Who these terms cover
These Terms & Conditions govern your use of the Seraph Aerospace website, Seraph Vantage software, account services, hosted Vantage Assistant, purchases, and issue-reporting services that refer to these terms (together, the “Services”). Seraph Aero is a product of BETHL LLC, referred to here as “Seraph,” “we,” “us,” or “our.” Seraph Aerospace is our product brand.
By expressly accepting these terms, or using a Service after they have been presented as its terms of use, you agree to them. If you act for an organization, you must have authority to bind that organization. If you do not agree, do not use that Service or submit its agreement form. The Privacy Policy explains our handling of personal information; acknowledging it does not waive your privacy rights or consent to unrelated marketing.
The price, billing interval, included benefits, release availability, and other material terms displayed for a specific purchase form part of that purchase. An individually agreed written contract controls if it expressly replaces a conflicting provision here. Mandatory consumer rights always prevail.
Eligibility and account responsibility
You must be legally able to enter into this agreement. If you are below the age of majority where you live, a parent or legal guardian must authorize and supervise your use and take responsibility for the agreement. The Services are not directed to children under 13; do not create an account or submit personal information if you are under 13.
Account registration is free. A software subscription, AI subscription, or credit purchase is a separate transaction. Use accurate account information, protect your credentials, and notify us promptly of suspected unauthorized access. Do not share an account to evade access or usage limits, impersonate another person, or use someone else’s payment method without permission.
You are responsible for activity you authorize through your account and for the security of your devices, workspace backups, and API keys. This does not make you responsible for losses that applicable law assigns to us or your payment provider. We may require reasonable verification before changing account ownership or releasing account information.
Beta status, releases and availability
Vantage is beta software. Features, compatibility, interfaces, and release schedules can change; errors, interruptions, and incomplete features may occur. Save and back up important work, review compatibility information, and verify results before using them in an engineering decision.
Check the Download page and the purchase screen for current installer availability. Purchasing an offer does not make an unpublished installer available. Roadmaps, demonstration media, and “coming soon” descriptions are not delivery guarantees unless your order expressly says otherwise.
We may maintain, update, replace, or discontinue features and impose reasonable technical limits. If a material change affects a paid commitment, we will address notice, cancellation, access, and any required remedy under the purchase terms and applicable law. Beta participation does not guarantee production access beyond what you purchased.
Software license and intellectual property
The standard license belongs to one individual user and permits installation on up to two devices. Keep your account personal; device replacement is handled through support without requiring a second purchase.
Subject to your valid access rights and these terms, we grant you a limited, non-exclusive license to install and use the software for your lawful personal or business engineering work. We retain ownership of the Services, software, branding, interface designs, and documentation. This agreement does not transfer our intellectual property to you.
Do not redistribute, sell, sublicense, remove ownership notices from, or bypass access restrictions on the software except as expressly allowed by your order, a separate license, or applicable law. Reverse engineering restrictions apply only to the extent permitted by law. Open-source components and third-party assets remain subject to their respective licenses, which control for those components.
Pro Outright costs $199 once and provides permanent Pro software access with ongoing software updates. Monthly Pro costs $15 per month and provides Pro access and updates while paid. Each includes $5 of hosted AI usage: once for outright, or each paid monthly period for monthly Pro. An outright software license does not expire when AI credits run out. It does not inherently include unlimited hosted AI, future subscriptions, third-party service fees, or perpetual operation of every hosted service.
Third-party software and Unreal Engine
Third-party components, including open-source libraries, controller firmware and Unreal Engine technology, are governed by their applicable licenses and notices. Those licenses control for the covered components and preserve rights they grant you. The installer and offline guide include the applicable third-party notices and source-material information.
Unreal Engine technology may be used only as incorporated into Vantage in object-code form and only as necessary to use Vantage. These terms do not grant a right to extract that technology or incorporate it into another product, service or project. For the Unreal Engine technology, Seraph expressly disclaims representations, warranties, conditions and liabilities, including on behalf of Epic Games and its licensors, to the extent permitted by applicable law. Mandatory rights remain unaffected.
Separate provider, firmware and component licenses may contain additional conditions. Seraph software restrictions do not override open-source rights. Availability of source materials or a successful build is not a statement that third-party rights have been independently commercially cleared.
Engineering, simulation and hardware boundaries
Vantage assists with system design, component discovery, mission and autonomy planning, local simulation, control studies, code, tests, power estimates, and telemetry workflows. A simulation, rendered aircraft, map route, compatibility badge, or successful software test is not certification that an aircraft is airworthy or a design is safe.
Outputs depend on the model, assumptions, units, component data, configuration, and inputs you supply. Verify sensor data, mass, thrust, gains, coordinate frames, firmware support, and operating limits independently. Review generated or modified code before building, installing, or running it.
The current engineering and simulation workflows do not grant permission to operate an aircraft or imply autonomous control of physical flight. Hardware tools can have device-specific effects when expressly supported; follow the application’s review and confirmation steps. You remain responsible for qualified engineering review, safe test conditions, firmware instructions, local aviation rules, permissions, and any required insurance or certification.
Do not rely on the Services as the sole control, safety, or decision system for a use in which an error could cause death, personal injury, significant property damage, or environmental harm.
Orders, prices and payments
Prices and currency appear before purchase. A displayed dollar price is in US dollars unless the offer says otherwise. Applicable taxes, currency conversion, and any payment-provider charges are disclosed or handled at checkout as applicable. We use Stripe to process payments and billing; you authorize only the charges and recurring payment terms you accept.
A purchase is subject to successful payment, fraud checks, and verification. Account access and credits may take time to appear while payment is reconciled. If payment is pending, refresh your account or contact support before paying again. An unpaid, reversed, refunded, fraudulent, or disputed payment may affect the associated entitlement or credit.
We may correct an obvious pricing or description error before accepting an order and will contact you where appropriate. We do not retroactively change the agreed price of a completed purchase merely by changing this page. Nothing here authorizes an undisclosed fee or an additional purchase without the required consent.
Subscriptions, renewal and cancellation
A subscription renews at the interval and price you accept at checkout until canceled, subject to any stated promotion period and applicable law. Your account and Stripe billing portal show available billing details and management controls. We will provide notice of material renewal or price changes, and obtain consent where required.
Cancel future renewals through your account and its billing management link. If that flow is unavailable, contact team@seraphaero.com with the account email and enough information to identify the subscription. Do not send full card details. A technical problem with our cancellation flow does not remove your cancellation rights.
Unless an offer or mandatory law says otherwise, cancellation stops future renewal and paid access continues through the period already purchased. Uninstalling Vantage, signing out, deleting local files, or requesting deletion of an issue report does not itself cancel a subscription. Cancellation and a refund request are separate actions; tell us if you need both.
AI credits, usage rates and expiry
Hosted AI uses account credits at the published Vantage AI rates. Usage can include instructions, your question, conversation and workspace context, cached input where available, generated responses, and reasoning tokens reported as output. The number of requests a balance supports varies with their size.
Before a request, an estimated amount may be reserved. Actual usage is settled when it can be confirmed; uncertain or still-running requests may retain a reservation while reconciliation completes. Your available balance excludes amounts held for requests in progress. A small deduction may be recorded more precisely than a rounded balance display.
Paid top-ups add the credit amount shown at purchase. Current options are $5, $10, $25, $50, and $100. Each purchased top-up expires 12 months after payment, except where a longer period or other treatment is required by law. Monthly allowances expire at the end of their allowance period and do not accumulate unless an offer expressly provides rollover. Promotional credit may have its own disclosed conditions.
Credits are for eligible hosted AI Services, are not bank deposits, and are not transferable or redeemable for cash except where required by law or an applicable refund policy. Buying AI credits does not itself purchase software access. Canceling a software subscription does not shorten an otherwise valid purchased top-up’s stated life.
Rates may change prospectively with appropriate notice. We will not reprice completed requests retroactively. Using your own API key is billed by that provider under its terms and does not use your Vantage credit balance for those requests.
Billing errors, refunds and disputes
Report a suspected duplicate charge, incorrect deduction, unauthorized payment, or missing entitlement promptly to team@seraphaero.com. Include the account email, date, amount, and receipt or report reference if available. We will review the payment and usage records and correct verified errors.
You may request a refund within seven days after each payment, including subscription renewals. For Pro software, we deduct only the included AI credit actually consumed from that payment, at the published customer usage rate, rounded up to the next cent. For example, $1.25 of included AI used from a $15 monthly Pro purchase leaves a $13.75 refund. The deduction cannot exceed the included $5 allowance. We remove the refunded software access and its unused included AI; separate purchased AI credits remain separate. A software subscription refund also cancels its future renewals. Requests with unsettled AI usage wait until that usage is confirmed.
Standalone Assistant and top-up refunds cover the unused paid proportion of the original credit grant. For Assistant Plus, bonus credit has no separate cash value; the unused proportion is applied to the price actually paid. Refunding AI credit does not itself cancel an Assistant subscription: use Manage billing to stop renewal. Contact team@seraphaero.com for a software refund, billing error, or legally required remedy if the account flow is unavailable.
Any more favorable refund offer displayed for your purchase applies along with mandatory legal rights. These terms do not create a blanket “no refunds” rule or remove a legally required remedy. A cancellation does not automatically refund an elapsed period or consumed AI usage, except where the offer or law requires it.
If a payment is refunded or reversed, the related unused credit or entitlement may be adjusted to prevent the same purchase being used twice. We will review discrepancies rather than treating a payment dispute as an automatic waiver of your rights.
AI assistance and third-party services
AI-generated explanations, research, calculations, code, and recommendations can be incomplete or wrong. Independently review accuracy, assumptions, licenses, security, and suitability. AI output is not professional certification, flight authorization, legal advice, or a guarantee of performance.
Send only information you have authority to share. Selected context may be sent to an AI provider when you use an enabled assistant feature. Provider availability, model behavior, rate limits, and policies can affect the feature. See the AI section of our Privacy Policy before sending confidential information.
You retain rights you already have in your inputs. We do not claim ownership of your project merely because you use an assistant. Any rights in AI output depend on applicable law and relevant provider terms; output may not be unique or legally protectable. You are responsible for reviewing it before publication or use.
Maps, firmware, boards, plugins, open-source software, hosting, email, and payment services may be provided by others. Their licenses and policies apply to their services. A compatibility listing does not imply endorsement or guarantee support for every configuration.
Your projects, files and backups
You retain ownership of your project files, source code, designs, recordings, and other original content. You grant us only the permissions reasonably necessary to process content you choose to submit for the Service you request, such as an AI response or support investigation.
After initial online sign-in and verification, eligible monthly Pro features can be used offline for up to seven days, never beyond the paid-through date. Pro Outright features can be used offline for up to thirty days between successful online checks. Monthly beta software access follows the same seven-day cap and paid-through limit. These periods restart only after successful server verification; changing a local setting does not renew them. Refunds, cancellation or revocation are applied when the app receives a current online account decision, so an offline device may retain previously verified software access until its cached period ends. Hosted AI and its current credit balance require fresh online verification and remain separate from cached software access. An offline verification expiry requires reconnecting to refresh access; it does not turn an outright license into a subscription or require another software purchase. If account services are permanently discontinued, we will provide a continued-access mechanism for valid outright licenses before shutdown, subject to applicable law and third-party licenses.
Local workspace files are generally stored on your device or chosen storage location. Do not assume they are backed up to your account. Keep independent backups, verify exports and migrations, and protect any linked storage or third-party credentials. The Privacy Policy distinguishes local files from information sent to hosted services.
Issue reports, screenshots and feedback
Submitting an issue report is voluntary and does not require an account. Before sending, you must accept the current Terms & Conditions and acknowledge the Privacy Policy. We record that acknowledgement, the policy version, and the server receipt time with the report.
The form sends the text you enter, optional email, issue category, page path, browser details, browser window size, and any screenshot you select. It does not automatically capture your screen. Remove passwords, API keys, payment information, private customer data, and other unnecessary sensitive material before submitting. You must have permission to share the material and information about other people.
You retain ownership of your report content. You authorize Seraph and its support service providers to store, review, reproduce, and use that content as reasonably needed to investigate the issue, respond, maintain evidence, and improve the affected Service. This does not authorize public posting of your screenshot or personal information without a separate basis or permission.
We may use general suggestions and ideas to improve the Services without an obligation to compensate you; this does not transfer ownership of your confidential code or other protected content. A report does not guarantee a response time, fix, refund, vulnerability bounty, or release date. For legal or privacy requests, contact legal@seraphaero.com.
Acceptable use and security
Use the Services lawfully and within the access you are granted. Do not attempt unauthorized access, steal credentials, exploit other users’ data, disrupt infrastructure, bypass usage accounting, submit malicious files, abuse reporting or payment flows, or use the Services to infringe another person’s rights.
Respect applicable aviation, communications, privacy, intellectual-property, and export-control restrictions. Do not use the Services to build or operate unlawful or harmful systems. Security research must avoid accessing other people’s data or disrupting service; report a suspected vulnerability privately to our legal contact.
Suspension, termination and service changes
We may restrict access where reasonably necessary to address fraud, security threats, unlawful activity, unpaid charges, material violations, or technical failures. Where practical and lawful, we will explain the issue and provide a way to contact us or resolve it. Immediate action may be necessary to protect users or systems.
You may stop using the Services and request account deletion. Separately cancel recurring subscriptions to stop future renewal; we will help resolve a combined cancellation and deletion request. Termination does not erase valid unpaid obligations, required transaction records, or rights that by their nature continue. Any treatment of unused paid access or credit remains subject to your purchase terms and applicable law.
Warranties and limitations
To the extent permitted by law, the beta Services are provided “as is” and “as available.” We do not promise uninterrupted or error-free operation, a particular engineering outcome, compatibility with every device, or that AI and simulation results will meet every purpose.
To the extent permitted by law, we disclaim implied warranties of merchantability, fitness for a particular purpose, and non-infringement that are not expressly required or promised. This does not limit an express commitment in your order or a warranty, remedy, or consumer protection that cannot lawfully be excluded.
To the extent permitted by law, we are not responsible for indirect or consequential losses, lost profits, business interruption, or loss of data arising from reliance on the Services. You remain responsible for independent backups and engineering verification. These exclusions do not apply where prohibited, including any liability for fraud, intentional misconduct, or other liability that cannot legally be limited. Direct claims and mandatory remedies remain governed by applicable law.
Legal requests and disputes
For a legal notice or dispute, write to legal@seraphaero.com identifying the Service, relevant account or transaction, concern, and requested resolution. We will seek a reasonable resolution in good faith. This contact route does not prevent you from using a regulator, payment-provider dispute process, competent court, or other right available under law.
The law that validly applies to your relationship with BETHL LLC governs, including any mandatory consumer protections in your place of residence. A dispute may be brought in a court with lawful jurisdiction. These terms do not require you to waive a right or remedy that cannot be waived.
Changes, interpretation and contact
We will identify revised terms by their effective date and version. Changes apply prospectively; material changes to a paid Service or an ongoing contractual relationship will receive any notice and consent required by law. A revised legal page alone does not authorize a new charge or retroactively replace the terms of a completed transaction.
If a provision is unenforceable, the remaining provisions continue to the extent lawful. A failure to enforce a provision immediately is not a waiver. You may not transfer an account or agreement in a way that defeats access restrictions; any transfer by us remains subject to law and your existing rights.
Operator: BETHL LLC, Dover, Delaware, United States, operating in Philadelphia, Pennsylvania.
Mailing address: 121 S Broad St., 15th Floor PMB 1131, Philadelphia, PA 19107, United States.
Legal and privacy: legal@seraphaero.com.
Product and billing support: team@seraphaero.com.