B737 Cockpit Companion

End-User License Agreement (EULA)

December 13, 2018



For informational and educational purposes only. Your regulator-approved airplane flight manual and regulator-approved company manuals are the sole and authoritative sources for information on your airplane’s systems and the safe operation of your airplane.

The content displayed with this application is for informational/educational/training purposes only and may be outdated, wrong, or show information that is not part of your particular aircraft or airline’s documentation.

Every attempt is made to ensure the correctness of the information presented. However, use at your own risk. Always cross-check any information you might find here with an authoritative reference, such as your regulator-approved airplane flight manual.

This product is not intended for flight operations.

You therefore assume full responsibility for the consequences of all usage and conclusions made by you, including any damage to people or property. You acknowledge that the Application and content providers will not be liable for use. You release the Application and content providers from liability for any such damages, and you are prepared to bear the risk of such potential damages by yourself.

There, we’ve made that point like five times. We mean it. Use common sense.

This product is not approved or endorsed by the Boeing company or by other manufacturers or operators. It is a creative work, a synthesis of a lot of knowledge, discussions with other pilots, and various information sources.

No warranty is expressed or implied. However, limitations or exclusions of warranties may not be binding in your jurisdiction.

The application provider is Flight Simulation Systems, LLC dba fss.aero. The content provider is Bill Bulfer.


We understand the sensitivity of our audience to privacy, and have three major goals:

1. The application does no behavioral or usage tracking whatsoever. This does not mean we won’t implement that capability in the future: there are many great reasons to do so, including understanding what features customers use, so we can focus our development efforts more effectively. But we will always clearly notify our customers of the existence of such features and make them opt-in features. I.e., the standard state is OFF, and you must voluntarily ACTIVATE them in order for them operate.

2. We will take industry-standard means to safeguard any information you provide to us, including registration information and email addresses. Note, however, that there are many bad actors out there: state enterprises constantly attack servers, looking for vulnerabilities. Individuals are targeted in attempts to compromise their systems to elicit passwords and greater access. There is a criminal assault on privacy using technology unprecedented in history. So we cannot GUARANTEE absolute privacy (an old saying: if you want to keep something confidential on a computer, lock it in a vault, unplugged), and will be held blameless if our reasonable means to safeguard information are compromised.

3. We will not sell your data to third parties. That simply is not our business model, and, in any case, we find such practices odious. If our product or company is ever purchased, down the line, we will argue for similar protections.

Note that individual states or countries are developing legislation around privacy, which may supplement or overrule the guidelines above.

Note that we abide by Apple’s privacy guidelines: we will not solicit personal information, including account, transaction, billing, or credit card information, as a precondition for providing services. The App Store works much like a grocery: if you buy a can of soup, the soup manufacturer knows nothing about you. That does not mean you can’t voluntarily provide information about yourself, but we they won’t demand information for you to use their soup. Same with us.


The Quizzer subscription provides access to a feature which tests the user on material covered in the rest of the app.

Quizzer is updated at least quarterly, and often much more frequently. It requires an active, reliable Internet connection to do so.

Touch the Purchase button to activate your subscription for Quizzer. The user license fee is $24.95/year.

Payment will be charged to your iTunes Account at confirmation of purchase. You may manage your subscriptions in system Settings (iTunes & App Store, touch your user ID, then look for Subscriptions) or via the iTunes Store. See https://support.apple.com/en-us/HT202039 for more information.

Cancellation and refund of your current subscription are not possible. Your subscription runs until the end of the active subscription period. Your subscription is automatically renewed by iTunes in a year, unless Auto-Renew is turned off at least 24 hours before the end of the current period. Your iTunes 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 iTunes settings in system Settings.

You can terminate your subscription at any time. Log in to your iTunes account to cancel the subscription. Note, however, that refunds are not possible: cancellation merely ensures that the subscription is not renewed.

Press the Restore button to restore any previous purchases. You would normally do this if you’re running the app on a new device, or need to reinstall the app.