# 737 Master Caution vs Boeing 737 Type Rating Prep

The clearest difference is rating: Boeing 737 Type Rating Prep at 5.0 against 737 Master Caution's 4.4. 737 Master Caution's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Boeing 737 Type Rating Prep sells 2 in-app purchases, starting at $5.99 per 7 days. 737 Master Caution asks for nothing beyond the download.

Boeing 737 Type Rating Prep holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

737 Master Caution ships an update every 3 months, Boeing 737 Type Rating Prep every 4 months. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 737 Master Caution | Boeing 737 Type Rating Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (7 ratings)](https://appshunter.io/ios/app/737-master-caution/id6455042070/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/boeing-737-type-rating-prep/id6745637462/reviews)** |
| Number of ratings | **7** | 2 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 33 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Studio BabDreams](https://appshunter.io/developer/431517875) | [Vavien Technology Limited](https://appshunter.io/developer/1236191276) |

## What reviewers say

### 737 Master Caution

[App page](https://appshunter.io/ios/app/737-master-caution/id6455042070)

This app provides a comprehensive reference for over 200 warning lights and messages across B737 Classic, NG, and MAX aircraft families. It includes tools for abbreviations, FMC messages, circuit breakers, and electrical buses, aiding pilot training and aviation enthusiasts.

**Highlights:** References over 200 B737 warning lights and messages, Filter by aircraft family (Classic, NG, MAX), Full text search for specific lights, Personal notes and bookmarking, Reference tools for abbreviations, FMC messages, circuit breakers, and electrical buses

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

**In-app purchases:** none


### Boeing 737 Type Rating Prep

[App page](https://appshunter.io/ios/app/boeing-737-type-rating-prep/id6745637462)

Master Boeing 737 systems, memory items, and procedures for type ratings, airline assessments, and recurrent training. Features over 700 questions, smart practice modes, and mock exams designed by aviation professionals.

**Highlights:** 700+ exam-style questions, 737 NG & MAX differences, Smart practice mode, Detailed explanations, Mock check ride exams, Progress tracking, Dark mode support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week Premium (1 Week) | $5.99 | per 7 days |
| Yearly Premium (1 Year) | $19.99 | per year |


## Frequently asked questions

### Is 737 Master Caution free?

737 Master Caution is free to download, with no in-app purchases.

### Is Boeing 737 Type Rating Prep free?

Boeing 737 Type Rating Prep is free to download, with in-app purchases available.

### Which has better reviews, 737 Master Caution or Boeing 737 Type Rating Prep?

Boeing 737 Type Rating Prep is rated higher. 737 Master Caution averages 4.4 out of 5 from 7 ratings, while Boeing 737 Type Rating Prep averages 5.0 from 2 ratings.

### Do 737 Master Caution or Boeing 737 Type Rating Prep have ads?

Neither 737 Master Caution nor Boeing 737 Type Rating Prep shows ads.

### Which is updated more often, 737 Master Caution or Boeing 737 Type Rating Prep?

737 Master Caution ships an update every 3 months, and Boeing 737 Type Rating Prep every 4 months. Most recently, 737 Master Caution was updated on October 24, 2026 and Boeing 737 Type Rating Prep 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.*