Onboard Performance Tool vs De Havilland Flight Deck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Onboard Performance Tool
This application enables flight crews and ground personnel to perform real-time performance calculations for flights. It provides fast and precise data for takeoff, landing, and weight and balance, accounting for various environmental and operational factors.
- Real-time performance calculations
- Takeoff analysis
- Landing analysis
- Weight and balance information
- Accounts for weather and runway conditions
- Corrects for pressure variation and MEL items
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*** This application requires configuration files, performance and other databases, available separately. Contact your Boeing representative for details. *** The Onboard Performance Tool (OPT) permits flight crews and ground personnel to perform real-time calculations based on current weather and runway conditions, while adhering to company and regulatory policies and procedures. The Onboard Performance Tool provides self-planning capability through fast and precise calculations. It allows flight crews to calculate the takeoff analysis, landing analysis, and weight and balance information. Instant and accurate calculations save time by correcting for pressure variation, runway conditions, engine bleeds and Minimum Equipment List (MEL) items.
De Havilland Flight Deck
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To enroll in using the Flight Deck app please contact: De Havilland Customer Service by email dehavillandcustomerservice@gilmore.ca or phone 1-800-795-6661. BRINGING PAPERLESS EFFICIENCY TO DE HAVILLAND PILOTS No more carrying pounds of aircraft manuals and documents on-board. No more waiting for Temporary Revision (TR) updates. With the De Havilland Flight Deck* application, De Havilland aircraft pilots can enjoy the benefits of going paperless¹ by being able to store and access manual data and other documentation instantly from their iPad® - without Wi-Fi. No other solution combines automatic TR updates, user control of content and aircraft serial number-specific information into one application. De Havilland Flight Deck* generates FAA, EASA and TC compliant audit trails for paperless¹ operations to prove your flight manuals are up-to-date. FAST AND EASY In addition to being able to access De Havilland flight manual subscriptions, you can control all of your electronic documentation in one place. Fleet managers, dispatchers and other members of your team can drag and drop electronic versions of aircraft documents, manuals and forms into online folders. Pilots simply enter a license code, then push a sync button on the iPad® and all updated documents (and subscribed documents) are automatically downloaded and cataloged. In less time than it takes to send a fax, pilots can sign documents, add text and email it to the fleet manager. AUTOMATIC REVISION UPDATES No more manually inserting revisions or Temporary Revisions (TRs) into De Havilland’s flight manuals. These are automatically inserted into the correct sections and distributed across every iPad® in the operator’s fleet by Technical Publications. Valuable time is saved and pilots are always ready to fly in accordance with the latest regulatory requirements. Powered by OBDS XR (r) technology, for reliability, security and speed. ¹ Paperless refers to the process identified in the relevant airworthiness requirement pertaining to paperless cockpits, including but not limited to FAA-AC-91-78,and AC-120-76D Use of the De Havilland Flight Deck* application does not relieve operator and its flight crew of their responsibility to comply with the applicable airworthiness authority approved documents.
Screenshots
Verdict
The clearest difference is device support: De Havilland Flight Deck at 3 against Onboard Performance Tool's 1. De Havilland Flight Deck also leads on iOS requirement (13.0 vs 17.6). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on July 1, 2026 and September 10, 2026 respectively.
| Parameter | Onboard Performance Tool | De Havilland Flight Deck |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (17 ratings) — better | — |
| Positive reviews | 13.5% of reviews | — |
| Number of ratings | 17 — better | — |
| Update frequency | Every 6 months | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | The Boeing Company | De Havilland Aircraft Company of Canada Limited |
In-app purchases
Onboard Performance Tool
No in-app purchases
De Havilland Flight Deck
No in-app purchases
Questions
Is Onboard Performance Tool free?
Is De Havilland Flight Deck free?
Do Onboard Performance Tool or De Havilland Flight Deck have ads?
Which is updated more often, Onboard Performance Tool or De Havilland Flight Deck?
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