Terms of Service
Last updated: April 1, 2026
These Terms of Service (the "Terms") are a binding agreement between you and Castle 11 Labs, LLC, a Delaware limited liability company ("Castle 11 Labs," "we," "us," or "our"), with a notice address at 169 Madison Ave, STE 58067, New York, NY 10016.
The Terms govern your use of castle11labs.com (the "Site") and your purchase of our digital products, including our audio plugin software (the "Products"). By using the Site or purchasing a Product, you agree to these Terms. If you do not agree, do not use the Site.
Your use of the Products themselves is governed by our End User License Agreement (the "EULA"). Purchases are also subject to our Refund Policy. Our Privacy Policy describes how we handle your personal information. If you participate in our private beta program, the Castle 11 Labs Beta Software Agreement governs your use of beta software and controls over these Terms with respect to beta software.
These Terms contain an arbitration agreement and class action waiver (Section 14). It affects how disputes between you and Castle 11 Labs are resolved. You may opt out within 30 days — see Section 14.6.
1. Eligibility
You must be at least 13 years old to use the Site. You must be at least 18 years old (or the age of majority where you live, if higher) to purchase a Product or create an account. By purchasing, you represent that you meet this requirement.
2. Accounts
You may browse the Site and make purchases without an account. If you create an account, you may register with an email address and password or by signing in with Google or Apple.
You are responsible for the accuracy of the information you provide, for maintaining the confidentiality of your credentials, and for all activity under your account. Notify us at legal@castle11labs.com immediately if you suspect unauthorized use of your account.
We may suspend or terminate your account if you materially breach these Terms, the EULA, or applicable law. Termination of your account does not by itself terminate validly purchased licenses, which are governed by the EULA.
3. Purchases and Payment
3.1 Orders. All purchases are offers to buy that we accept when we deliver the Product or license key. We may decline or cancel an order for suspected fraud, pricing or listing errors, or unavailability; if we cancel after payment, we will refund you in full.
3.2 Pricing. Prices are listed in U.S. dollars unless stated otherwise and may change at any time. Price changes do not affect completed purchases.
3.3 Payment processing. Payments are processed by Stripe. We do not receive or store your full card number. Your payment is also subject to Stripe's terms and privacy policy.
3.4 Taxes. Where required, applicable sales tax, VAT, or similar taxes are calculated and collected at checkout based on your location. Displayed prices may be exclusive of such taxes, which will be shown before you complete payment.
3.5 Guest checkout. You may purchase without an account. Your purchase is associated with the email address you provide at checkout, and you may later claim it into an account registered to that same email address.
4. Digital Delivery
Products are delivered digitally: after successful payment, you will receive download access and a license key by email and, if you have an account, in your account dashboard. No physical goods are shipped. If you do not receive your Product within a reasonable time after payment, contact legal@castle11labs.com and we will re-deliver it.
5. Licenses
Products are licensed, not sold. Your rights to install and use a Product are set out exclusively in the EULA, including the perpetual license grant, the limit of 2 machine activations, and the restrictions on transfer and reverse engineering. If these Terms and the EULA conflict with respect to a Product, the EULA controls.
6. Refunds
Purchases are covered by our Refund Policy: a 14-day, no-questions-asked refund window. A refund revokes the associated license and deactivates it. If you are a consumer in the EU or UK, the Refund Policy also explains how it interacts with your statutory withdrawal rights.
7. Beta Program and Waitlist
7.1 Beta. Participation in our private beta program is governed by the Castle 11 Labs Beta Software Agreement, which you must accept separately. Beta software is provided as-is for testing, and nothing in these Terms grants any rights to beta software.
7.2 Waitlist. You may join a pre-launch waitlist by providing your email address. Joining the waitlist creates no obligation for either of us: it does not guarantee product availability, pricing, or launch timing, and you may unsubscribe at any time.
8. Acceptable Use
You agree not to:
- use the Site or Products in violation of applicable law;
- share, publish, or distribute license keys, or circumvent or attempt to circumvent licensing, activation, or access controls;
- interfere with the operation or security of the Site, including by probing, scanning, or testing vulnerabilities without our written authorization;
- scrape, harvest, or collect data from the Site by automated means, other than ordinary search engine indexing;
- impersonate any person or entity, or misrepresent your affiliation with any person or entity; or
- resell, frame, or mirror the Site or any part of it.
We may suspend access to the Site for violations of this Section.
9. Intellectual Property; Feedback
The Site and the Products, including all software, code, designs, text, graphics, logos, audio, and trademarks, are owned by Castle 11 Labs or its licensors and are protected by intellectual property laws. Except for the limited rights expressly granted in these Terms and the EULA, no rights are granted to you.
If you send us feedback, suggestions, or ideas about the Site or Products, you grant us a perpetual, irrevocable, worldwide, royalty-free license to use them for any purpose without obligation or compensation to you. This does not apply to your personal information, which is handled under the Privacy Policy.
10. Copyright Complaints (DMCA)
We respond to notices of alleged copyright infringement under the Digital Millennium Copyright Act. If you believe content on the Site infringes your copyright, send a notice containing the information required by 17 U.S.C. § 512(c)(3) to our designated agent:
DMCA Agent Castle 11 Labs, LLC 169 Madison Ave, STE 58067 New York, NY 10016 legal@castle11labs.com
We may remove or disable access to allegedly infringing material and may terminate repeat infringers' accounts. If your material was removed and you believe the removal was a mistake, you may submit a counter-notice meeting the requirements of 17 U.S.C. § 512(g)(3) to the same agent.
11. Third-Party Services
The Site relies on third-party services (for example, payment processing by Stripe and sign-in by Google or Apple). Your use of those services is governed by their own terms. We are not responsible for third-party services we do not control, but this does not limit our responsibility for our own obligations under these Terms.
12. Disclaimers
The Site is provided "as is" and "as available." To the fullest extent permitted by law, we disclaim all warranties regarding the Site, express or implied, including merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Site will be uninterrupted, secure, or error-free.
Warranties and disclaimers that apply to the Products themselves are set out in the EULA.
Consumer rights. If you are a consumer, you may have rights under the mandatory consumer protection laws of the country where you live (including, for consumers in the EU and UK, statutory rights relating to the conformity of digital content). Nothing in these Terms excludes, limits, or waives those rights.
13. Limitation of Liability
To the fullest extent permitted by law:
13.1 Neither party is liable for indirect, incidental, special, consequential, or punitive damages, or for lost profits, revenues, data, or goodwill, arising out of or relating to these Terms or the Site, even if advised of the possibility of such damages.
13.2 Our total aggregate liability arising out of or relating to these Terms or the Site is limited to the greater of (a) the amounts you paid us in the 12 months before the event giving rise to liability, and (b) US $50.
13.3 Nothing in these Terms limits or excludes liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, for gross negligence or willful misconduct, or for any other liability that cannot be limited or excluded under applicable law. If you are a consumer in the EU or UK, the limitations in this Section apply only to the extent permitted by the law of your country of residence.
14. Dispute Resolution; Arbitration Agreement; Class Action Waiver
Please read this Section carefully. It requires most disputes to be resolved through binding individual arbitration rather than in court, unless you opt out.
14.1 Informal resolution first. Before starting arbitration or litigation, you and we agree to try to resolve any dispute informally. Either party may begin the process by sending the other a written notice describing the dispute and the relief sought (to us: legal@castle11labs.com). The parties will negotiate in good faith for 60 days from receipt of the notice. Arbitration or litigation may be started only after this period ends.
14.2 Agreement to arbitrate. Except as set out in this Section, you and Castle 11 Labs agree that any dispute, claim, or controversy arising out of or relating to these Terms, the Site, or the Products will be resolved by binding arbitration administered by the American Arbitration Association ("AAA") under its Consumer Arbitration Rules then in effect. The Federal Arbitration Act governs the interpretation and enforcement of this Section. Judgment on the award may be entered in any court of competent jurisdiction.
14.3 Procedure. Arbitration will be conducted by a single arbitrator. For claims of US $25,000 or less, the arbitration will be conducted on the basis of documents only, unless either party requests a hearing or the arbitrator determines a hearing is necessary. Any hearing will be held by videoconference, or, if the arbitrator determines an in-person hearing is required, in the county where you live. Arbitration fees and costs will be allocated as provided in the AAA Consumer Arbitration Rules. The arbitrator may award any relief a court could award to the individual claimant.
14.4 Exceptions. This arbitration agreement does not prevent either party from (a) bringing an individual claim in small claims court, or (b) seeking injunctive or other equitable relief in court for actual or threatened infringement or misuse of intellectual property or for unauthorized access to the Site or Products.
14.5 Class action waiver. You and Castle 11 Labs each waive the right to a trial by jury and the right to participate in a class action, collective action, or representative proceeding. Disputes will be arbitrated or litigated only on an individual basis. If this class action waiver is found unenforceable as to a particular claim, that claim (and only that claim) shall proceed in court, and the waiver shall remain in effect for all other claims.
14.6 Your right to opt out. You may opt out of this arbitration agreement and class action waiver by emailing legal@castle11labs.com within 30 days of first accepting these Terms, with the subject line "Arbitration Opt-Out," stating your name, the email address associated with your account or purchase, and a clear statement that you opt out of arbitration. Opting out does not affect any other part of these Terms.
14.7 Consumers outside the United States. If you are a consumer and the mandatory law of your country of residence does not permit pre-dispute arbitration agreements or the exclusive application of the governing law and venue in Section 15, then to that extent this Section does not apply to you, and you may bring claims in the courts of, and rely on the mandatory consumer protections of, your country of residence.
15. Governing Law and Venue
These Terms are governed by the laws of the State of Delaware, without regard to its conflict-of-laws rules. Subject to Section 14, any dispute not subject to arbitration will be brought exclusively in the state or federal courts located in Delaware, and both parties consent to their jurisdiction. Section 14.7 applies to consumers outside the United States. The United Nations Convention on Contracts for the International Sale of Goods does not apply.
16. Changes to These Terms
We may update these Terms from time to time. If we make material changes, we will give notice by posting the updated Terms on the Site with a new "Last updated" date and, where the change materially affects existing customers, by email. Changes apply prospectively from their effective date; your continued use of the Site after that date constitutes acceptance. Changes do not retroactively alter the terms that applied to a completed purchase.
17. General
17.1 Entire agreement. These Terms, together with the EULA, Refund Policy, Privacy Policy, and (if applicable) the Castle 11 Labs Beta Software Agreement, are the entire agreement between you and us regarding the Site and Products.
17.2 Severability. If any provision of these Terms is held unenforceable, it will be enforced to the maximum extent permissible and the remaining provisions will remain in full effect.
17.3 Waiver. Our failure to enforce a provision is not a waiver of our right to enforce it later.
17.4 Assignment. You may not assign these Terms without our written consent. We may assign these Terms in connection with a merger, acquisition, or sale of assets, provided the assignee assumes our obligations to you.
17.5 Force majeure. Neither party is liable for delay or failure to perform (other than payment obligations) caused by events beyond its reasonable control.
17.6 Notices. Legal notices to us must be sent to legal@castle11labs.com or to Castle 11 Labs, LLC, 169 Madison Ave, STE 58067, New York, NY 10016. We may send notices to the email address associated with your account or purchase.
18. Contact
Castle 11 Labs, LLC 169 Madison Ave, STE 58067 New York, NY 10016 legal@castle11labs.com