# iTrain B737NG vs 737 Systems Study

The clearest difference is price: 737 Systems Study at Free against iTrain B737NG's $17.99. 737 Systems Study also leads on update cadence (every 3 days vs every 5 weeks). iTrain B737NG's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

737 Systems Study is free to download; iTrain B737NG costs $17.99 up front. 737 Systems Study sells 1 one-off in-app purchase. iTrain B737NG asks for nothing beyond the download.

iTrain B737NG ships an update every 5 weeks, 737 Systems Study every 3 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iTrain B737NG | 737 Systems Study |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/itrain-b737ng/id826303298/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Monetization | Paid | — |
| Size | 14 MB | 6 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Flighttrainer Aviation Apps B.V.](https://appshunter.io/developer/1529841212) | [VAROL AKSOY](https://appshunter.io/developer/1441988991) |

## What reviewers say

### iTrain B737NG

[App page](https://appshunter.io/ios/app/itrain-b737ng/id826303298)

This app helps pilots master Boeing 737NG technical knowledge, memory items, and procedures. It offers a comprehensive question bank and focuses on efficient, distraction-free learning for type ratings, interviews, and recurrent training.

**Highlights:** B737NG Technical System Knowledge, NNC Memory Items, Flight Path Patterns & Maneuvers, 800+ Technical Questions, Distraction-Free Interface, Smart Database Updates

**Features:** macOS Compatibility

**In-app purchases:** none


### 737 Systems Study

[App page](https://appshunter.io/ios/app/737-systems-study-ng-and-max/id6817126151)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Access | $19.99 | one-time |


## Frequently asked questions

### Is iTrain B737NG free?

iTrain B737NG costs $17.99, with no in-app purchases.

### Is 737 Systems Study free?

737 Systems Study is free to download, with in-app purchases available.

### Do iTrain B737NG or 737 Systems Study have ads?

Neither iTrain B737NG nor 737 Systems Study shows ads.

### Which is updated more often, iTrain B737NG or 737 Systems Study?

iTrain B737NG ships an update every 5 weeks, and 737 Systems Study every 3 days. Most recently, iTrain B737NG was updated on November 1, 2026 and 737 Systems Study 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.*