RigMaster Legal & Safety

Terms of Usage

Application: RigMaster — Rigging Sling Tension Calculator & Lift Planning System • Package: com.vn.perfectworld.rigmaster • Effective Date: September 18, 2026
Critical Industrial Safety & Engineering Disclaimer

RIGMASTER IS AN ASSISTIVE COMPUTATIONAL PLANNING TOOL AND IS NOT A SUBSTITUTE FOR LICENSED PROFESSIONAL ENGINEERING JUDGMENT OR ON-SITE PHYSICAL RIGGING INSPECTIONS.

1. Acceptance of Terms

By downloading, installing, accessing, or using the RigMaster application ("App"), you agree to be bound by these Terms of Usage ("Terms"). If you do not agree to all terms and conditions set forth herein, do not install or use the App.

2. Intended Audience & Professional Qualifications

RigMaster is designed specifically for trained rigging specialists, lift directors, safety inspectors, crane operators, and heavy-lift engineers. By using the App, you acknowledge that you possess the requisite knowledge, training, and certifications required by your local jurisdiction to plan and execute rigging operations safely.

3. User Responsibilities & Data Input Accuracy

You are solely responsible for:

4. Intellectual Property & License Grant

Perfect World Studio grants you a revocable, non-exclusive, non-transferable, limited license to download, install, and use RigMaster on compatible mobile devices in accordance with these Terms.

5. Prohibited Conduct

You agree not to:

6. Disclaimer of Warranties ("AS IS")

THE APPLICATION IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, CALCULATION ACCURACY, TITLE, OR NON-INFRINGEMENT.

WE DO NOT WARRANT THAT THE APPLICATION WILL OPERATE UNINTERRUPTED, ERROR-FREE, OR THAT ITS COMPUTATIONAL ESTIMATIONS WILL PREDICT EVERY ENVIRONMENTAL OR MECHANICAL CONTINGENCY ENCOUNTERED IN THE FIELD.

7. Limitation of Liability & Indemnification

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL PERFECT WORLD STUDIO, ITS DIRECTORS, EMPLOYEES, OR AFFILIATES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES (INCLUDING LOSS OF LOAD, STRUCTURAL COLLAPSE, PROPERTY DAMAGE, BODILY INJURY, LOSS OF LIFE, LOST PROFITS, OR BUSINESS INTERRUPTION) ARISING OUT OF THE USE OR INABILITY TO USE THIS APPLICATION, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

You agree to indemnify, defend, and hold harmless Perfect World Studio from and against any claims, liabilities, damages, losses, and expenses (including legal fees) arising from your rigging operations, lift plan execution, or violation of these Terms.

8. Modifications to Terms

We reserve the right to revise or update these Terms at any time. Continued use of the App following any changes constitutes your binding acceptance of the revised Terms.

9. Governing Law & Dispute Resolution

These Terms shall be governed by and construed in accordance with the laws of Vietnam and international software commercial principles, without regard to conflict of law rules. Any dispute arising out of or in connection with these Terms shall be subject to the exclusive jurisdiction of the competent courts in Vietnam.

10. Contact Information

For questions or formal inquiries regarding these Terms of Usage, please reach out to: