Comparison

B737 MRG vs VRflow B737MAX

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

Head to head
About

B737 MRG

This professional reference app provides airline pilots with detailed guidance and practical advice for handling over 300 non-normal situations on the Boeing 737. It includes extensive system notes, illustrations, logic gates, and schematics to aid in-flight and ground operations.

Highlights
  • 300+ non-normal procedures
  • System notes and practical advice
  • Over 2,200 illustrations
  • Logic gates and schematics
  • Covers CL, NG, MAX editions
  • Regular content updates
Read full description

The B737MRG is the most trusted professional reference for airline pilots flying the Boeing 737. The B737MRG covers 300 different non-normals, that is a hundred more than the official QRH. The app provides system notes and practical advice on how to deal with each non-normal, both on ground and in flight. The app comes with over 2,200 illustrations, logic gates, lights and schematics! Captain Pat BOONE, author of the B737 MRG, is a senior instructor with more than 20,000 flight hours on Boeing aircraft (Boeing 737, Boeing 767 and Boeing 787 Dreamliner). You can free download the app and review a couple of demo pages. You need a paid subscription to access the entire content. With a subscription you get access to all editions of the B737MRG (CL, NG, MAX) in all languages (English, Chinese). Your subscription includes all updates of the content that are published by the author on a regular basis. Subscription details: Your subscription runs for a period of 1 year, starting the date of in-app purchase. There is no free trial period. The price for the subscription is around a dollar / euro per month. The exact price depends on local taxes and is displayed inside the app. A single subscription can be used on multiple devices (phone, tablet), as long as these devices run the same app store account. Cancellation and refund of your current subscription are not possible. Your subscription runs until the end of the current period. Your subscription is automatically renewed, unless Auto-Renew is turned off at least 24 hours before the end of the current period. Your app store account will be charged for renewal within 24 hours prior to the end of the current period. You can turn-off auto-renewal by going to your app store account settings, anytime after your initial purchase. Terms and Conditions & Privacy Policy : Visit : https://b737mrg.net/disclaimer/

About

VRflow B737MAX

An interactive cockpit procedure trainer for the B737 MAX, designed to accelerate learning for type ratings, sim checks, and MCC courses. It offers realistic system behavior and multi-crew training scenarios.

Highlights
  • Normal procedures training
  • Memory items practice
  • Cockpit exploration mode
  • Flow visualizations
  • Multi-crew training (PF/PM roles)
  • Dynamic checklists
  • Realistic aircraft systems
Read full description

Boost your learning rate with VRflow B737MAX, an advanced, interactive cockpit procedure trainer for the B737 MAX. Get ready for your type rating, sim check, MCC course or your next flight with this strong learning tool, build specifically for efficient cockpit procedure training. FULL VERSION FEATURES (requires subscription): • Normal procedures, including CDU preflight • Memory items • Cockpit familiarization/Explore Mode • Callouts • Flow visualizations • Train as Captain or First Officer and as PF or PM • Dynamic checklists • Step-by-step procedure explanations • Dynamic aircraft systems and screens • Automatic crew member to train with • Training Mode/Exam Mode DEMO VERSION FEATURES (free) • One normal procedure included • Automatic crew member • Explore Mode not available VRflow is a well-proven procedure training platform used by airlines, ATOs and air forces worldwide. Enjoy the benefits of the most efficient procedure training platform, originally build for virtual reality and now available on iOS. Advanced visual learning technologies are incorporated to accelerate learning rate and improve knowledge retention. VRflow enables multi-crew training with the automatic crew member, who will assume the opposite rank and role. If you train as F/O, you will get an automatic captain to train with. You can swap roles between Pilot Flying (PF) and Pilot Monitoring (PM). You will learn and understand the structure and task sharing of procedures, the correct callouts and flows. Explore Mode enables you to explore and understand the switches, knobs, levers, panels and screens of the cockpit interactively. All aircraft systems behave realistically, so you will become familiar with how the aircraft behaves in real life. The aircraft even maneuvers automatically, providing you with the correct visual cues and context of a flight. The entire flight deck is modeled accurately in 3D, including screens and the outside world. VRflow has been tested by real life pilots, type rated on the B737MAX. NOTE: VRflow is a procedure trainer - NOT a flight simulator. Read the end user license agreement (EULA) here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

B737 MRG4 screens
VRflow B737MAX4 screens

Verdict

The call

The clearest difference is monetization model: VRflow B737MAX at freemium against B737 MRG's subscription. VRflow B737MAX also leads on review sentiment (100% vs 81%). B737 MRG's advantage is ratings volume (292 vs 3) and update cadence (monthly vs every 4 months). On price, 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

Both are free to download. B737 MRG sells 1 in-app purchase, starting at $9.99 per year and VRflow B737MAX sells 1 in-app purchase, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

B737 MRG holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: B737 MRG has 292 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 81% of B737 MRG's written reviews are positive against 100% of VRflow B737MAX's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

B737 MRG ships an update monthly, VRflow B737MAX every 4 months. The most recent releases landed on September 26, 2026 and September 11, 2026 respectively.

Scorecard5 real differences · 5 level
B737 MRG versus VRflow B737MAX: the parameters behind the verdict, then further details
ParameterB737 MRGVRflow B737MAX
PriceFreeFree
Rating4.9 (292 ratings) — better4.7 (3 ratings)
Positive reviews81.3% of reviews100.0% of reviews — better
Number of ratings292 — better3
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFreemium — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size94 MB914 MB
Age rating4+4+
DeveloperMCC (BV)VRpilot

Customer experience

B737 MRG

All ratings292 ratings
Positive97.9%
Neutral0.3%
Negative1.7%
Written reviews182 reviews
Positive81.3%
Neutral1.1%
Negative17.6%

VRflow B737MAX

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

B737 MRG

Reported bugs

3 issues
  • App crashing on startup after updates
  • Losing downloaded data on app restart
  • Difficulty exiting demo mode

Requested features

2 requests
  • Interactive features like switchable diagrams
  • Availability on macOS/desktop platforms

VRflow B737MAX

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

B737 MRG

Subscriptions1
  • Yearly Subscription$9.991 Year
1 purchases

VRflow B737MAX

Subscriptions1
  • B737MAX monthly subscription$19.991 Month

Questions

Is B737 MRG free?
B737 MRG is free to download, with in-app purchases available.
Is VRflow B737MAX free?
VRflow B737MAX is free to download, with in-app purchases available.
Which has better reviews, B737 MRG or VRflow B737MAX?
B737 MRG is rated higher. B737 MRG averages 4.9 out of 5 from 292 ratings, while VRflow B737MAX averages 4.7 from 3 ratings.
Do B737 MRG or VRflow B737MAX have ads?
Neither B737 MRG nor VRflow B737MAX shows ads.
Which is updated more often, B737 MRG or VRflow B737MAX?
B737 MRG ships an update monthly, and VRflow B737MAX every 4 months. Most recently, B737 MRG was updated on September 26, 2026 and VRflow B737MAX on September 11, 2026.

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