Terms of Service

Last updated: May 23, 2026

1. Agreement to Terms

These Terms of Service ("Terms") constitute a legally binding agreement between you ("User," "you," or "your") and Human Interface Design LLC, doing business as OS1 ("Company," "we," "us," or "our"), governing your access to and use of the OS1 mobile application, the website OS1.computer, and all related services (collectively, the "Service").

By accessing or using the Service, you agree to be bound by these Terms. If you do not agree, you must not access or use the Service.

2. Eligibility

You must be at least 13 years old to use the Service. By using the Service, you represent and warrant that you meet this requirement and have the legal capacity to enter into these Terms. If you are using the Service on behalf of an organization, you represent that you have authority to bind that organization to these Terms.

3. Account Registration

You may be required to create an account to access certain features. You are responsible for maintaining the confidentiality of your account credentials and for all activities that occur under your account. You agree to notify us immediately of any unauthorized use of your account. We reserve the right to suspend or terminate your account at our sole discretion, with or without notice, for any reason.

4. The Service

OS1 provides a unified AI assistant experience that may include chat, search, reasoning, media generation, optional memory, optional iCloud sync, notifications, and tools that can use information you choose to provide or authorize. The Service may route requests to third-party artificial intelligence models, infrastructure providers, and tool providers.

The availability, accuracy, and capabilities of any AI model are determined by the respective third-party provider and may change without notice. We make no representations or warranties regarding the output, reliability, or accuracy of any AI model.

5. Model Availability

We reserve the right to add, remove, or change the AI models available through the Service at any time, at our sole discretion, without prior notice. Models that are available today may be deprecated, replaced, or become unavailable in the future. New models may be introduced at any time. We make no guarantee that any specific model will remain available, and the removal or unavailability of any model shall not entitle you to a refund or any other remedy.

6. Data Storage

The OS1 mobile application stores your conversation history locally on your device, and, if iCloud sync is enabled, also in your personal iCloud account via Apple's CloudKit infrastructure. Your messages, attachments, outputs, and related metadata pass through our servers and through the underlying providers we use in order to produce responses, run tools, process uploads, generate media, and operate the Service.

We store server-side data where needed to operate and improve the Service, including account and authentication data, push notification tokens, feature preferences, subscription and credit records, generated media and media jobs, safety and abuse signals, diagnostics, and related operational metadata. If memory is enabled, we may store short memories derived from your conversations so future responses can be more personalized. We may delete server-side data when it is no longer needed, when an account is terminated, or as otherwise described in our Privacy Policy.

Memory and iCloud sync are product features, not guarantees of permanent storage or backup. You are responsible for maintaining your own copies of content that is important to you.

7. Subscriptions, Payments, and Credits

Certain features of the Service may require a paid subscription or credits. Purchases may be processed through Apple In-App Purchase, Stripe, or another payment processor we support. Purchases made in the iOS app are processed as required by Apple's App Store rules. Each purchase is subject to the pricing, payment, renewal, cancellation, and refund terms presented at the time of purchase by us, Apple, Stripe, or the applicable payment processor. Subscriptions automatically renew unless cancelled before the renewal date.

Refund requests for Apple In-App Purchases are handled by Apple, and Apple may grant or deny refunds in its discretion. Refund requests for purchases processed through Stripe or another payment processor may be handled by us or that processor, depending on the purchase flow. Except as required by applicable law or by the applicable payment processor, purchases, subscriptions, credits, generated media, and consumed usage are non-refundable. If a refund, chargeback, reversal, cancellation, or payment failure occurs, we may revoke the related subscription access, credits, generated benefits, or account entitlements.

Each billing period, your credit balance resets to your plan's monthly allowance. Unused credits do not roll over, expire at the end of the period, and have no cash value. Credits are non-transferable and may not be exchanged, sold, gifted, or redeemed for currency, goods, or services outside the Service. All fees and credits are non-refundable except as required by applicable law or by Apple. We reserve the right to change pricing, plan tiers, credit allowances, credit costs, and the structure of the credit system at any time, in our sole discretion, with or without notice.

Subscription upgrades take effect immediately; downgrades take effect at the start of the next billing period. You will retain access to your current plan's credit allowance until the end of the current billing period.

You may not purchase access, consume high-cost features such as image or video generation, and then abuse refund, chargeback, cancellation, or dispute processes to avoid payment. We may monitor purchase status, consumption, device integrity, account activity, and refund or chargeback patterns to detect abuse. Where permitted by law and platform rules, we may provide consumption information to Apple, Stripe, payment networks, or other payment processors in connection with refund, chargeback, or dispute requests; suspend or terminate accounts; revoke credits or access; deny future purchases or generations; and block devices or accounts associated with abusive, fraudulent, or evasive activity.

8. User Content

You retain ownership of content you submit through the Service ("User Content"). By submitting User Content, you grant us a worldwide, non-exclusive, royalty-free, sublicensable, and transferable license to host, store, process, reproduce, transmit, display, and otherwise use your User Content as needed to operate, provide, personalize, secure, support, improve, and promote the Service, to comply with law, and to enforce these Terms. This license allows us to work with service providers and to support business transactions described in our Privacy Policy; it does not transfer ownership of your User Content to us.

You represent and warrant that you have all rights necessary to grant this license and that your User Content does not violate any third party's rights or any applicable law.

9. AI-Generated Output

Output generated by AI models through the Service ("AI Output") is provided "as is." You acknowledge that AI Output may be inaccurate, incomplete, biased, or otherwise unreliable. You are solely responsible for evaluating and using AI Output. You must not rely on AI Output for medical, legal, financial, or other professional advice.

We make no claim of ownership over AI Output. However, we make no warranty that AI Output is unique to you or that identical or similar output has not been or will not be generated for other users.

10. Prohibited Conduct and Zero-Tolerance Content Policy

You agree not to:

  • Use the Service for any unlawful purpose or in violation of any applicable law or regulation
  • Attempt to circumvent usage limits, access controls, or security measures
  • Abuse refunds, chargebacks, subscriptions, credits, promotional offers, or Apple or Stripe purchase flows
  • Reverse engineer, decompile, or disassemble any part of the Service
  • Use the Service to generate content that is harmful, abusive, threatening, harassing, defamatory, sexually exploitative, or otherwise objectionable
  • Use the Service to generate child sexual abuse material (CSAM), non-consensual intimate imagery, or any content depicting the exploitation or abuse of minors
  • Use the Service to generate content that promotes violence, terrorism, or self-harm
  • Use automated means (bots, scrapers, etc.) to access the Service without our prior written consent
  • Resell, redistribute, or sublicense access to the Service
  • Interfere with or disrupt the integrity or performance of the Service
  • Impersonate any person or entity or misrepresent your affiliation
  • Use the Service to develop competing products or services

We maintain a strict zero-tolerance policy for the generation of illegal, exploitative, or abusive content. Violations will result in immediate and permanent termination of your account without notice, without refund, and may be reported to the appropriate law enforcement authorities. Third-party AI providers may also enforce their own content moderation policies independently.

11. Intellectual Property

The Service, including its original content (excluding User Content and AI Output), features, functionality, design, and branding, is and will remain the exclusive property of Human Interface Design LLC. The Service is protected by copyright, trademark, and other applicable laws. Our trademarks and trade dress may not be used without our prior written consent.

12. Third-Party Services

The Service integrates with and relies on third-party AI providers, media-generation providers, search and data providers, Apple platform services, analytics and diagnostics providers, hosting providers, payment infrastructure, and other services. Your use of these third-party services may be subject to their respective terms and policies. We are not responsible for the availability, accuracy, content, or practices of any third-party service.

Where commercially reasonable, we configure model providers not to train on your data, including through provider settings that disallow prompt training when available. Provider availability, routing, data handling, and model behavior may change over time.

13. Disclaimer of Warranties

The Service is provided "as is" and "as available" without warranties of any kind, whether express, implied, statutory, or otherwise, including but not limited to implied warranties of merchantability, fitness for a particular purpose, title, and non-infringement. We do not warrant that the Service will be uninterrupted, secure, error-free, or that any defects will be corrected.

We expressly disclaim all liability for any actions taken or not taken based on AI Output or any other content provided through the Service. Use of the Service is at your sole risk.

14. Limitation of Liability

To the maximum extent permitted by applicable law, in no event shall Human Interface Design LLC, its officers, directors, employees, agents, or affiliates be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of profits, data, use, goodwill, or other intangible losses, arising out of or in connection with your use of or inability to use the Service, regardless of the theory of liability (contract, tort, or otherwise), even if we have been advised of the possibility of such damages.

Our total aggregate liability for all claims arising out of or relating to these Terms or the Service shall not exceed the greater of (a) the amount you paid to us in the twelve (12) months preceding the claim, or (b) one hundred US dollars ($100).

15. Indemnification

You agree to indemnify, defend, and hold harmless Human Interface Design LLC, its officers, directors, employees, agents, and affiliates from and against any and all claims, damages, losses, liabilities, costs, and expenses (including reasonable attorneys' fees) arising out of or related to: (a) your use of the Service; (b) your User Content; (c) your violation of these Terms; or (d) your violation of any third party's rights.

16. Termination

We may terminate or suspend your access to the Service immediately, without prior notice or liability, for any reason whatsoever, including without limitation if you breach these Terms. Upon termination, your right to use the Service will immediately cease. All provisions of these Terms which by their nature should survive termination shall survive, including ownership provisions, warranty disclaimers, indemnification, and limitations of liability.

17. Modification of Terms

We reserve the right, at our sole discretion, to modify or replace these Terms at any time. Changes are effective immediately upon posting. It is your responsibility to review these Terms periodically. Your continued use of the Service after any changes constitutes acceptance of the revised Terms. If you do not agree to the new Terms, you must stop using the Service.

18. Governing Law and Dispute Resolution

These Terms shall be governed by and construed in accordance with the laws of the State of New York, without regard to its conflict of law provisions. Any dispute arising out of or relating to these Terms or the Service shall be resolved exclusively in the state or federal courts located in New York County, New York, and you consent to the personal jurisdiction of such courts.

19. Severability

If any provision of these Terms is held to be unenforceable or invalid, that provision will be enforced to the maximum extent possible, and the remaining provisions will remain in full force and effect.

20. Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and Human Interface Design LLC regarding the Service and supersede all prior agreements and understandings.

21. Contact Us

If you have any questions about these Terms, please contact us:

  • Human Interface Design LLC
  • 418 Broadway, Ste N, Albany, New York 12207
  • legal@hi.OS1.computer
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