Piano Sight Reading: Notes – Terms of Service / 用户协议

Terms of Service (English)

I. Acceptance of Terms

These Terms of Service (the "Terms") govern your use of the mobile application "Piano Sight Reading: Notes" (also known as 钢琴视奏练习; the "App"), provided by Lumen Labs Studio ("we", "our", or "us"). By downloading, installing, or using the App, you agree to be bound by these Terms. If you do not agree to these Terms, please do not use the App. If you are under 18 years of age, please read these Terms with your parent or legal guardian and obtain their consent before using the App.

II. Scope and Definitions

These Terms constitute the agreement between you and Lumen Labs Studio regarding your download, installation, and use of the App and the related services we provide. By using the App, you accept the rights and obligations set out in these Terms.

"User" or "you" means any person who accesses or uses the App. "App" means the Piano Sight Reading: Notes (钢琴视奏练习) client application that we own and operate. "Terms" includes these Terms of Service and any related policies we publish from time to time, including our Privacy Policy, which form an integral part of this agreement.

III. Description of the Service

The App is designed to help users practice and improve their piano sight reading skills. It may provide features such as note-reading exercises, practice sessions, progress indication, and other tools intended to support music learning. The App is provided for educational and training purposes only and is not intended to replace professional music instruction.

IV. License and Restrictions

We grant you a personal, limited, non-exclusive, non-transferable, revocable license to install and use the App solely for your own non-commercial purposes, in accordance with these Terms and any applicable app store rules.

You agree that you will not:

• Copy, modify, adapt, translate, or create derivative works of the App;
• Reverse engineer, decompile, disassemble, or otherwise attempt to derive the source code of the App, except to the extent expressly permitted by applicable law;
• Rent, lease, loan, sell, distribute, or sublicense the App to any third party;
• Use the App for any commercial purpose without our prior written consent;
• Remove, alter, or obscure any copyright, trademark, or other proprietary notices in the App;
• Use the App in any manner that could damage, disable, overburden, or impair our servers or networks, or interfere with any other party's use of the App.

V. User Conduct

You agree that you will comply with all applicable laws and regulations when using the App, and that you will not:

• Use the App for any unlawful, fraudulent, or harmful purpose;
• Attempt to gain unauthorized access to the App, other users' accounts, or any related systems or networks;
• Use any automated means (such as bots, scripts, or scrapers) to access or interact with the App in a way that is not expressly permitted;
• Upload, transmit, or distribute any viruses, malware, or other harmful code through the App;
• Engage in any conduct that could interfere with or disrupt the normal operation of the App.

VI. Advertising and Third-Party Content

The App may display third-party advertisements and may contain links to third-party websites or services. We do not control and are not responsible for the content, privacy policies, or practices of any third-party advertisements, websites, or services.

Your interactions with any third-party advertisements, websites, or services are solely between you and the third party. We are not liable for any loss or damage arising from such interactions.

VII. Progress, Level, and Achievements; No Guarantee of Data Retention

The App does not include an account system. All progress data, including but not limited to practice progress, level, achievements, and any other in-app data, is stored locally on your device. If you uninstall the App or otherwise remove or lose such data through your own actions (for example, clearing app data or resetting your device), we do not guarantee that any progress, level, or achievements can be recovered or restored. Data loss resulting from your actions is not our responsibility.

VIII. No Medical or Professional Advice

The App is intended solely for educational and training purposes in the context of music learning. It does not provide medical, therapeutic, or other professional advice. You should not rely on the App as a substitute for professional instruction or guidance where such advice is needed.

IX. Disclaimer of Warranties

THE APP IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS, WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED. TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, WE DISCLAIM ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.

We do not warrant that the App will be error-free, uninterrupted, secure, or free of viruses or other harmful components, nor do we make any warranty regarding the accuracy, reliability, or completeness of any information or results obtained through the App.

X. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL LUMEN LABS OR ITS AFFILIATES, DIRECTORS, EMPLOYEES, OR LICENSORS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS OR REVENUES, WHETHER INCURRED DIRECTLY OR INDIRECTLY, OR ANY LOSS OF DATA, USE, OR OTHER INTANGIBLE LOSSES, RESULTING FROM:

• Your access to or use of, or inability to access or use, the App;
• Any conduct or content of any third party on or related to the App;
• Any unauthorized access, use, or alteration of your information;
• Any other matter relating to the App.

In no event shall our total liability for all claims relating to the App exceed the amount you have actually paid (if any) for the use of the App during the twelve (12) months immediately preceding the event giving rise to the claim. If you use the App free of charge, our total liability shall be zero, to the maximum extent permitted by law.

XI. Termination

We reserve the right, at our sole discretion, to suspend or terminate your access to the App at any time and for any reason, including if we reasonably believe that you have violated these Terms or engaged in misuse of the App.

You may stop using the App at any time by uninstalling it from your device. Upon termination, the rights granted to you under these Terms will immediately cease.

XII. Changes to the App and to These Terms

We may, from time to time, modify, update, or discontinue the App (or any part of it) with or without notice. We may also update these Terms from time to time. When we do, we will revise the "Last updated" date at the top of this page.

Your continued use of the App after any changes to the App or to these Terms take effect will constitute your acceptance of such changes. If you do not agree to the modified Terms, you should stop using the App.

XIII. Children and Minors

The App is not specifically designed for children under 13 but may be used by them with the knowledge and consent of a parent or legal guardian. We do not knowingly collect personally identifiable information from children under 13. If you are a parent or guardian and have concerns about your child's use of the App, please contact us.

XIV. Governing Law and Dispute Resolution

These Terms shall be governed by and construed in accordance with the laws of the jurisdiction in which Lumen Labs Studio is primarily established, without regard to its conflict of law principles, unless the laws of your country of residence require otherwise.

Any dispute, controversy, or claim arising out of or relating to these Terms or the App shall, where possible, first be resolved through friendly negotiations between you and us. If such negotiations do not resolve the dispute, the dispute shall be submitted to the competent court in the place where Lumen Labs Studio is primarily established, unless mandatory local law provides otherwise.

XV. Other

The section headings in these Terms are for convenience only and do not affect the meaning or interpretation of any provision.

XVI. Contact Information

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

• Developer: Lumen Labs Studio
• Contact: support@lumen-labs.app