# 737 Master Caution vs B737 Type Rating Flashcards

The clearest difference is price: 737 Master Caution at Free against B737 Type Rating Flashcards's $9.99. 737 Master Caution also leads on update cadence (every 3 months vs every 19 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

737 Master Caution is free to download; B737 Type Rating Flashcards costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

737 Master Caution ships an update every 3 months, B737 Type Rating Flashcards every 19 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | 737 Master Caution | B737 Type Rating Flashcards |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/737-master-caution/id6455042070/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | **Free** | Paid |
| Size | 2 MB | 8 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Studio BabDreams](https://appshunter.io/developer/431517875) | [ASA](https://appshunter.io/developer/334278379) |

## 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


### B737 Type Rating Flashcards

[App page](https://appshunter.io/ios/app/b737-type-rating-flashcards/id6478992837)

This app provides over 800 Q&A flashcards for pilots preparing for their Boeing 737 type rating practical exam. It covers limitations, aircraft systems, and other critical topics, offering succinct answers researched from FAA documents and expert interviews.

**Highlights:** Over 800 exam-style questions and answers, Focus on limitations and aircraft systems, Research-backed answers from FAA documents, Customizable study sessions with marked questions, Covers all B737 type rating test subjects

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

**In-app purchases:** none


## Frequently asked questions

### Is 737 Master Caution free?

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

### Is B737 Type Rating Flashcards free?

B737 Type Rating Flashcards costs $9.99, with no in-app purchases.

### Do 737 Master Caution or B737 Type Rating Flashcards have ads?

Neither 737 Master Caution nor B737 Type Rating Flashcards shows ads.

### Which is updated more often, 737 Master Caution or B737 Type Rating Flashcards?

737 Master Caution ships an update every 3 months, and B737 Type Rating Flashcards every 19 months. Most recently, 737 Master Caution was updated on October 24, 2026 and B737 Type Rating Flashcards on October 22, 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.*