainer Lite | EASA Part 66 Modules Exam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/easa-part-66-modules-exam/id6736773464/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 69 MB | 23 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ERM SIMS LLC](https://appshunter.io/developer/1697141250) | [Sergei Vildanov](https://appshunter.io/developer/1773329159) |

## What reviewers say

### A320 CFDS Trainer Lite

[App page](https://appshunter.io/ios/app/a320-cfds-trainer-lite/id6451204364)

Master the A320 Centralized Fault Display System with this mobile maintenance training app. Practice fault reporting, navigate menus, and access reference pages from related systems. Designed by aviation experts for professionals, it offers offline functionality and an ad-free experience.

**Highlights:** Practice PFR creation, Navigate CFDS menus, Access Normal and Menu Modes, View static reference pages, Offline functionality, Ad-free learning

**Features:** macOS Compatibility

**In-app purchases:** none


### EASA Part 66 Modules Exam

[App page](https://appshunter.io/ios/app/easa-part-66-modules-exam/id6736773464)

Prepare for aviation certification exams with this app. It offers practice tests covering 17 modules, with multiple-choice questions and a time limit. Users can access free modules or purchase additional content for comprehensive study.

**Highlights:** 17 exam modules, Multiple-choice questions, Timed tests, 75% passing score, Free and paid modules, Full access purchase option

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Module 3 | $2.99 | one-time |
| Module 15 | $2.99 | one-time |
| Module 14 | $2.99 | one-time |
| Module 17 | $2.99 | one-time |
| Module 5 | $2.99 | one-time |
| Module 6 | $2.99 | one-time |
| Module 7 | $2.99 | one-time |
| Module 8 | $2.99 | one-time |
| Module 12 | $2.99 | one-time |
| Module 16 | $2.99 | one-time |
| 14 Days Full Access | $14.99 | one-time |


## Frequently asked questions

### Is A320 CFDS Trainer Lite free?

A320 CFDS Trainer Lite is free to download, with no in-app purchases.

### Is EASA Part 66 Modules Exam free?

EASA Part 66 Modules Exam is free to download, with in-app purchases available.

### Do A320 CFDS Trainer Lite or EASA Part 66 Modules Exam have ads?

Neither A320 CFDS Trainer Lite nor EASA Part 66 Modules Exam shows ads.

### Which is updated more often, A320 CFDS Trainer Lite or EASA Part 66 Modules Exam?

A320 CFDS Trainer Lite ships an update every 3 months, and EASA Part 66 Modules Exam every 6 weeks. Most recently, A320 CFDS Trainer Lite was updated on October 12, 2026 and EASA Part 66 Modules Exam on September 30, 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.*