Comparison

A220 Guide 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

A220 Guide

This app provides pilots with essential operational information for the A220 aircraft. It features 14 in-depth chapters, EICAS message alerts, and a powerful search function. Enhance your understanding with detailed schematics, photos, and illustrations.

Highlights
  • 14 in-depth operational chapters
  • EICAS message alerts
  • Effortless search functionality
  • Detailed schematics and illustrations
  • High-quality photographs
  • Premium access unlockable via in-app purchase
Features
Read full description

The A220 Guide app is a resource for pilots of the A220 aircraft, providing essential information on how to operate it. Gain a comprehensive understanding of flying the A220 with 14 in-depth chapters covering every facet of this aircraft. Whether you're a seasoned aviator or aspiring pilot, these insights will enhance your expertise. Stay Informed with All EICAS Messages Our app provides you with EICAS messages, keeping you informed about critical alerts and warnings. You can stay ahead of the curve during your flights and ensure a smooth and secure journey in the skies by making well-informed decisions. Effortless Search Functionality Our powerful search feature allows you to find the exact information you need, when you need it. Streamline your pre-flight preparations and in-flight decision-making by accessing any topic, procedure, or checklist with a few taps. Enhance Understanding with Schemas, Photos, and Pictures A220 Guide is a comprehensive guide to the Airbus A220 aircraft. It includes detailed schematics, high-quality photographs and informative illustrations that allow you to explore every aspect of this advanced aircraft. You'll never learn about aircraft in such an engaging way! Don't Miss the Flight: Get The Premium A220 Guide Unlock full app potential with our Premium offer. Get more as an A220 pilot with full resource access. ------------------------------------- Mobile “IN-APP” Purchases The A220 Guide application offers an “in-app” purchase option which will unlock features listed with a lock in the “Chapters page” The “in-app” purchase is valid only on the ecosystem where the “in-app” purchase was made (no cross-platform support) The “in-app” purchase will unlock premium access on all devices within the ecosystem, provided that the devices are signed in under the same ID All amounts are payable and charged: All Access Starter (6 Months), at the beginning of the subscription and, because each such subscription renews automatically for an additional period equal in length to the expiring subscription term until you cancel it, at the time of each renewal until you cancel. You must cancel your subscription before it renews to avoid the billing of the fees for the next subscription period Your subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current subscription period. Automatic renewals will cost the same price you were originally charged for the subscription. You can manage your subscriptions and turn off auto-renewal by going to your Account Settings on the App Store after purchase. You can cancel the renewal of your subscription with the App Store You will not receive a refund for the fees you already paid for your current subscription period, and you will continue to use premium access until the end of your current subscription period App Store subscriptions can be managed from a mobile device or computer that is signed in using the same ID as the initial purchase. Onboard by JCG. cannot manage App Store subscriptions. By purchasing the “premium access” you accept these terms & conditions Privacy Policy : https://www.a220guide.com/privacy-policy Terms and conditions : https://www.a220guide.com/terms-and-conditions

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

A220 Guide4 screens
737 Master Caution4 screens

Verdict

The call

The clearest difference is rating: 737 Master Caution at 4.4 against A220 Guide's 2.0. 737 Master Caution also leads on in-app purchases (none vs 1) and ads (none vs shown). A220 Guide's advantage is update cadence (every 2 weeks vs every 3 months). On price 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

Both are free to download. A220 Guide sells 1 in-app purchase, starting at $12.99 per 6 months. 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 2.0. That said, the two scores are not equally well evidenced: 737 Master Caution has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

A220 Guide ships an update every 2 weeks, 737 Master Caution every 3 months. Both last shipped on October 24, 2026.

Scorecard7 real differences · 2 level
A220 Guide versus 737 Master Caution: the parameters behind the verdict, then further details
ParameterA220 Guide737 Master Caution
PriceFreeFree
Rating2.0 (1 ratings)4.4 (7 ratings) — better
Number of ratings17 — better
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size50 MB2 MB
Age rating4+4+
DeveloperOnboard By JCG LtdStudio BabDreams

Customer experience

A220 Guide

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

737 Master Caution

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

In-app purchases

1 purchases

A220 Guide

Subscriptions1
  • All Access Starter (6 Months)$12.996 Months
None

737 Master Caution

No in-app purchases

Questions

Is A220 Guide free?
A220 Guide 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, A220 Guide or 737 Master Caution?
737 Master Caution is rated higher. A220 Guide averages 2.0 out of 5 from 1 ratings, while 737 Master Caution averages 4.4 from 7 ratings.
Do A220 Guide or 737 Master Caution have ads?
A220 Guide shows ads; 737 Master Caution does not.
Which is updated more often, A220 Guide or 737 Master Caution?
A220 Guide ships an update every 2 weeks, and 737 Master Caution every 3 months. Most recently, A220 Guide was updated on October 24, 2026 and 737 Master Caution on October 24, 2026.

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