SitLess App (Desktop)
Terms of Use
Welcome to SitLess App (desktop version)!
These Terms apply to all users worldwide of the SitLess app (desktop version). Applicable laws may differ across jurisdictions, but we will always comply with the core privacy and data protection principles relevant to our business.
Please carefully read and understand these Terms of Use (the "Terms") before using SitLess (the "App"). These Terms are a legal agreement between you (the "User" or "you") and the developer of SitLess, Zhang Tinghui ("we", "us", or the "Developer"), regarding the services provided by the Developer through the App.
Special reminder: Before using the service, please carefully read all provisions of these Terms, especially provisions that exempt or limit the Developer's liability and provisions that restrict user rights. If you are a minor, please read these Terms with your legal guardian.
If you do not agree with any part of these Terms, please do not use the App or related services. Once you use the App in any form, you are deemed to have read, understood, and agreed to be bound by all provisions of these Terms. If you violate any provision of these Terms, the Developer may suspend or terminate your eligibility to use the service at any time and reserves the right to pursue legal liability.
Effective date: May 10, 2026
Last Updated: May 18, 2026
1. Service Content
App overview
SitLess is a health and activity app designed to provide sedentary reminders and simple, easy-to-follow stretching suggestions. It helps users improve a sedentary lifestyle and use small fragments of time for physical activity.
Service scope
The App provides the following services:
1. Sedentary break reminders
2. Random recommendations for simple break and stretching movements
3. Exercise movement suggestions in text, image, voice, video, and other formats
4. Records of user activity habits and data, all stored only on your local device
Service changes and interruption
We reserve the right to modify, suspend, or terminate part or all of the services at any time. In the event of material changes, we will notify users through in-app announcements or other methods.
2. User Rights and Obligations
User rights
1. You have the right to use the services provided by the App in accordance with these Terms.
2. You have the right to stop using the App at any time and may terminate the service by moving the App to the Trash.
User obligations
1. The App does not require account registration, and all your usage data is stored exclusively on your local device. Please properly secure your device and data.
2. You must ensure that your use of the App complies with all applicable local, national, and international laws, regulations, and these Terms.
You agree not to use the App or its services for any unlawful purposes, nor to engage in any conduct that violates public order, infringes upon the rights of others, or disrupts the integrity of the software system.
3. You must not engage in any unauthorized commercial or rights-infringing conduct, including but not limited to:
- Removing any copyright notices or content from the App or its copies;
- Using the App or services to publish, transmit, disseminate, or store content that endangers national security, national unity, or social stability, or content that is defamatory, pornographic, violent, disturbing to others, or otherwise violates laws, regulations, or policies;
- Copying, modifying, linking to, reposting, compiling, publishing, mirroring, or creating derivative products or works related to the App without written consent;
- Publishing, transmitting, disseminating, or storing content that infringes others' intellectual property rights, trade secrets, or other lawful rights.
4. You must not interfere with or disrupt the normal operation of the App in any way, and must not engage in any conduct that endangers computer network security, including but not limited to:
- Reverse engineering, disassembling, or decompiling the App;
- Using unauthorized data or accessing unauthorized server accounts;
- Accessing public computer networks or other computer systems without permission and deleting, modifying, or adding stored information;
- Attempting without permission to probe, scan, or test weaknesses of the software system or network, or otherwise damaging network security;
- Attempting to interfere with or disrupt the normal operation of the software system or website, intentionally spreading malicious programs or viruses, or otherwise disrupting normal network information services; forging TCP/IP packet names or parts of names.
3. Privacy Protection
Privacy Policy
We attach great importance to the protection of user privacy. Your personal information will be processed in accordance with the SitLess App Privacy Policy. Please carefully read the Privacy Policy in the App before using the App.
Data collection and use
All usage data generated by the App, such as work duration, check-in records, exercise logs, and custom break content, is stored only on your local device and is not uploaded to our servers. For details on personal data processing, please review the Privacy Policy in the App.
4. Disclaimers
Activity risks
1. Activity risks and personal responsibility
The sedentary reminders, stretching movements, and movement demo videos provided by the App are for daily activity reference only and do not constitute professional medical advice or an exercise prescription. You should independently decide whether to follow an exercise, how to adjust movement range, and when to stop based on your physical condition, flexibility, medical history, and current feelings.
All physical activity carries inherent risks, such as muscle strain, joint sprain, and falls. You confirm that before starting any movement provided by the App, you have fully understood your health condition and are fully responsible for your own safety and the consequences of your actions. The App and the Developer are not legally liable for any physical injury, worsening of illness, or other accident caused by your failure to reasonably assess your condition, forced imitation of movements, or ignoring signals of physical discomfort.
2. Limitations of AI-generated videos and the user's responsibility to practice caution
The movement demonstration videos within the App are generated by artificial intelligence (AI) and are not live-action professional coaching videos. They may occasionally contain minor visual inaccuracies, angle deviations, or lack certain personalized safety cues.
Before following any routine, you should first read the text-based instructions and safety precautions, and maintain reasonable judgment and proper form. If you have any doubts regarding the correctness of a movement, we recommend pausing the exercise and consulting authoritative fitness guidance. Stop immediately if you experience joint pain, sharp muscle discomfort, dizziness, or breathing difficulties. The App and the Developer are not liable for injuries resulting from inaccuracies in AI-generated visual content or a user's failure to exercise personal caution.
3. Medical advice required for users with specific health conditions
If you currently have or previously had heart disease, high blood pressure, cervical or lumbar disc herniation, joint injury, unhealed fracture, osteoporosis, pregnancy, postpartum recovery, acute illness, or any condition where a doctor has advised against stretching or physical activity, you must proactively consult a professional doctor or rehabilitation therapist before using the App to obtain activity permission and specific advice for your personal situation.
If you use the App without seeking medical advice, or against a doctor's advice, the App and the Developer are not legally liable for any resulting health deterioration, accidental injury, or other adverse consequences. If you already have a relevant illness or injury and still choose to use the App, you are deemed to have independently completed a medical assessment and voluntarily assumed all risks.
Service stability
Users understand that when using services involving internet services, the service may be affected by unstable factors at various stages. Therefore, there are risks of service interruption or failure to meet user requirements caused by force majeure, computer viruses or hacker attacks, system instability, user location, user device shutdown, or other technical, internet, communication line, or related reasons.
We will make reasonable efforts to ensure stable operation of the App, but we are not liable for service interruption or data loss caused by force majeure, such as network failure or system maintenance.
Third-party content
The App may contain services or content provided by third parties. We are not liable for the quality, accuracy, or legality of such content.
Security issues
While SitLess operates locally on your device, your system environment may still face general security risks inherent to internet-connected devices (such as malware, trojans, or system vulnerabilities introduced by other software), which may affect the performance or data security of the App. The Developer is not liable for security compromises resulting from the user's personal system environment or negligent device management.
Please always practice standard cyber hygiene. Since the App is entirely local and does not manage financial accounts or credentials, you should never disclose sensitive personal data, financial accounts, or passwords to any unverified third party while seeking support. Any losses arising from such disclosure are entirely your own responsibility.
Laws and regulations
Use of the App must comply with relevant national laws and policies, protect national interests, protect national security, and comply with these Terms. Users bear full responsibility for all liabilities arising from unlawful use or violation of these Terms, including but not limited to publication or transmission of content.
5. Intellectual Property
Ownership of the App
The App and services are protected by international copyright treaties and other intellectual property laws. Ownership and intellectual property rights in the App belong to the Developer, Zhang Tinghui. Without authorization, you may not copy, modify, distribute, or use the App for any commercial purpose.
User content
Data generated during your use of the App, such as exercise records, belongs to you, but we may use anonymized data to improve the service.
6. Modification and Termination
Modification of Terms
We may modify these Terms according to laws, regulations, or business needs. The modified Terms will be published in the App and take effect from the date of publication. If you continue to use the App, you are deemed to accept the modified Terms.
Termination
Users must use the App and its services in a proper and lawful manner. If you violate any provision of these Terms, engage in unlawful activities, or attempt to compromise the software system, the Developer reserves the right to terminate or restrict your access to the services immediately. You may also terminate these Terms at any time simply by uninstalling the App and moving it to the Trash.
7. Governing Law and Dispute Resolution
Governing law
The formation, performance, and interpretation of these Terms are governed by the laws of the People's Republic of China. However, for users in the European Union, the United States, or other regions, this does not affect consumer protection rights they may have under local law.
Dispute resolution
Any dispute arising from these Terms should first be resolved through friendly consultation. If consultation fails, either party may submit the dispute to the competent court in the Developer’s place of residence. This clause does not prejudice any mandatory consumer protection remedies you may be entitled to under the laws of your local jurisdiction.
8. Other Terms
Severability
If any provision of these Terms is held invalid or unenforceable, the validity of the remaining provisions is not affected.
Language versions
These Terms were written in Simplified Chinese and translated into other languages. In case of any inconsistency, the Simplified Chinese version shall prevail.
Contact
If you have any questions about these Terms or the App, please contact us:
Email: mobi.morefun@foxmail.com
Thank you for using SitLess!
Before using the App, please confirm again that you have fully read, understood, and agreed to all content of these Terms. We wish you a pleasant experience and a healthy life.