Comparison

iTrain B737MAX vs 737 Master Caution

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iTrain B737MAX

Expand your technical knowledge of the Boeing B737MAX with over 800 questions. This app helps you train memory items, system knowledge, and maneuvers to prepare for interviews, grading, or exams. Its interface is designed for focused learning for both experienced and trainee pilots.

Highlights
  • Boeing B737MAX technical knowledge expansion
  • NNC memory items training
  • System knowledge and flightpath patterns
  • Non-normal maneuvers preparation
  • Over 800 technical questions
  • Automated database updates
Features
Read full description

- Expand your technical knowledge of the Boeing B737MAX. - Train the NNC memory items, system knowledge, flightpath patterns and non-normal maneuvers. - Prepare for a job interview, grading or exam. iTrain B737MAX is an app that will help you with all of the above. More than 800 technical questions are available! Questions are presented in a easy, no frills, no distractions manner in order to let you fully concentrate on the job at hand: know the aircraft and the procedures. The NNC Memory items, non-normal maneuvers and flight path patterns can be memorized by use of a specially designed interface for use by both experienced pilots and trainee-pilots. Therefore, iTrain B737MAX can be used by any pilot! iTrain B737MAX has an automated database update system. When a question has been altered, added or deleted by our support team, the questions database in the app will be updated automatically as soon as you open the app or go to the main screen of the app. iTrain B737MAX has been developed by three experienced B737-700/800 captains totalling over 35.000 flight hours, trying to make a difference to your learning curve and knowledge.

About

737 Master Caution

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
Read full description

This app references more than 200 warning lights and messages of the B737 Classic, NG and MAX families. You are a pilot preparing your initial 737 type rating training, or an aviation enthusiast, or a flight simulator fan. You should enjoy this app. - Warning lights are grouped by FCOM chapters. - You may filter warning lights by airplane family / generation (Classic, NG or MAX). - Full text search to find a specific light. - Add your personal notes for each light and use the app as a notebook. - Place a bookmark to specific warning lights. You will also find 4 other tools, as reference : - A complete list of abbreviations with more than 400 definitions. - Full explanation of more than 100 FMC messages. - Position of more than 500 circuit breakers, sorted by ATA codes or by panels. - List of all electrical buses and more than 500 associated services. A great tool during your initial type rating training or during a refresher later. For training purposes ONLY. Do not use in-flight. Should you spot any error or have any suggestion, feel free to contact : support@babdreams.com Enjoy.

Screenshots

iTrain B737MAX4 screens
737 Master Caution4 screens

Verdict

The call

The clearest difference is price: 737 Master Caution at Free against iTrain B737MAX's $17.99. 737 Master Caution also leads on iOS requirement (13.0 vs 18.6). iTrain B737MAX's advantage is rating (4.7 vs 4.4) and update cadence (every 5 weeks vs every 3 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

737 Master Caution is free to download; iTrain B737MAX costs $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

iTrain B737MAX holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 3 and 7 respectively.

UpkeepUpdate frequency

iTrain B737MAX ships an update every 5 weeks, 737 Master Caution every 3 months. The most recent releases landed on August 16, 2026 and September 10, 2026 respectively.

Scorecard5 real differences · 4 level
iTrain B737MAX versus 737 Master Caution: the parameters behind the verdict, then further details
ParameteriTrain B737MAX737 Master Caution
Price$17.99Free — better
Rating4.7 (3 ratings) — better4.4 (7 ratings)
Number of ratings37 — better
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.613.0 — better
Further details — not scored
Size14 MB2 MB
Age rating4+4+
DeveloperFlighttrainer Aviation Apps B.V.Studio BabDreams

Customer experience

iTrain B737MAX

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

737 Master Caution

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%

In-app purchases

None

iTrain B737MAX

No in-app purchases

None

737 Master Caution

No in-app purchases

Questions

Is iTrain B737MAX free?
iTrain B737MAX costs $17.99, 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, iTrain B737MAX or 737 Master Caution?
iTrain B737MAX is rated higher. iTrain B737MAX averages 4.7 out of 5 from 3 ratings, while 737 Master Caution averages 4.4 from 7 ratings.
Do iTrain B737MAX or 737 Master Caution have ads?
Neither iTrain B737MAX nor 737 Master Caution shows ads.
Which is updated more often, iTrain B737MAX or 737 Master Caution?
iTrain B737MAX ships an update every 5 weeks, and 737 Master Caution every 3 months. Most recently, iTrain B737MAX was updated on August 16, 2026 and 737 Master Caution on September 10, 2026.

Other comparisons