Terms of Service

1. Who we are and what these terms cover

Alpha Sierra Pilot ("we", "us", "the service") is an online study and drill tool for student and licensed pilots. It is operated from Hungary by the trader identified here:

Trading name

Alpha Sierra Pilot

Operator

— to be completed —

Legal form

egyéni vállalkozó (a sole trader registered in Hungary)

Registered seat / postal address

— to be completed —

Registration number (nyilvántartási szám)

— to be completed —

Tax number (adószám)

— to be completed —

EU VAT number (közösségi adószám)

— to be completed —

Country of establishment

Hungary

Contact

support@alphasierrapilot.com or the contact form — the same address for support, billing, privacy, copyright and complaints

These terms cover the whole service: the public site, free sample lessons and sample drills, the study library, the drill and exam modes, your progress data, and any paid plan you buy from us. Three further documents form part of this agreement and are worth reading in full: the Acceptable Use Policy, the Refund & Cancellation Policy and the Privacy Policy.

By creating an account, or by using the free parts of the service without one, you accept these terms. If you do not accept them, do not use the service.

2. Training aid only — the part that matters

In plain terms, and without limiting anything else in these terms:

• We are not flight instruction. Nothing here replaces a certificated or authorised flight instructor, a ground instructor, or an approved training organisation.
• We are not an approved course. Alpha Sierra Pilot is not an EASA-approved ATO or DTO course, is not an FAA-approved ground school, and completing anything here earns you no credit, endorsement or qualification towards any licence, rating or certificate.
• We are not the manual. Lessons and questions are our own explanations of what a manual says, cited back to the publisher, document, edition and revision we worked from. Manuals are revised. A revision, a service bulletin, an airworthiness directive or an approved flight manual supplement can change a limitation, a speed or a procedure at any time, and can do so after we published a lesson about it.
• Variants differ. A Cessna 172N and a 172S share a name and not much else where fuel systems, V-speeds and flap limits are concerned. Every aircraft in the app names the variant and manual revision it was built from; that label is there to be read, not skipped.
• You are responsible for the flight. Every operational decision — a limitation, a memory item, a checklist action, a weight and balance figure, a performance number, a go/no-go call — remains yours as pilot in command, taken from approved documents and your instructor, not from us.
• Nothing here is maintenance or airworthiness guidance. Do not use the app to decide anything about the airworthiness, servicing, loading or release to service of an aircraft.

We take content accuracy seriously — see section 11 and our Training Content & Safety Notice for how content is built, checked and corrected — but no study aid can carry the responsibility that sits with the pilot in command and with approved documentation.

3. Who may use Alpha Sierra Pilot

You must be at least 16 years old to create an account. If you are under 18, you should have your parent's or guardian's agreement to these terms before signing up, and you must not enter into any paid plan without it.

We do not knowingly collect data from anyone under 16. If you believe a child under 16 has an account, tell us at support@alphasierrapilot.com and we will delete it.

You must give us an email address you actually control, and you must confirm it. We use it for account and security messages, and it is the only way we can reach you.

4. Your account and sign-in

• An account belongs to one person. Accounts are personal. You may not share credentials, sell or transfer an account, or let anyone else study on yours. A flight school or club wanting access for several students should contact us rather than share one login.
• One device at a time. The service allows a single active session per account. Signing in somewhere new signs the previous device out. This is deliberate — it is how account sharing is kept honest — and it is not a fault.
• Sessions last up to 30 days of continued use before you have to sign in again. Sign out on devices that are not yours.
• Keep your password to yourself. You are responsible for what happens under your account. Tell us promptly at support@alphasierrapilot.com if you think someone else has access, and change your password.
• You may sign in with Google instead of a password. If you do, Google tells us your email address, name and profile picture; see the Privacy Policy.

5. Access: free use and paid plans

Free access is offered on the terms in this document and may be changed, limited or withdrawn — we will say so on the pricing page and, if you have an account, by email before free access to content you are actively using ends.

If and when we introduce paid plans, the following applies to them, and the price, billing period and covered aircraft shown on the pricing page and at checkout are the terms of that particular purchase:

• Access is per aircraft. A plan grants access to the aircraft it names, or to every active aircraft if it is a bundle. It does not grant access to aircraft added to the catalogue under a different plan.
• Subscriptions renew automatically at the end of each billing period, at the then-current price for that plan, until you cancel. You can cancel at any time, and cancelling stops the next renewal — see the Refund & Cancellation Policy.
• "Lifetime" means the operating life of the service, not yours and not ours: it is access without a recurring charge for as long as we keep Alpha Sierra Pilot running and keep that aircraft in the catalogue. It is not a promise that the service will exist forever. If we discontinue the service entirely we will give lifetime holders at least 90 days' notice and an export of their progress data.
• Content grows and changes. A plan buys access to the aircraft's library as it stands and as it develops, including corrections and new lessons. We do not promise any particular quantity of future content, and content can be corrected, revised, withdrawn or replaced — including where a manual revision or a discovered error requires it.
• We do not sell anything you can keep. No plan grants a downloadable, offline or permanent copy of the content.

6. Payment, taxes and price changes

• Payments are handled by Stripe. You enter your card details on Stripe's own checkout page. We never see or store your card number — we receive only the outcome, the last digits, and Stripe's customer and subscription identifiers. See the Privacy Policy.
• Prices are shown before you pay, in the currency displayed at checkout, and include or exclude VAT as stated there. Where VAT applies to your purchase it is charged according to the rules of the country you tell us you are in; giving us a false country is a breach of these terms.
• Failed payments. If a renewal payment fails, Stripe retries it over a short window. Your access continues during that window; if payment ultimately fails, access ends.
• Price changes apply from your next renewal, never mid-period, and we will email you at least 30 days before a renewal at a higher price. You can cancel before then and pay nothing further.
• Bank and card fees, currency conversion costs and any charges your bank applies are yours.

7. Cancellation and refunds

The full terms are in the Refund & Cancellation Policy, which forms part of this agreement. In summary: the service is free to use before you buy anything, so we do not give discretionary refunds — no refunds for unused time, for changing your mind after the statutory withdrawal period, or for not using what you bought. Cancelling stops the next renewal and leaves your access running to the end of the period you already paid for.

If you are a consumer in the EU, you have a statutory 14-day right of withdrawal on distance purchases. That right is given to you by law, we cannot take it away, and the policy explains exactly how it works here and how to use it.

8. How you may and may not use the service

The full rules are in the Acceptable Use Policy, which forms part of this agreement. The ones people trip over most:

• Do not share an account, and do not resell or sub-licence access.
• Do not scrape, bulk-download, crawl or systematically extract questions, answers, lessons or diagrams, by hand or by script.
• Do not use our content to train, fine-tune or evaluate a machine-learning model.
• Do not work around access controls, rate limits or the single-session rule.
• Do not republish our content — including in a study group, a shared drive, a forum post, a Discord, an Anki deck or another app.

We apply per-account rate limits to keep the service usable and to make bulk extraction impractical. Hitting a limit is temporary; repeatedly engineering around one is a breach.

9. Our content, and the licence you get

The lessons, questions, explanations, diagrams, audio, layout, code, branding and the structure and selection of the whole library are ours or our licensors', and are protected by copyright and other rights. How that content is made — and the care taken over the manuals it is referenced to — is set out in Copyright & Content Sources.

While your account is in good standing, we grant you a personal, non-exclusive, non-transferable, non-sublicensable and revocable licence to access and use the content you are entitled to, for your own flight training and personal study. That is the whole of the licence. You get no other rights, express or implied.

You may take your own notes and print or screenshot a page for your own study. You may not copy, distribute, publish, broadcast, adapt, sell or make our content available to anyone else, in any medium.

Aircraft, manufacturer and manual names, and any third-party trade marks, belong to their owners and are used only to identify the aircraft a lesson is about. We are not affiliated with, endorsed by, sponsored by or approved by any aircraft manufacturer, publisher, operator, flight school or aviation authority.

10. What you write in the app

Your notes on questions, your bookmarks, your content reports, your flags and the messages you send us are yours. You keep every right you have in them.

You give us the limited permission we need to run the service with them: to store them, show them back to you, and — for reports and flags — read them so we can check and correct the content they point at. A correction we make after your report becomes part of our content; it does not make the corrected lesson yours, and it does not make it any less our responsibility.

Do not put anything unlawful, abusive, confidential to someone else, or personal about a third party into a note, a report or a message. Do not paste text copied out of a manual you do not have the right to share.

11. Accuracy, sources and reporting an error

Every lesson and question is built from a named manual and carries the reference it came from. Content is reviewed before it is published, and we audit whole aircraft against the source before opening them up. We correct errors as a priority and we do not quietly overwrite them: a corrected item is corrected for everyone.

Even so, we do not warrant that the content is complete, current or free of error, and section 2 applies without exception. Manuals are revised on their own schedule; there will be periods where a manual has moved and we have not caught up.

If you think something is wrong, report it. Use the report control on the lesson or question, or write to support@alphasierrapilot.com with the aircraft, the item and what you believe the manual says. Reports about safety-relevant content go to the front of the queue. Reporting an error is not a condition of anything and costs you nothing — it is the single most useful thing a user can do for everyone else studying the same aircraft.

12. Availability and changes to the service

• We aim to keep the service available but we do not promise a particular uptime. Maintenance, third-party outages and faults happen.
• We may add, change, or remove features. If we remove something significant from a plan you are paying for, you may cancel and, where the law gives you the right to a proportionate refund of what you have already paid for undelivered service, you will get it.
• Some features are released behind flags and to some users before others. Anything labelled beta, preview or experimental is provided as-is and may change or disappear.
• We may set fair-use limits on requests, sessions or storage, and we will not use them as a way to withhold what a paid plan has promised.

13. Suspension, termination and deleting your account

You can stop at any time. Cancelling a paid plan is done from your billing settings; deleting your account entirely is done from Settings → Delete account and is immediate and irreversible. What happens to your data on deletion is described in the Privacy Policy.

We may suspend or terminate an account where there is a serious or repeated breach of these terms or of the Acceptable Use Policy — in particular account sharing, bulk extraction of content, or an attempt to defeat access controls — or where we must do so by law. Except where the breach is serious enough to require immediate action, we will warn you first and give you a chance to put it right.

If we terminate an account for breach, no refund is due. If we terminate for any other reason, or we discontinue the service, we refund the unused part of anything you have paid in advance.

Sections that by their nature should survive the end of this agreement do survive it: sections 2, 9, 10, 14, 15, 17 and 18.

14. Disclaimers

To the fullest extent the law allows, the service and its content are provided "as is" and "as available", and we exclude all implied warranties, including fitness for a particular purpose, merchantable quality, accuracy and non-infringement. We do not warrant that the service will be uninterrupted or error-free, that defects will be corrected, or that the content is accurate, complete or current.

We do not guarantee results. Using Alpha Sierra Pilot does not guarantee that you will pass any examination, oral, skill test, checkride or proficiency check, or that you will meet any operator or authority requirement.

15. Limitation of liability

Nothing in these terms limits or excludes our liability for death or personal injury caused by our negligence, for damage caused intentionally or by gross negligence, for fraud, or for anything else that cannot lawfully be limited. Hungarian law voids any attempt to do so and we are not attempting it.

Subject to that, and to the fullest extent the law allows:

• We are not liable for any aviation decision, action or omission — yours or anyone else's — taken in reliance on the content. Section 2 is the basis on which the service is offered at all.
• We are not liable for indirect or consequential loss, or for loss of profit, revenue, opportunity, licence, employment, training time, flight hours, examination fees or data, however caused.
• Our total liability arising out of or in connection with the service in any 12-month period is limited to the greater of the amount you paid us in that period and EUR 100.

If you use Alpha Sierra Pilot other than as a consumer — for example as a flight school, an operator or a training organisation — you additionally agree to indemnify us against claims brought against us by your students, employees or customers arising from your use of the service. This paragraph does not apply to consumers.

16. Changes to these terms

We may update these terms — for example when we add a feature, change how billing works, or when the law changes. The version and effective date at the top of this page always identify the current text.

For material changes we will give you at least 30 days' notice by email to the address on your account, and the change takes effect at the end of that notice. If you do not accept a change, you may cancel and, where you have paid in advance for a period that extends beyond the change, we refund the unused part. Continuing to use the service after the notice period means you accept the new terms.

Corrections that do not change your rights or obligations — a typo, a broken link, a clearer sentence — take effect when published.

17. Governing law, your consumer rights and disputes

These terms and any dispute arising from them are governed by Hungarian law, and the Hungarian courts have jurisdiction.

If you are a consumer, this choice of law does not deprive you of the protection of the mandatory consumer-law rules of the country you live in, and you may bring proceedings in the courts of that country. Nothing here requires you to arbitrate, waive a class action, or give up any remedy the law gives you.

Talk to us first. Almost everything is quicker to fix by email: support@alphasierrapilot.com or the contact form. We aim to acknowledge a complaint within 5 working days and to answer it substantively within 30 days.

If we cannot resolve it between us, a consumer may take the matter to one of these:

Consumer protection

The government office (kormányhivatal) competent for our registered seat. Budapest Főváros Kormányhivatala, Fogyasztóvédelmi Főosztály — 1117 Budapest, Prielle Kornélia utca 4/b.; fogyasztovedelem@bfkh.gov.hu; +36 1 450 2598. The national directory of offices is at fogyasztovedelem.kormany.hu.

Conciliation board (békéltető testület)

The board competent for our registered seat — details to be completed. Boards settle consumer disputes out of court, free of charge; the national list is published at bekeltetes.hu.

If you live in another EU country

Your national consumer ADR body, which the European Consumer Centre network can put you in touch with. The European Commission's Online Dispute Resolution platform closed on 20 July 2025 and is no longer a route; the Commission's consumer redress pages list what replaced it.

Data protection

Complaints about your personal data go to a supervisory authority instead — see section 9 of the Privacy Policy.

18. General

• Whole agreement. These terms, together with the Acceptable Use, Refund and Privacy policies and anything shown to you at checkout, are the whole agreement between us about the service.
• Severability. If a court finds any part unenforceable, the rest stands and the offending part is read down to what is enforceable.
• No waiver. Not enforcing something once does not mean giving it up.
• Assignment. You may not transfer your rights under these terms. We may transfer ours to a successor of the business, and if we do we will tell you and it will not reduce your rights.
• Force majeure. Neither of us is liable for a failure caused by something genuinely outside our control.
• Language. These terms are written in English. A translation is provided for convenience only; the English text governs.
• Notices. We reach you at the email on your account — keep it current. You reach us at the email and postal address in section 1.
• Code of conduct. We are not signed up to any industry code of conduct.
• Filed terms. Contracts concluded here are not filed as separate written documents. The applicable terms are the versions published on this site, each carrying its version number and effective date; we keep the earlier versions.