# 737 NG FMS Tutorial vs 737 Master Caution The clearest difference is price: 737 Master Caution at Free against 737 NG FMS Tutorial's $29.99. 737 Master Caution also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.1). 737 NG FMS Tutorial's advantage is update cadence (monthly vs every 3 months). On rating, ratings volume, ads and in-app purchases there is nothing between them. 737 Master Caution is free to download; 737 NG FMS Tutorial costs $29.99 up front. Neither carries in-app purchases, so what you see is what you pay. On the App Store both sit at effectively the same score — 4.3 for 737 NG FMS Tutorial against 4.4 for 737 Master Caution. Both are backed by a comparable volume of ratings — 8 and 7 respectively. 737 NG FMS Tutorial ships an update monthly, 737 Master Caution every 3 months. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively. ## The numbers | Metric | 737 NG FMS Tutorial | 737 Master Caution | | --- | --- | --- | | Price | $29.99 | **Free** | | Rating | [4.3 (8 ratings)](https://appshunter.io/ios/app/737-ng-fms-tutorial/id6451326145/reviews) | **[4.4 (7 ratings)](https://appshunter.io/ios/app/737-master-caution/id6455042070/reviews)** | | Number of ratings | **8** | 7 | | Positive reviews | 100.0% of reviews | — | | In-app purchases | No | No | | Ads | No | No | | Update frequency | **Monthly** | Every 3 months | | Monetization | Paid | **Free** | | Size | 3 MB | 2 MB | | Requires iOS | 16.1 | **13.0** | | Devices | iPad | **iPhone, iPad, iPod** | | Age rating | 4+ | 4+ | | Developer | [Terence Way](https://appshunter.io/developer/1576081195) | [Studio BabDreams](https://appshunter.io/developer/431517875) | ## What reviewers say ### 737 NG FMS Tutorial [App page](https://appshunter.io/ios/app/737-ng-fms-tutorial/id6451326145) Learn the complete pre-flight procedures for a Boeing 737 NG, guided by an experienced pilot and instructor. Explore less common flight scenarios like holds and alternates with a full-featured emulator. **Highlights:** Comprehensive pre-flight sequence training, Expert instruction from a Boeing 737 pilot, Full-featured flight management system emulator, Learn holds and alternates, Hawaii to Los Angeles flight scenario **Features:** macOS Compatibility, Vision Pro support **In-app purchases:** none ### 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 ## Frequently asked questions ### Is 737 NG FMS Tutorial free? 737 NG FMS Tutorial costs $29.99, with no in-app purchases. ### Is 737 Master Caution free? 737 Master Caution is free to download, with no in-app purchases. ### Which has better reviews, 737 NG FMS Tutorial or 737 Master Caution? 737 Master Caution is rated higher. 737 NG FMS Tutorial averages 4.3 out of 5 from 8 ratings, while 737 Master Caution averages 4.4 from 7 ratings. ### Do 737 NG FMS Tutorial or 737 Master Caution have ads? Neither 737 NG FMS Tutorial nor 737 Master Caution shows ads. ### Which is updated more often, 737 NG FMS Tutorial or 737 Master Caution? 737 NG FMS Tutorial ships an update monthly, and 737 Master Caution every 3 months. Most recently, 737 NG FMS Tutorial was updated on October 19, 2026 and 737 Master Caution on October 15, 2026. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*