Terms of Use.

These Terms of Use (the “Terms”) are a legally binding agreement between you and Dafdef, inc., doing business as Interfaces (“Interfaces,” “we,” “us,” or “our”). They govern every Interfaces product and service, including our iOS, macOS, Android, and web applications; websites; AI models and agents; Silent Speech and voice features; developer tools, SDKs, and APIs; hardware we may offer; and research previews and experiments (collectively, the “Service”).

Our Privacy Policy and Research Agreement are part of these Terms. The Research Agreement is required for every person who creates or uses an Interfaces account because the Service is currently a research preview. If you do not agree to all three documents, do not access or use the Service.

1. One company-wide agreement

These Terms are the single terms of use for the entire Service. A product screen, developer page, or feature-specific explanation may describe how a feature works, but it does not create separate product terms, a separate developer agreement, or a separate research agreement.

If you use the Service for an organization, you represent that you have authority to accept these Terms for that organization. In that case, “you” includes the organization.

2. Eligibility

You must be at least 18 years old and legally able to enter into this agreement to create an account or use the Service. You may not use the Service if applicable law prohibits you from doing so.

3. Accounts, access, and security

You must provide accurate information, protect your credentials and devices, and promptly tell us about suspected unauthorized access. You are responsible for activity under your account. Access to a research preview, beta, waitlist, developer capability, model, or feature may be limited, changed, suspended, or revoked at any time.

Do not share credentials, API keys, capture links, or access invitations. We may suspend or terminate an account or credential if we reasonably believe it is compromised, used fraudulently, creates security or legal risk, or violates these Terms.

4. Research-preview service

Interfaces is a research preview. Features may be experimental, incomplete, inaccurate, delayed, unavailable, or materially changed. Access does not guarantee continued availability, a particular capability, or a production release.

The shared Silent Speech experience is intended to work without requiring you to train a custom model or submit a guided training set. If you choose to start custom-model training or another capture workflow, that choice starts the additional collection described in the Research Agreement; it is not a separate agreement and it is not required merely to access the shared experience.

5. AI output and agent actions

AI output and actions may be wrong, incomplete, misleading, delayed, or inappropriate. Review consequential output and supervise actions before relying on them. The Service is not emergency infrastructure and is not a substitute for medical, legal, financial, tax, therapeutic, safety, or other professional advice.

Some features may remember context, communicate proactively, operate software, or take actions at your direction. You authorize us and our service providers to process the information and perform the steps needed to carry out those instructions. You remain responsible for your instructions and for ensuring you are authorized to control the relevant account, system, data, or device.

6. Your content and permissions

You retain ownership of content you submit. You grant Interfaces a worldwide, non-exclusive, royalty-free license to host, copy, process, transmit, transform, derive features from, and otherwise use that content as needed to:

• provide, personalize, secure, maintain, and support the Service;
• follow your instructions and operate AI and agent features; and
• conduct the research, evaluation, model training, and improvement described in the Research Agreement and Privacy Policy.

This license lasts only as long as needed for those purposes, subject to the retention, withdrawal, deletion, and already-completed-training limits in the Privacy Policy and Research Agreement.

You represent that you have the rights and legally required permissions to submit your content. Submit only your own face, mouth, and voice recordings to personal capture and model-training features. Do not record or submit another person without their legally sufficient permission.

7. Developer platform and APIs

If we give you developer access, you may use our APIs, SDKs, credentials, documentation, and models only under these Terms and the applicable documentation. There is no separate Developer Agreement.

You are responsible for your integration, security, notices, end users, and compliance with law. You must have a valid legal basis and all required permissions before sending another person’s data to the Service. Your own acceptance of the Research Agreement does not authorize you to submit end-user, employee, customer, or other third-party data for research or model training.

Do not expose API keys or evade access controls, rate limits, safety controls, or usage restrictions. We may rotate or revoke credentials and change or deprecate developer interfaces.

8. Acceptable use

You may not use the Service to:

• break the law or violate another person’s intellectual-property, privacy, publicity, contractual, or other rights;
• harm, exploit, threaten, harass, deceive, or impersonate another person;
• submit another person’s biometric, face, mouth, or voice data without legally sufficient authorization;
• identify, profile, surveil, or track a person through biometric recognition;
• gain unauthorized access, distribute malware, disrupt the Service, or bypass security or rate limits;
• reverse engineer or extract models, weights, prompts, data, or non-public system behavior except where law expressly permits it;
• use automated access except through interfaces we authorize;
• build or train a competing model using outputs or non-public aspects of the Service without our written permission; or
• use the Service for emergency, safety-critical, weapons, unlawful surveillance, or high-stakes automated decisions about another person.

9. Third-party services

The Service may use or connect to third-party authentication, cloud, analytics, AI, speech, app-store, and operating-system services. Their services may be governed by their own terms and policies. We are not responsible for third-party products you independently choose or control.

10. Fees and taxes

Some features may be free, metered, paid, or subject to limits. We will disclose applicable pricing before charging you. Unless the law requires otherwise, fees are non-refundable. You are responsible for applicable taxes and third-party connectivity or device charges.

11. Interfaces intellectual property

Interfaces and its licensors own the Service, including software, models, designs, documentation, trademarks, and all related intellectual-property rights, excluding your content. Except for the limited right to use the Service under these Terms, no rights are transferred to you.

Feedback is voluntary. If you provide feedback, you grant us a perpetual, worldwide, irrevocable, royalty-free license to use it without restriction or compensation, provided we handle any personal information under the Privacy Policy.

12. Availability, changes, and termination

We may modify, suspend, or discontinue any part of the Service. You may stop using the Service and request account deletion at any time. We may suspend or terminate access for a violation, security or legal risk, nonpayment, discontinued preview, or other reasonable operational need.

Termination does not erase rights or obligations that by their nature survive, including ownership, completed licenses, payment obligations, disclaimers, liability limits, indemnification, dispute terms, and records we must retain. Data handling after termination follows the Privacy Policy and Research Agreement.

13. Disclaimers

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE.” INTERFACES DISCLAIMS ALL EXPRESS, IMPLIED, AND STATUTORY WARRANTIES, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, ACCURACY, AVAILABILITY, AND THAT THE SERVICE WILL BE SECURE OR ERROR-FREE.

Some jurisdictions do not allow certain disclaimers, so some of these provisions may not apply to you.

14. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, INTERFACES AND ITS OFFICERS, DIRECTORS, EMPLOYEES, CONTRACTORS, AFFILIATES, LICENSORS, AND SERVICE PROVIDERS WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES; LOST PROFITS, REVENUE, DATA, GOODWILL, OR OPPORTUNITY; OR THE COST OF SUBSTITUTE SERVICES.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, OUR TOTAL LIABILITY ARISING OUT OF OR RELATING TO THE SERVICE OR THESE TERMS WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID INTERFACES FOR THE SERVICE DURING THE TWELVE MONTHS BEFORE THE EVENT GIVING RISE TO LIABILITY OR (B) US$100.

Nothing in these Terms excludes liability that cannot legally be excluded.

15. Indemnification

To the extent permitted by law, you will defend, indemnify, and hold harmless Interfaces and its officers, directors, employees, contractors, and affiliates from claims, damages, losses, liabilities, and expenses (including reasonable legal fees) arising from your content, integration, end users, use of the Service, violation of these Terms or law, or violation of another person’s rights.

16. Disputes, arbitration, and class-action waiver

Before filing a claim, you and Interfaces agree to try in good faith to resolve it informally for 30 days after written notice. Send notice to legal@interfaces.inc.

Except for an eligible individual small-claims matter or a request for injunctive relief concerning intellectual property or unauthorized access, any dispute arising from these Terms or the Service will be resolved by binding individual arbitration administered by the American Arbitration Association under its applicable Consumer or Commercial Arbitration Rules. Arbitration may occur remotely unless the arbitrator requires otherwise.

YOU AND INTERFACES WAIVE A JURY TRIAL AND AGREE TO BRING CLAIMS ONLY IN AN INDIVIDUAL CAPACITY, NOT AS A PLAINTIFF, CLASS MEMBER, OR REPRESENTATIVE IN A CLASS, COLLECTIVE, CONSOLIDATED, OR REPRESENTATIVE ACTION.

You may opt out of arbitration by emailing legal@interfaces.inc within 30 days after first accepting these Terms, with your name, account email, and a clear statement that you opt out. If law makes part of this section unenforceable, the remaining parts continue to apply to the maximum extent permitted.

17. Governing law

Delaware law governs these Terms without regard to conflict-of-law rules. For disputes not subject to arbitration, you and Interfaces consent to the exclusive jurisdiction of state and federal courts located in Delaware, except where applicable consumer law requires otherwise.

18. General terms

These Terms, the Privacy Policy, the Research Agreement, and any order terms are the entire agreement between you and Interfaces concerning the Service. If a product explanation conflicts with them, these documents control. If one provision is unenforceable, the remainder stays effective. A failure to enforce a provision is not a waiver. You may not assign these Terms without our consent; we may assign them in connection with a reorganization, financing, merger, acquisition, or asset transfer.

19. Changes

We may update these Terms. We will provide notice of material changes through the Service, by email, or on this page. If a change requires renewed acceptance, you must accept the new version before continuing to use the Service.

20. Contact

Dafdef, inc. d/b/a Interfaces
legal@interfaces.inc