737 Handbook vs B737 CDU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
737 Handbook
An interactive technical guide for pilots, offering quick reference for sim or interview preparation. Features interactive schematics, photos, videos, and a flight deck mock-up. Content is organized for flexible learning, from essential information to in-depth system exploration.
- Interactive schematics
- Videos of malfunctions and systems
- FMC simulator with CPDLC/ACARS
- 737 Flight Deck Mock-up
- Photo galleries
- Offline content access
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The 737 Handbook is an interactive technical guide for pilots which provides a quick reference for sim or interview preparation from initial type rating to command upgrade. The app features interactive schematics, photos and videos with unique content. The information is sorted in different levels from most essential information on the page to in-depth information in pop-up windows. This enables you to choose the way you want to learn. Should you require quick reference you can go through the main text in the chapter. Should you, however, wish to explore the systems more in-depth you can do so by opening different pop-up windows, text and playing around with fully interactive schematics. Try it out yourself! Main features: * 226 pages divided into 18 chapters * Over 20 videos of different engine malfunctions and various systems operation * FMC simulator with CPDLC and ACARS * Fully Interactive schematics including Electrical, Fuel, Air Systems and many more * 737 Flight Deck Mock-up * Photo galleries * News section with technical blog posts * All of the content is available offline when online the app checks for content updates Note: The 737 Handbook comes with one chapter and one interactive schematic for free. The rest of the content is available as one time in-app purchase. ——————————————————————————— Terms & Conditions In-App Purchases * The 737 Handbook application offers an “in-app” purchase option which will unlock features listed on the “Unlock Premium Access” 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: * (i) for career pass (lifetime subscription) at the time you place your order * (ii) for type rating pass (6 monthly subscription), 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 Apple ID as the initial purchase. The 737 Publishing s.r.o. cannot manage App Store subscriptions. * By purchasing the “premium access” you accept these terms & conditions Full Terms and Conditions: https://737-handbook.s3.us-east-1.amazonaws.com/Terms+and+Conditions.pdf Privacy Policy: https://737-handbook.s3.us-east-1.amazonaws.com/Privacy+Policy.pdf
B737 CDU
This app simulates a Boeing 737 CDU, allowing users to explore its pages and enter data. It's designed for pilots preparing for flights or seeking a refresher on CDU operations. The tool offers touch screen navigation and access to FMC and ACARS pages.
- Simulates 737 CDU interface
- Explore FMC and ACARS pages
- Touch screen navigation
- Data entry for CDU
- Useful for pilot training
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B737 CDU allows you to get familiar with 737 cdu and lets you explore contents of each page (A great tool for your chair flying!) It was primarily developed to help pilots preparing for operating experience flights (anyone wanting to expedite CDU set up process). However, B737 CDU can be a useful tool as a reminder for every 737 pilot out there (ex.Either you are coming back from a long vacation or simply curious what to expect to see on each page) Following features will be available: -Access to FMC and ACARS pages -Touch screen capability which allows you to move from one page to the other -Type and enter the data into CDU (no logic, just number and letters) Refer to introduction videos and screenshots to find out more about what this app can do! Disclaimer: * Buttons and inputs usually used for actual flights DO work, but some of FMC and ACARS page buttons won't work until next update. * Data being entered into CDU doesn't have any logic to it, meaning this app is simply a replica; doesn't work like actual CDU. Any inquries or comments regarding the app, please contact us at goappcs@gmail.com. Thanks for downloading. Preview video: https://www.youtube.com/watch?v=WC70v6FrlDY https://www.youtube.com/watch?v=_VB5BuvlmVQ
Screenshots
Verdict
The clearest difference is price: 737 Handbook at Free against B737 CDU's $7.99. 737 Handbook also leads on review sentiment (87% vs 43%) and rating (4.9 vs 2.0). B737 CDU's advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 16.4). On ads 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
737 Handbook is free to download; B737 CDU costs $7.99 up front. 737 Handbook sells 2 in-app purchases, starting at $16.99 per 6 months. B737 CDU asks for nothing beyond the download.
737 Handbook holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: 737 Handbook has 248 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 87% of 737 Handbook's written reviews are positive against 43% of B737 CDU's.
737 Handbook ships an update every 3 weeks, B737 CDU every 2 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.
| Parameter | 737 Handbook | B737 CDU |
|---|---|---|
| Price | Free — better | $7.99 |
| Rating | 4.9 (248 ratings) — better | 2.0 (2 ratings) |
| Positive reviews | 87.4% of reviews — better | 42.9% of reviews |
| Number of ratings | 248 — better | 2 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 16.4 | 8.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | 737 PUBLISHING S.R.O. | Kun-Woo Go |
Customer experience
737 Handbook
B737 CDU
Bugs and requests
737 Handbook
Reported bugs
7 issues- App doesn't work offline
- Stuck at loading percentages (e.g., 56%, 57%)
- Premium content not available after purchase
- App fails to start after updates
- App not working on iOS 12.5.5
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- App crashes often
- Interactive components are very sensitive to touch
Requested features
6 requests- Make app available offline
- Improve interactive component intuitiveness
- Develop app for other aircraft models (e.g., 777)
- Add feature to highlight words and make in-app notes
- Consider sales/discounts on the app
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- Develop an app for maintenance engineers
B737 CDU
Not enough reviews yet to summarise bugs or requests.
In-app purchases
737 Handbook
- Type Rating Pass (6-monthly)$16.996 Months
- Career Pass (Lifetime)$54.99
B737 CDU
No in-app purchases
Questions
Is 737 Handbook free?
Is B737 CDU free?
Which has better reviews, 737 Handbook or B737 CDU?
Do 737 Handbook or B737 CDU have ads?
Which is updated more often, 737 Handbook or B737 CDU?
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