Version: terms_v2
Effective date: 4 September 2026
Important aviation notice
EFB Logbook is designed for entertainment and flight-simulation use. It is not an approved electronic flight bag, avionics system, navigation product or operational flight-planning service. Do not use it to operate a real aircraft or as the sole source of aviation, navigation, weather, NOTAM, performance or safety information.
1. Who we are and these Terms
EFB Logbook is operated by Thomas Ledger trading as AeroLine Digital (“AeroLine Digital”, “we”, “us” or “our”).
Postal address: AeroLine Digital, 49 Station Road, Polegate, East
Sussex, BN26 6EA, United Kingdom
Email: privacy@aeroline.digital for
privacy matters; see https://efblogbook.app/support.html
for product support.
These Terms govern your use of the EFB Logbook mobile application, website and associated online services (together, the “Service”). They form a contract between you and us. Please read them before creating an account. If you do not agree, do not create an account or use the Service.
App-store terms and mandatory consumer laws also apply. Nothing in these Terms removes rights that cannot legally be excluded.
2. Eligibility
You must be at least 13 years old to use EFB Logbook. By creating or continuing an account, you confirm that you are at least 13 and legally able to agree to these Terms. If the law where you live requires parental or guardian involvement for a contract of this type, you must have that permission.
If you are under 18, ask a parent or guardian to review these Terms with you before making a paid purchase. Apple or Google account and family-payment rules may also apply.
The Service is offered to individual flight-simulation users. If you use it for or on behalf of an organisation, you confirm that you have authority to do so. It is not supplied as a certified professional or operational aviation system.
3. Accounts and security
You must provide accurate information where requested, use only accounts you are entitled to use, and take reasonable steps to protect your sign-in method. Tell us promptly if you believe somebody has accessed your account without permission.
You are responsible for activity carried out through your account unless it results from our failure to use reasonable care and skill. You may not transfer, sell or rent an account.
4. What the Service provides
The Service may let you create and manage simulated-flight logs, import SimBrief information, view maps and statistics, earn achievements, use local Scratchpad tools, share selected content and access paid PRO features. Features may differ by platform, version, region, entitlement or device.
We may improve, correct, add or remove features. We will not make a change that materially deprives you of a paid current entitlement without providing any remedy required by applicable consumer law.
5. Your content
You retain ownership of flight logs, notes and other content you submit. You give us a worldwide, non-exclusive, royalty-free licence to host, copy, process, transmit and display that content only as reasonably necessary to operate, secure, maintain and improve the Service and provide features you request. This licence ends when the content is deleted, except for transient backups, legal retention or content already shared outside our control.
You confirm that you have the right to submit your content and that it does not infringe another person’s rights or break the law. Do not enter real-world confidential operational information, passwords, unlawful material, or personal data about another person unless you have a lawful reason and their information is appropriate for the Service.
6. Public profiles and sharing
Profiles and flights are private by default. If you enable a public profile or mark content public, other users may view and copy the information shown. You can later disable public visibility, but we cannot retrieve copies another person has already made.
Public display names are subject to format, availability and moderation checks and may be permanently reserved against reuse. We may remove or restrict public material or names that are unlawful, misleading, abusive, infringing, unsafe or contrary to these Terms.
7. Acceptable use
You must not:
- use the Service unlawfully or to harm, threaten, harass, impersonate or deceive another person;
- upload unlawful, infringing, malicious or harmful material;
- attempt unauthorised access, probe security, evade limits or interfere with the Service;
- use automation to scrape, overload or extract data except through a feature we expressly provide;
- manipulate purchases, entitlements, rankings, totals or public features;
- introduce malware or misuse another person’s account or identifiers; or
- reverse engineer, decompile or circumvent technical protection except where the law expressly permits it and does not allow that right to be excluded.
8. Aviation and simulator information
Routes, coordinates, maps, airports, weather-related material, community content, imported OFPs and “NOTAM”-style announcements may be incomplete, delayed, simulated, user-generated or wrong. You must independently verify any information used outside entertainment simulation.
To the extent permitted by law, you accept responsibility for decisions to use the Service contrary to the aviation notice at the start of these Terms. We do not promise that the Service is accurate, current or suitable for real-world flight operations.
9. SimBrief and other third-party services
The Service depends on third parties including Firebase, Google Maps, Google and Apple sign-in, Apple App Store, Google Play, RevenueCat and SimBrief/Navigraph. Their availability and separate terms or privacy information may apply. When you request a SimBrief import, you authorise us to use the Pilot ID you provide to retrieve the available OFP.
We are not responsible for a third party’s independent service or content. We remain responsible for our own obligations and for choosing and using processors as required by law.
10. PRO subscriptions and purchases
Some features require a paid subscription or purchase identified as “PRO”. Price, billing period, trial, renewal terms and any taxes are displayed by the relevant app store before purchase.
Subscriptions are charged and normally renew through your Apple or Google account unless cancelled in accordance with the store’s displayed terms. Deleting the EFB Logbook account or uninstalling the app does not itself cancel an app-store subscription. Use the subscription controls in the relevant app store. If you delete EFB Logbook while a paid entitlement remains active, we may retain the minimum pseudonymous subscription record needed to administer that entitlement and complete processor deletion after it expires, as explained in the Privacy Policy.
Payment processing and most refunds are handled by Apple or Google. Nothing in this section limits any refund, repair, repeat-performance, price-reduction or other remedy available under mandatory consumer law.
11. Intellectual property and licence
We or our licensors own the Service, software, branding, design and supplied content. Subject to these Terms, we give you a limited, personal, non-exclusive, non-transferable, revocable licence to install and use the Service on supported devices for lawful flight-simulation purposes.
This licence does not transfer ownership and does not cover third-party content or software governed by a separate licence. You may not commercially resell or redistribute the Service without written permission.
12. Availability, updates and compatibility
We aim to provide a reliable Service using reasonable care and skill, but internet services sometimes experience maintenance, faults, provider outages and compatibility changes. We do not promise uninterrupted or error-free availability.
You are responsible for maintaining a supported device, internet connection and current app version. We may require updates for security, legal compliance or compatibility. Where practical, we will give reasonable notice of material planned disruption.
Keep any export or backup you reasonably require. Account deletion is irreversible.
13. Suspension and termination
You may stop using the Service and delete your account at any time. Deleting an account removes account data as explained in our Privacy Policy but does not cancel a store subscription.
We may restrict or suspend access where we reasonably believe this is necessary to investigate a serious breach, protect users or systems, comply with law, or prevent fraud or abuse. We may terminate an account for a material or repeated breach. Where appropriate and lawful, we will explain the reason and provide a reasonable opportunity to appeal or correct the issue.
Provisions that by their nature should continue—such as intellectual-property ownership, accrued payment obligations, lawful retention and liability provisions—survive termination.
14. Our responsibility to you
We do not exclude or limit responsibility where doing so would be unlawful. This includes liability for death or personal injury caused by our negligence, fraud or fraudulent misrepresentation, and your statutory rights under consumer law.
If we fail to comply with these Terms, we are responsible for loss or damage that is a foreseeable result of our breach or our failure to use reasonable care and skill. We are not responsible for loss that was not reasonably foreseeable when the contract began, or for loss caused by circumstances outside our reasonable control where we took reasonable steps to reduce the effect.
If you use the consumer Service for a commercial or business purpose contrary to its intended use, we are not responsible for business losses such as loss of profit, revenue, contracts, opportunity, goodwill or business interruption, except where the law does not allow that exclusion.
Nothing in these Terms makes you responsible for a fault caused by us or removes a remedy that mandatory law gives you.
15. Privacy
Our Privacy Policy at https://efblogbook.app/privacy.html explains how and why we process personal data, optional choices, retention, sharing and your rights. Privacy acknowledgement is not consent to optional Analytics or marketing.
16. Changes to these Terms
We may update these Terms to reflect changes to the Service, law, security requirements or our business. We will publish the new effective date and version. If a change materially affects your rights or obligations, we will provide prominent notice and require acceptance before continued account use where appropriate.
Changes do not retrospectively remove accrued rights or remedies. If you do not agree to materially updated Terms, you may stop using the Service and delete your account.
17. General terms
If we delay enforcing a right, that does not waive it. If a court finds part of these Terms unlawful or unenforceable, the remaining parts continue to apply, and the affected wording is treated as modified only to the minimum extent necessary.
You may not transfer this contract without our consent. We may transfer it as part of a genuine reorganisation or transfer of the Service provided this does not reduce your mandatory rights. No person other than you and us has a right to enforce these Terms, except that an app-store provider may enforce any rights expressly granted to it by its own applicable terms.
18. Governing law and disputes
These Terms are governed by the law of England and Wales. If you are a consumer living elsewhere in the United Kingdom or another country, you retain any mandatory protections provided by the law of your home country.
The courts of England and Wales have non-exclusive jurisdiction. As a consumer, you may also bring proceedings in the part of the United Kingdom or country where you live where applicable law permits.
Please contact Support first if something goes wrong so we can try to resolve it, but this does not restrict access to a court, regulator, app-store process or another remedy.
19. Contact
Thomas Ledger trading as AeroLine Digital
AeroLine Digital, 49 Station Road, Polegate, East Sussex, BN26 6EA,
United Kingdom
Privacy: privacy@aeroline.digital
Support: https://efblogbook.app/support.html