Comparison

Boeing 737NG Normal Procedures 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

Boeing 737NG Normal Procedures

This app visualizes normal cockpit procedures for the Boeing 737NG, aiding in flight and simulator training. It helps users learn and remember action sequences and control locations through interactive hotspots and detailed 360° cockpit views. Full access requires a subscription.

Highlights
  • Normal procedures visualization
  • Interactive cockpit controls
  • Detailed 360° cockpit view
  • Offline availability
  • Power-up to shutdown procedures
Read full description

**This app requires subscription, available as an in app purchase, to gain full access to the training content.** The Boeing 737NG Normal Procedures Trainer app is a great training tool for preparation for initial and recurrent type rating, and allows efficient preparation before flight or simulator training. The Boeing 737NG Normal Procedures Trainer app visualizes flows of normal cockpit procedures to help you learn and remember the order of actions and locate cockpit controls. The actions are located by hotspots that trigger pop-up messages with expanded procedures. Explore all hotspots and learn about all procedures from power up to shutdown. All procedures and flows are shown in a real cockpit setting. FEATURES: • normal procedures from power-up to shutdown* • need-to-know limitations • offline availability • highly detailed 360° cockpit Ace your cockpit performance. Train anytime. Train anywhere. Full Access subscription • This app requires subscription, available as an in app purchase, to gain full access to the training content • Subscriptions are $39.99 USD monthly, $49.99 USD quarterly and $89.99 USD annually** • Payment will be charged to iTunes Account at confirmation of purchase • You will have full access to the procedure trainer for the duration of the subscription • Subscription automatically renews for the same price and duration period as the original "one month"/"three months"/"one year" package unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen package (monthly, quarterly or yearly package) • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase • No cancellation of the current subscription is allowed during active subscription period • You may cancel a subscription during its free trial period via the subscription setting through your iTunes account. This must be done 24 hours before the end of the subscription period to avoid being charged. Please visit https://support.apple.com/en-us/HT202039 for more information • You may turn off the auto-renewal of your subscription via your iTunes Account Settings. However, you are not able to cancel the current subscription during its active period Links to our Terms of Service and Privacy Policy can be found below Privacy Policy http://ael.aero/privacy/ Terms of Use: http://ael.aero/terms/ * The procedure trainer was made in cooperation with Primera Air. This procedure trainer is for training purpose only and official aircraft documentation shall always be consulted before operating the aircraft. The procedures shown in this trainer are made with reference to Primera Air documentation. ** Prices are equal to the value that "Apple's App Store Pricing Matrix" determines as the equivalent of the subscription price in $ USD

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

737 Master Caution4 screens

Verdict

The call

The clearest difference is rating: 737 Master Caution at 4.4 against Boeing 737NG Normal Procedures's 3.8. 737 Master Caution also leads on in-app purchases (none vs 3) and update cadence (every 3 months vs every 14 months). Boeing 737NG Normal Procedures's advantage is ratings volume (41 vs 7) and iOS requirement (7.0 vs 13.0). On price and ads 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

Both are free to download. Boeing 737NG Normal Procedures sells 3 in-app purchases, starting at $39.99 per month. 737 Master Caution asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

737 Master Caution holds the better App Store score, 4.4 against 3.8. That said, the two scores are not equally well evidenced: Boeing 737NG Normal Procedures has 41 ratings behind it against 7, so its average is the more settled of the two.

UpkeepUpdate frequency

Boeing 737NG Normal Procedures ships an update every 14 months, 737 Master Caution every 3 months. Both last shipped on October 24, 2026.

Scorecard7 real differences · 3 level
Boeing 737NG Normal Procedures versus 737 Master Caution: the parameters behind the verdict, then further details
ParameterBoeing 737NG Normal Procedures737 Master Caution
PriceFreeFree
Rating3.8 (41 ratings)4.4 (7 ratings) — better
Positive reviews12.5% of reviews—
Number of ratings41 — better7
Update frequencyEvery 14 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS7.0 — better13.0
Further details — not scored
Size207 MB2 MB
Age rating4+4+
DeveloperAviation eLearningStudio BabDreams

Customer experience

Boeing 737NG Normal Procedures

All ratings40 ratings
Positive72.5%
Neutral0.0%
Negative27.5%
Written reviews16 reviews
Positive12.5%
Neutral0.0%
Negative87.5%

737 Master Caution

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

In-app purchases

3 purchases

Boeing 737NG Normal Procedures

Subscriptions3
  • Full access subscription$39.991 Month
  • Full access subscription$49.993 Months
  • Full access subscription$89.991 Year
None

737 Master Caution

No in-app purchases

Questions

Is Boeing 737NG Normal Procedures free?
Boeing 737NG Normal Procedures 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, Boeing 737NG Normal Procedures or 737 Master Caution?
737 Master Caution is rated higher. Boeing 737NG Normal Procedures averages 3.8 out of 5 from 41 ratings, while 737 Master Caution averages 4.4 from 7 ratings.
Do Boeing 737NG Normal Procedures or 737 Master Caution have ads?
Neither Boeing 737NG Normal Procedures nor 737 Master Caution shows ads.
Which is updated more often, Boeing 737NG Normal Procedures or 737 Master Caution?
Boeing 737NG Normal Procedures ships an update every 14 months, and 737 Master Caution every 3 months. Most recently, Boeing 737NG Normal Procedures was updated on October 24, 2026 and 737 Master Caution on October 24, 2026.

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