Terms of Sale and Use

Last Updated: May 14, 2026

These Terms of Sale and Use ("Terms") govern your access to and use of the websites, online storefronts, software, firmware, applications, hardware products, accessories, content, support services, and related services branded Paper_Tracker (collectively, the "Services").

These Terms form a binding agreement between you and PAPER TRACKER TECHNOLOGY LIMITED, operating under the PaperTracker brand ("PaperTracker", "we", "our", or "us"). By accessing or using the Services, creating an account, placing an order, clicking to accept, downloading software, activating a device, or otherwise using any part of the Services, you agree to be bound by these Terms, our Privacy Policy, our Return and Refund Policy, our Limited Warranty Policy, and any additional terms presented to you for specific products, software, beta features, or optional programs.

These Terms are provided in English and Chinese for convenience. To the maximum extent permitted by applicable law, the English version prevails in the event of any inconsistency.

1. Eligibility and Accounts

1. You represent and warrant that you have the legal capacity to enter into these Terms. If you use the Services on behalf of a company or other legal entity, you represent and warrant that you have authority to bind that entity.
2. You must provide accurate, current, and complete account, order, shipping, and contact information and keep such information up to date.
3. You are responsible for maintaining the confidentiality of your account credentials and for all activities that occur under your account. You must promptly notify us of any unauthorized access, misuse, or security incident involving your account.
4. We may refuse, suspend, or terminate accounts or orders to the extent permitted by law where we reasonably believe there is fraud, abuse, sanction risk, export-control risk, payment risk, or a violation of these Terms.

2. Products, Availability, Compatibility, and Pricing

1. Product descriptions, images, specifications, availability, compatibility information, estimated shipping dates, and pricing are provided for general information and may change from time to time.
2. We make commercially reasonable efforts to describe our products accurately, but minor differences in appearance, packaging, software interface, or specifications may occur.
3. Compatibility with third-party headsets, operating systems, drivers, platforms, games, engines, avatars, or software is not guaranteed on a permanent basis and may change due to updates, deprecations, policy changes, or third-party actions beyond our control.
4. We reserve the right to correct errors, inaccuracies, or omissions in pricing, product descriptions, availability, shipping estimates, or promotional materials, and to update or cancel affected orders where permitted by law.

3. Orders, Payment, and Fulfillment

1. Your order is an offer to purchase. We may accept, reject, limit, or cancel any order to the extent permitted by law, including in cases of suspected fraud, abuse, resale activity, pricing error, stock error, sanctions or export-compliance concerns, or payment verification issues.
2. Prices displayed on the Services may not include taxes, duties, customs charges, import fees, currency conversion charges, or payment-processing charges unless expressly stated otherwise. You are responsible for such amounts where applicable.
3. You are responsible for providing a complete and deliverable shipping address and any information required for customs clearance, import processing, or local delivery.
4. Risk of loss and title transfer at the time permitted by applicable law and specified in your order confirmation, shipping terms, or mandatory local law.

4. Cancellations, Returns, and Digital Content

1. As a voluntary store policy, and except where mandatory applicable consumer law provides otherwise, standard product orders may be cancelled within one (1) hour after the order is placed, provided the order has not entered fulfillment, manufacturing, cutting, calibration, packaging, or shipment.
2. Customized, made-to-order, or clearly personalized products, including custom lenses and other products manufactured to your prescription, measurements, specifications, or individualized requirements ("Custom Products"), may only be changed or cancelled within one (1) hour after the order is placed, unless a longer period is required by mandatory law. Except as required by law, Custom Products are non-returnable for change-of-mind reasons once production begins.
3. For digital content, software licenses, firmware, feature unlocks, or electronically delivered items, you expressly request immediate performance when you click to download, activate, stream, provision, or otherwise begin using such digital content. Where permitted by applicable law, you acknowledge that your statutory cooling-off or withdrawal right may be reduced or lost once performance begins.
4. Nothing in these Terms limits any non-waivable statutory return, withdrawal, rejection, repair, replacement, or refund rights that may apply to you under mandatory consumer law.
5. Additional conditions for returns, exchanges, damaged goods, non-delivery claims, and refund processing are set out in our Return and Refund Policy.

5. Limited Commercial Warranty

1. Subject to the exclusions and procedures in our Limited Warranty Policy, we provide a one (1) year limited commercial warranty from the date of delivery that the hardware product will substantially conform to its published documentation under normal and intended use.
2. This limited commercial warranty is in addition to, and does not replace, any non-excludable statutory rights or legal guarantees that apply under mandatory law.
3. The limited commercial warranty does not cover, to the extent permitted by law, normal wear and tear, cosmetic damage, consumables, misuse, abuse, accidents, drops, liquid damage, improper installation, improper calibration, unauthorized repairs or modifications, use with unsupported hardware or software, failure to follow documentation, use outside intended operating conditions, prescription data supplied incorrectly by the customer, or issues caused by third-party platforms, software, or services.

6. Software License

1. Subject to these Terms, PaperTracker grants you a limited, revocable, non-exclusive, non-transferable, non-sublicensable license to install and use the software and firmware provided with the product solely for your personal or internal business use with authorized PaperTracker products.
2. Except to the extent such restriction is prohibited by applicable law, you may not, and may not permit any third party to:
• copy, modify, adapt, translate, distribute, sell, rent, lease, sublicense, host, or commercially exploit the software except as expressly authorized;
• reverse engineer, decompile, disassemble, decode, or attempt to derive source code, model weights, algorithms, file formats, or non-public interfaces;
• circumvent or interfere with security, licensing, region-locking, anti-abuse, telemetry, or access-control mechanisms;
• use the Services to build a competing product, train a competing system from protected software components, or perform unauthorized scraping, extraction, or automated access; or
• remove or alter proprietary notices.
3. We may provide updates, patches, firmware changes, compatibility fixes, or security improvements. Some updates may be required for continued functionality, compliance, or support.

7. Acceptable Use; No High-Risk, Medical, or Identification Use

1. You may not use the Products or Services for any unlawful, infringing, deceptive, harassing, harmful, security-testing, surveillance, or unauthorized data-collection purpose.
2. Unless we expressly state otherwise in writing, the Products and Services are not designed, marketed, or certified for:
• medical diagnosis, treatment, rehabilitation, or clinical decision-making;
• safety-critical systems, emergency response, aviation, driving, industrial control, life support, or similar high-risk uses; or
• identity verification, access control, law enforcement, public surveillance, or automated decisions producing legal or similarly significant effects on individuals.
3. You are solely responsible for ensuring that your use of the Products and Services complies with all applicable laws, platform rules, and third-party rights.

8. Face and Eye Data; Local Processing by Default

1. In the ordinary default use of the Products and Services, face-tracking data, eye-tracking data, gaze outputs, expression outputs, calibration data, and related inputs and outputs ("Face and Eye Data") are processed locally on your device.
2. Unless you separately and explicitly opt in to an optional Data Contribution Program, or unless you knowingly submit support materials containing such data, we do not upload Face and Eye Data to our servers, we do not store Face and Eye Data on our servers, and we do not perform server-side analysis of Face and Eye Data.
3. Local on-device processing of Face and Eye Data may be necessary for core product functionality, such as tracking, calibration, animation output, gaze estimation, blinking, or expression mapping.

9. Optional Data Contribution Program

1. We may from time to time offer an optional Data Contribution Program for dataset construction, model training, testing, evaluation, debugging, robustness analysis, fairness analysis, product improvement, and related research and development purposes.
2. Participation in the Data Contribution Program is entirely voluntary and requires a separate, explicit, and clearly presented consent flow. Acceptance of these Terms alone does not enroll you in that program.
3. If you do not join the Data Contribution Program, your refusal will not disable the core local tracking functionality of the product, except where a particular feature expressly depends on cloud processing and is separately identified as such.
4. If you choose to join the Data Contribution Program, the separate consent notice will describe the categories of data involved, the purposes of processing, the retention approach, the withdrawal method, and any region-specific restrictions.
5. You may withdraw your participation as described in the separate consent notice or Privacy Policy. Withdrawal will stop new collection under that consent going forward, but will not affect processing already carried out before withdrawal. To the extent permitted by applicable law, withdrawal will also not require us to reverse or unwind information that has already been irreversibly de-identified, aggregated, or incorporated into trained models, evaluation artifacts, or security and integrity records.
6. The Data Contribution Program may be unavailable, restricted, or discontinued in certain countries, states, provinces, territories, or for certain users, devices, age groups, software versions, or business reasons.

10. Privacy, Support Materials, and Feedback

1. Our processing of personal information is described in our Privacy Policy.
2. If you voluntarily send us logs, recordings, screenshots, videos, bug reports, diagnostic packages, or other support materials, you represent and warrant that you have the right to provide such materials and that doing so does not violate any law or third-party rights.
3. We may use support materials for troubleshooting, support, product quality, reliability, security, abuse prevention, and warranty evaluation.
4. If you send us suggestions, ideas, feedback, improvement requests, bug reports, test results, or other non-confidential submissions regarding the Services ("Feedback"), you grant us a worldwide, perpetual, irrevocable, non-exclusive, royalty-free license to use, reproduce, modify, publish, distribute, and otherwise exploit that Feedback for product, service, and business purposes without compensation to you. This section does not override any separate explicit consent terms applicable to biometric or other regulated data.

11. Intellectual Property

1. The Products and Services, including software, firmware, models, algorithms, documentation, interfaces, trade names, logos, graphics, product designs, and other materials, are owned by us or our licensors and are protected by applicable intellectual-property laws.
2. Except for the limited license expressly granted in these Terms, no right, title, or interest in or to any intellectual property is transferred to you.

12. Third-Party Services and Platforms

The Services may interoperate with or link to third-party platforms, storefronts, payment processors, shipping providers, app stores, headsets, operating systems, analytics tools, or other services. We do not control third-party services and are not responsible for their acts, omissions, availability, policies, or terms. Your use of third-party services is governed by the applicable third-party terms and policies.

13. Disclaimers

1. To the maximum extent permitted by law, and except as expressly set out in our Limited Warranty Policy or otherwise required by mandatory law, the Services, products, software, content, outputs, and support are provided "as is" and "as available."
2. We disclaim all implied warranties and conditions, including implied warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, uninterrupted availability, error-free operation, and compatibility.
3. We do not warrant that the Products or Services will meet every user's expectations, remain continuously available, or function without interruption, delay, drift, or incompatibility.

14. Limitation of Liability

1. To the maximum extent permitted by law, Paper_Tracker and its affiliates, officers, directors, employees, contractors, suppliers, and licensors will not be liable for any indirect, incidental, consequential, special, exemplary, or punitive damages, or for any loss of profits, revenue, goodwill, data, use, business opportunity, or procurement of substitute goods or services.
2. To the maximum extent permitted by law, our aggregate liability arising out of or relating to the Products, Services, or these Terms will not exceed the greater of:
• the total amount you paid to us for the specific product or service giving rise to the claim during the twelve (12) months before the event giving rise to the claim; or
• US$100.
3. Nothing in these Terms excludes or limits liability to the extent such exclusion or limitation is prohibited by applicable law.

15. Indemnity

To the maximum extent permitted by law, you agree to indemnify and hold harmless Paper_Tracker and its affiliates, officers, directors, employees, contractors, suppliers, and licensors from and against third-party claims, losses, liabilities, damages, costs, and expenses (including reasonable legal fees) arising out of or related to your misuse of the Products or Services, your violation of these Terms, your violation of applicable law or third-party rights, or your upload, submission, or processing of data or content you were not authorized to provide.

16. Suspension and Termination

We may suspend or terminate your access to all or part of the Services if we reasonably believe you have violated these Terms, created legal or security risk, engaged in fraud or abuse, or where suspension is required for legal, security, or operational reasons.

17. Governing Law and Disputes

1. These Terms are governed by the laws of the Hong Kong Special Administrative Region, without regard to conflict-of-laws principles.
2. The courts of Hong Kong shall have exclusive jurisdiction over any dispute arising out of or relating to these Terms, the Products, or the Services.
3. Nothing in this Section limits any mandatory consumer protections, mandatory forum rights, or non-waivable rights that may apply to you under the law of your country, state, or place of residence.

18. Changes to These Terms

We may update these Terms from time to time. The updated version will become effective when posted, unless a later date is stated. Your continued use of the Services after the effective date of the updated Terms constitutes your acceptance of the revised Terms.

19. Contact Information

Paper_Tracker Legal Entity: PAPER TRACKER TECHNOLOGY LIMITED Company 

Email: support@papertracker.top