Comparison

iTrain B737NG 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 B737NG

This app helps pilots master Boeing 737NG technical knowledge, memory items, and procedures. It offers a comprehensive question bank and focuses on efficient, distraction-free learning for type ratings, interviews, and recurrent training.

Highlights
  • B737NG Technical System Knowledge
  • NNC Memory Items
  • Flight Path Patterns & Maneuvers
  • 800+ Technical Questions
  • Distraction-Free Interface
  • Smart Database Updates
Features
Read full description

iTrain B737NG – The Ultimate Boeing 737NG Pilot Training App Designed for both new and experienced Boeing 737NG pilots, iTrain B737NG helps you master essential technical knowledge, memory items and procedures for your type rating, airline job interview, recurrent training, and command upgrade or annual check ride. Key Features: • B737NG Technical System Knowledge – Deepen your understanding of the Boeing 737NG aircraft systems • NNC Memory Items – Learn the critical non-normal checklist memory items by heart • Flight Path Patterns & Maneuvers – Master both the normal and non-normal flight maneuvers • 800+ Technical Questions – Practice with a comprehensive question bank Focused, Efficient Learning: • Distraction-Free Interface – Study without interruptions • Optimized for All Pilots – Suitable for both trainees and experienced captains • Smart Database Updates – Automatic question bank updates ensure accuracy Developed by Experts. Created by three seasoned B737-700/800 captains with 35,000+ flight hours, iTrain B737NG is designed to enhance your learning curve and prepare you for real-world operations. Download iTrain B737NG today and take your B737 knowledge to the next level!

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 B737NG4 screens
737 Master Caution4 screens

Verdict

The call

The clearest difference is price: 737 Master Caution at Free against iTrain B737NG's $17.99. 737 Master Caution also leads on iOS requirement (13.0 vs 18.0). iTrain B737NG's advantage is rating (4.9 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 B737NG 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 B737NG holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 9 and 7 respectively.

UpkeepUpdate frequency

iTrain B737NG ships an update every 5 weeks, 737 Master Caution every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
iTrain B737NG versus 737 Master Caution: the parameters behind the verdict, then further details
ParameteriTrain B737NG737 Master Caution
Price$17.99Free — better
Rating4.9 (9 ratings) — better4.4 (7 ratings)
Positive reviews83.3% of reviews—
Number of ratings9 — better7
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size14 MB2 MB
Age rating4+4+
DeveloperFlighttrainer Aviation Apps B.V.Studio BabDreams

Customer experience

iTrain B737NG

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

737 Master Caution

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

In-app purchases

None

iTrain B737NG

No in-app purchases

None

737 Master Caution

No in-app purchases

Questions

Is iTrain B737NG free?
iTrain B737NG 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 B737NG or 737 Master Caution?
iTrain B737NG is rated higher. iTrain B737NG averages 4.9 out of 5 from 9 ratings, while 737 Master Caution averages 4.4 from 7 ratings.
Do iTrain B737NG or 737 Master Caution have ads?
Neither iTrain B737NG nor 737 Master Caution shows ads.
Which is updated more often, iTrain B737NG or 737 Master Caution?
iTrain B737NG ships an update every 5 weeks, and 737 Master Caution every 3 months. Most recently, iTrain B737NG was updated on October 26, 2026 and 737 Master Caution on October 24, 2026.

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