# iBOEING Type Rating Prep vs 737 Master Caution The clearest difference is rating: 737 Master Caution at 4.4 against iBOEING Type Rating Prep's 3.4. 737 Master Caution also leads on in-app purchases (none vs 7) and iOS requirement (13.0 vs 16.0). iBOEING Type Rating Prep's advantage is update cadence (weekly vs every 3 months). On price, ratings volume, ads and device support there is nothing between them. Both are free to download. iBOEING Type Rating Prep sells 7 one-off in-app purchases. 737 Master Caution asks for nothing beyond the download. 737 Master Caution holds the better App Store score, 4.4 against 3.4. Both are backed by a comparable volume of ratings — 15 and 7 respectively. iBOEING Type Rating Prep ships an update weekly, 737 Master Caution every 3 months. Both last shipped on October 24, 2026. ## The numbers | Metric | iBOEING Type Rating Prep | 737 Master Caution | | --- | --- | --- | | Price | Free | Free | | Rating | [3.4 (15 ratings)](https://appshunter.io/ios/app/iboeing-type-rating-prep/id1499571547/reviews) | **[4.4 (7 ratings)](https://appshunter.io/ios/app/737-master-caution/id6455042070/reviews)** | | Number of ratings | **15** | 7 | | Positive reviews | 57.1% of reviews | — | | In-app purchases | Yes | **No** | | Ads | No | No | | Update frequency | **Weekly** | Every 3 months | | Monetization | Free with in-app purchases | **Free** | | Size | 66 MB | 2 MB | | Requires iOS | 16.0 | **13.0** | | Devices | iPhone, iPad | **iPhone, iPad, iPod** | | Age rating | 4+ | 4+ | | Developer | [Aircraft Apps LLC](https://appshunter.io/developer/1499571546) | [Studio BabDreams](https://appshunter.io/developer/431517875) | ## What reviewers say ### iBOEING Type Rating Prep [App page](https://appshunter.io/ios/app/iboeing-type-rating-prep/id1499571547) This app offers supplemental flight training for pilots preparing for aircraft type ratings and check rides. It covers various Boeing aircraft systems with interactive quizzes, flashcards, and essential flight planning tools. Premium content is available via in-app purchase for enhanced learning. **Highlights:** Aircraft system mastery, Interactive quizzes with timers, Smart flashcards, Memory items and emergency procedures, Flight planning tools, Custom content builder, Professional aviation calculator **Features:** macOS Compatibility, Vision Pro support **In-app purchases (7)** | Purchase | Price | Billing | | --- | --- | --- | | B747-400 Type Rating Prep | $19.99 | one-time | | B737-300/400/500 Type Rating | $19.99 | one-time | | B757/767 Type Rating Prep | $19.99 | one-time | | Mental Health Guide for Pilots | $19.99 | one-time | | B737-700/800 Type Rating Prep | $39.99 | one-time | | B777 Type Rating Prep | $39.99 | one-time | | B787 Type Rating Prep | $39.99 | one-time | ### 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 iBOEING Type Rating Prep free? iBOEING Type Rating Prep is free to download, with in-app purchases available. ### Is 737 Master Caution free? 737 Master Caution is free to download, with no in-app purchases. ### Which has better reviews, iBOEING Type Rating Prep or 737 Master Caution? 737 Master Caution is rated higher. iBOEING Type Rating Prep averages 3.4 out of 5 from 15 ratings, while 737 Master Caution averages 4.4 from 7 ratings. ### Do iBOEING Type Rating Prep or 737 Master Caution have ads? Neither iBOEING Type Rating Prep nor 737 Master Caution shows ads. ### Which is updated more often, iBOEING Type Rating Prep or 737 Master Caution? iBOEING Type Rating Prep ships an update weekly, and 737 Master Caution every 3 months. Most recently, iBOEING Type Rating Prep was updated on October 24, 2026 and 737 Master Caution on October 24, 2026. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*