# 737 Master Caution vs 737 Virtual Panel

The clearest difference is price: 737 Master Caution at Free against 737 Virtual Panel's $19.99. 737 Virtual Panel's advantage is update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

737 Master Caution is free to download; 737 Virtual Panel costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

737 Master Caution ships an update every 3 months, 737 Virtual Panel every 3 weeks. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 737 Master Caution | 737 Virtual Panel |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/737-master-caution/id6455042070/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 2 MB | 2.9 GB |
| 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) | [Jorge Gonzalez Galvan](https://appshunter.io/developer/915982572) |

## 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


### 737 Virtual Panel

[App page](https://appshunter.io/ios/app/737-virtual-panel/id6736882644)

**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 737 Virtual Panel free?

737 Virtual Panel costs $19.99, with no in-app purchases.

### Do 737 Master Caution or 737 Virtual Panel have ads?

Neither 737 Master Caution nor 737 Virtual Panel shows ads.

### Which is updated more often, 737 Master Caution or 737 Virtual Panel?

737 Master Caution ships an update every 3 months, and 737 Virtual Panel every 3 weeks. Most recently, 737 Master Caution was updated on October 15, 2026 and 737 Virtual Panel on October 1, 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.*