Terms of service

1. Agreement and eligibility

These Terms are an agreement between you and Avioverse Ltd, the operator of Avioverse (Avioverse, we, us). They apply to our websites, applications, browser extension, integrations and related services (the Service). By creating an account or using the Service, you agree to these Terms and our Privacy Policy.

You must be at least 18 and legally able to enter into this agreement. If you use the Service for work, you confirm that you are permitted to do so. Your employer or client does not become a party to these Terms merely because it reimburses your subscription.

2. What Avioverse provides

Avioverse is a personal aviation workbench offering reference material, productivity and record-organisation tools, deterministic calculators, and AI-assisted research, drafting and document processing. Features, usage allowances and supported sources vary by plan and are described on the pricing and product pages shown before purchase.

The Service is a working aid. It is not an approved exposition, maintenance programme, continuing-airworthiness record system, safety-management system, legal service, competent authority, certification body or substitute for professional judgement.

3. Aviation safety and official sources

Aviation decisions can affect safety and legal compliance. You are responsible for checking the current official source, approved data, aircraft or organisation records, applicable procedures and the competent authority before acting. A citation, summary, reminder, calculation or draft in Avioverse does not establish compliance, applicability, airworthiness or release to service.

Do not use the Service as the sole source for an operational, maintenance, licensing, regulatory or safety-critical decision. If Avioverse conflicts with an official source or approved procedure, the official source or approved procedure controls.

4. AI features

Avioverse includes features powered by artificial intelligence, including the assistant, document extraction, drafting aids and library summaries. AI output can contain errors or omissions. It is provided for information only, is not a substitute for the approved exposition, official documentation or the competent authority, and you are responsible for verifying it before relying on it.

Content you create or edit with AI assistance is yours, and you are responsible for your use and publication of it. If you publish AI-generated text or media without substantive human review, applicable law—including Article 50(4) of Regulation (EU) 2024/1689—may require you to disclose that it was generated by AI. You must not present unreviewed AI output as verified human work. Avioverse does not use your content to train AI models. Details are in our AI transparency statement.

5. Your account

Give accurate registration information, keep your sign-in method secure and tell us promptly if you suspect unauthorised access. You are responsible for activity under your account unless it results from our failure to use reasonable security. Accounts are personal and may not be sold, shared as a common login or transferred without our written agreement.

6. Your content

You retain ownership of content you submit and of your rights in AI-assisted work you create. You give us a limited, non-exclusive licence to host, copy, transmit, index, transform and display that content only as needed to operate, secure and support the Service and the features you request. This licence ends when the content is deleted, except for content that stays with a continuing Team (section 7) and the copy in our single daily backup, which is replaced by the next backup within about 24 hours (48 hours if a backup run fails).

To the extent we hold any rights in output generated specifically for you, we assign those rights to you. AI output may not be unique—another user can receive similar output—and the law may not recognise intellectual-property rights in every AI-generated result.

You confirm that you have the necessary rights, permissions and lawful basis to upload and process the content. Do not upload export-controlled, classified, unlawfully obtained or specially protected material unless your organisation authorises the use and Avioverse is suitable for that data. Avoid unnecessary personal data, especially health, disciplinary, occurrence-reporting and other sensitive aviation information.

7. Teams, guests and sharing

A workspace owner or manager may invite other people, assign roles and share records or protected links. The person controlling a workspace is responsible for access decisions, participant authority and removing access when it is no longer needed. Recipients must keep protected links and passphrases confidential. Leaving a workspace does not automatically delete records that belong to that workspace or are needed by its remaining participants.

If you delete your account, ownership of each Team you own passes to a remaining active member when the account is erased, and the records you contributed stay with the Team, attributed to you by name. A Team with no other eligible member is erased with your account. Section 14 describes the deletion process.

8. Acceptable use

You must not use the Service to:

• break the law, infringe rights or breach a duty of confidence;
• misrepresent AI output as an official record, approval, release, certificate or human-reviewed conclusion;
• create deceptive evidence, fraudulent records, impersonation or harmful synthetic content;
• upload malware, probe vulnerabilities, bypass access controls or interfere with the Service;
• access another person's account, workspace or data without permission;
• scrape, resell or systematically extract the Service or licensed content except where law permits;
• circumvent usage limits, approval gates or safety controls; or
• use the Service to develop or train a competing model or dataset from protected Avioverse content.

Good-faith security research should be reported to security@avioverse.io and must avoid privacy violations, service disruption and access to data beyond what is necessary to demonstrate a flaw.

9. Plans, usage and payment

Current prices, taxes, billing intervals and included allowances are shown before checkout. Paid subscriptions renew automatically for the interval selected until cancelled. Stripe processes payment. You authorise the recurring charge shown at checkout and must keep your billing information current.

You can change the size of your plan or its billing interval in Settings → Billing. A change that raises what you pay — a larger size, or moving from monthly to yearly billing at the same or a larger size — starts straight away, and you pay the difference for the rest of the current period (when you move to yearly billing a new year starts that day and the unused part of the current month is credited). A change that lowers what you pay — a smaller size, or moving from yearly to monthly billing — starts when the period you have already paid for ends, and you can undo it until then.

Price changes. We change the price of a running subscription only if you agree. We will email you at least 30 days before the billing date from which a new price would apply, with the old and new price and that date, and ask you to accept it in Settings → Billing. Until that date you keep paying the price you have now. If you do not accept by that date, your plan ends at the end of the period you have already paid for and your account continues on the free plan with your content kept; you can also switch to another size instead. We never change the price of a period you have already paid for, including a paid year.

Payment disputes. If you ask your bank or card issuer to reverse a payment for your subscription, the period it paid for is no longer paid. On the day we learn of the reversal your subscription ends and your account moves to the free plan, with your content kept under the free plan's rules; we tell you by email. We charge no fee, and you can subscribe again at any time. If part of the current period was paid by a payment that is not disputed, we refund the unused part of it. If you reverse a payment for extra usage, the unused balance it bought is removed. Please contact billing@avioverse.io first — we can usually resolve a billing problem, including a refund, faster than a bank.

A yearly plan is paid a year in advance and has a first term of one year from the day yearly billing starts, including when you switch from monthly billing (the unused part of the current month is credited). If you cancel during the first year, the plan ends at the end of that year. After the first year the plan continues until you cancel it and is billed yearly in advance; we remind you by email 30 days before each yearly renewal. You may then end it at any time: it ends at the next monthly anniversary of your billing date, so never more than one month after you cancel, and we refund the unused whole months of the year you paid for to your original payment method. The usage allowance on a yearly plan resets every month.

You can cancel at any time in Settings → Billing with "Cancel subscription", or without signing in with "Cancel a contract" at the foot of every page on avioverse.io. You choose whether the cancellation takes effect at the earliest possible end date (the end of the paid billing period, or for a yearly plan the date described above) or at a later renewal date, and you can also cancel for cause. We confirm every cancellation straight away by email, stating what you submitted, when we received it and when the contract ends; you can also save the confirmation from the page. Your paid access continues until the end date. Plan changes, payment failure and cancellation may affect future access or allowances but do not silently delete retained data. After you cancel we may offer you a smaller plan or a discount; accepting is optional, keeps your plan, and the offer's terms are shown before you accept.

A free plan is offered at no cost and without a payment card. It includes the reference libraries and workbench modules described before sign-up, together with a limited monthly AI allowance and a smaller storage quota. We may change what the free plan includes, or withdraw it, on reasonable notice; if we do, the account keeps the access to your existing content, export and deletion described in sections 6 and 14.

The free plan also serves as the trial of the Service: you can evaluate the workbench, the libraries and Metis before paying anything. Because a genuine trial is available before purchase, payments for paid subscriptions and for additional usage ("top-ups") are final and are not refunded for the period already paid or for balance already purchased, except the unused whole months of a yearly plan ended after its first year — cancelling stops future renewals, and your paid access continues until the end date we confirm. This does not limit any refund or withdrawal right that mandatory consumer law gives you.

Paid membership includes a monthly usage allowance that resets every month — at each billing date, or on a yearly plan at each monthly anniversary of the billing date — and does not roll over. Additional usage ("top-ups") may be purchased and is applied only after the monthly allowance. Purchased top-up balance is valid for 12 months from purchase and expires thereafter. Allowances and top-up balance are product-use units, not money or a transferable asset, and have no cash value except where a refund is required by law.

Each plan includes a storage allowance. If a plan change (for example, from a paid plan to the free plan) leaves your stored files above the new allowance, new uploads pause until you are back within it, and you have 30 days to remove files yourself; we notify you in-app and by email when this happens. If the account is still over the allowance after 30 days, we remove the oldest files automatically until usage fits, and post a summary of what was removed. This affects stored files only — it does not delete your other account data or records.

10. Consumer withdrawal and service remedies

If you are an EU or EEA consumer purchasing online, you normally have 14 days from the day the contract is concluded — the day your subscription starts, or the day you buy extra usage — to withdraw without giving a reason. To withdraw, use "Withdraw from contract here" in Settings → Billing, or "Withdraw from a contract" at the foot of every page on avioverse.io (no sign-in needed), or send an unambiguous statement to billing@avioverse.io. We confirm receipt straight away by email with what you submitted and when we received it.

Before you pay for a subscription or extra usage, you can ask us, with a separate box, to start straight away. If you asked and then withdraw, you pay only for what we provided until we receive your withdrawal: for a subscription, the part of the price for the time that has passed (if you changed size or billing, each price for the time it applied); for extra usage, the part you used. If you did not ask us to start straight away, we refund everything. We refund to your original payment method within 14 days of receiving your withdrawal.

Mandatory rights for digital services remain unaffected. If the Service is not supplied or does not conform to the contract, you may be entitled to have it brought into conformity, receive a proportionate price reduction or terminate and obtain a refund under applicable law. Nothing in these Terms waives those rights.

Model withdrawal notice

To Avioverse at billing@avioverse.io: I give notice that I withdraw from my contract for the Avioverse service ordered on [date]. Account email: [email]. Name: [name]. Date: [date].

You do not have to use this wording, or you can use the withdrawal function described above. Any clear statement sent before the deadline is enough.

11. Our intellectual property and sources

The Service, software, design, branding, original explanations, taxonomies and compiled datasets are owned by us or our licensors. We grant you a limited, revocable, non-transferable right to use them for your own lawful professional purposes while your account is active. Official regulations and third-party materials remain subject to their own legal status, attribution and licence terms; their inclusion does not transfer ownership.

12. Third-party services

The Service may connect to payment, authentication, messaging, storage, AI or other third-party services. Their own terms apply to your direct relationship with them. We are responsible for selecting and managing our processors as required by law, but we do not control a third-party service you independently connect or visit.

13. Availability and changes

We aim to keep Avioverse reliable, but maintenance, security work, supplier failures and events outside reasonable control can interrupt it. We may update features, providers, limits or source coverage. We will not materially reduce a paid service during its current billing period without a valid reason and appropriate notice, except where an urgent legal, security or safety issue requires faster action.

Where a change negatively affects a consumer's access or use beyond what is minor, any rights to notice, continued access, termination or refund under applicable digital-service law remain available.

14. Account deletion, suspension and termination

You may stop using the Service and delete your account in Settings → Account at any time. Deletion takes effect after a 30-day window. During the window you can sign in, read and download your content and data, and restore the account, but you cannot create or change content. A renewing subscription stops renewing when you make the request; paid access continues to the end of the period already paid for, and, as section 9 explains, the current period and any unused allowance or top-up balance are not refunded, except where mandatory law requires otherwise. If you restore the account, a renewal we stopped resumes; a cancellation you made yourself stays in force. At the end of the window the account is erased as described in the Privacy Policy; Teams you own pass to a remaining member and your contributions to them stay with those Teams (section 7).

Your own records. You, or the organisation you work for, remain responsible for keeping any records that aviation or other law requires you to keep — for example maintenance, continuing-airworthiness, training or audit records under EASA Part-145, Part-CAMO or Part-147 — and for exporting them before you delete your account or leave a Team. Our backups exist only to recover the Service after a failure: we keep a single daily backup, replaced by the next one within about 24 hours (48 hours if a backup run fails). They are not an archive and cannot be used to recover deleted content for you.

We may restrict or suspend access where reasonably necessary to address a security risk, payment failure, unlawful use or a material breach of these Terms. Where practical, we will explain the reason and allow you to correct the issue. We may terminate for a serious or repeated breach, or discontinue the Service with reasonable notice and an appropriate refund for prepaid unused time where required.

15. Responsibility and liability

Nothing in these Terms excludes or limits liability that cannot lawfully be excluded, including liability for fraud, wilful misconduct, death or personal injury caused by negligence, or mandatory consumer remedies. If you are a consumer, we are responsible for losses that were a foreseeable result of our breach or failure to use reasonable care.

If you use the Service wholly or mainly for a trade, business or profession, we are not liable for indirect or consequential loss, loss of profit, revenue, business, goodwill or anticipated savings. Subject to liabilities that cannot be limited, our aggregate liability for business use is limited to the fees you paid for the Service in the 12 months before the event giving rise to the claim.

16. Governing law and disputes

Contact support@avioverse.io first so we can try to resolve a concern. These Terms are governed by Cyprus law. If you are a consumer, this does not deprive you of mandatory protections of the country where you habitually live, and you may bring proceedings in any court available to you under applicable consumer law. For business users, the courts of Cyprus have exclusive jurisdiction.

17. Changes to these Terms

We may update these Terms to reflect legal, security or product changes. We will post the revised version and give reasonable advance notice of material changes. If a material change adversely affects a paid subscription, you may cancel before it takes effect and any mandatory termination rights remain unaffected. Changes to the price of your subscription need your agreement, as described in section 9; nothing in this section changes a price.

18. Contact

General and support questions: support@avioverse.io. Billing and withdrawal: billing@avioverse.io. Privacy: privacy@avioverse.io.