Block Puzzle - Terms of Service

Please read these Terms of Service ("Terms") carefully before using Block Puzzle — Wood & Crystal (the "App"), developed by KENSTACK COMPANY LIMITED ("we", "us", or "our"). By downloading, installing, or using the App, you agree to be bound by these Terms. If you do not agree, do not use the App.

1. Acceptance of Terms and Age Requirement

By using the App, you confirm that you have read, understood, and agreed to these Terms and our Privacy Policy, which is incorporated into these Terms by reference.

Age Requirement: You must be at least 13 years of age to use this App (or the applicable age of digital consent in your jurisdiction, e.g., 16 in certain EU/EEA countries). By using the App, you represent and warrant that you meet this requirement. If you do not meet this requirement, you must not access or use the App. We do not knowingly permit users under 13 to use the App.

2. License to Use the App

We grant you a personal, non-exclusive, non-transferable, revocable, limited license to use the App for your personal, non-commercial entertainment purposes only. The App is licensed to you, not sold.

You agree not to:

• Reverse engineer, decompile, or disassemble the App, except to the extent expressly permitted by applicable law (e.g., as required by EU Directive 2009/24/EC for interoperability purposes).
• Use cheats, automated scripts, bots, exploits, or unauthorized third-party tools that interact with or manipulate the App.
• Copy, modify, adapt, translate, create derivative works based upon, distribute, publicly perform, publicly display, or otherwise exploit the App or its content, in whole or in part.
• Sublicense, sell, resell, transfer, assign, or commercialize the App or any portion thereof without our prior written consent.

3. Intellectual Property

All content in the App — including but not limited to source code, object code, graphics, animations, sound effects, background music, game mechanics, user interface design, and visual assets — is the exclusive property of KENSTACK COMPANY LIMITED and is protected by applicable intellectual property laws of Vietnam and international treaties.

No rights are granted to you other than the limited license described in Section 2.

4. In-Game Currency and Virtual Items

The App allows you to accumulate virtual in-game items ("Coins" or "Gold") through gameplay. These virtual items:

• Have no real-world monetary value and cannot be exchanged for real money, goods, or services outside the App.
• Are stored locally on your device and will be permanently and irrecoverably lost if you uninstall the App or clear its data.
• Are not transferable between devices, accounts, or users.
• Are a revocable license — we reserve the right to modify, limit, reset, or remove virtual items at any time with or without notice, without liability to you.

5. In-App Purchases (Future)

The current version of the App may offer optional in-app purchases (e.g., Gold packages). If applicable:

• All purchases are final and non-refundable except as required by applicable law or Google Play's refund policies.
• Purchases are processed by Google Play Billing and are subject to Google's Terms of Service.
• We do not store your payment information.

6. Privacy

We do not collect personal data from users of this App. Please refer to our Privacy Policy for complete details on data handling, third-party components, and our age restriction practices.

7. Disclaimers of Warranties

THE APP IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF ANY KIND.

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, KENSTACK COMPANY LIMITED EXPRESSLY DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING BUT NOT LIMITED TO:

• IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
• WARRANTIES THAT THE APP WILL BE UNINTERRUPTED, ERROR-FREE, SECURE, OR FREE OF VIRUSES OR HARMFUL COMPONENTS.
• WARRANTIES REGARDING THE ACCURACY OR COMPLETENESS OF ANY CONTENT IN THE APP.

8. Limitation of Liability

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL KENSTACK COMPANY LIMITED, ITS OFFICERS, DIRECTORS, EMPLOYEES, SHAREHOLDERS, OR AGENTS BE LIABLE FOR ANY:

• INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES;
• LOSS OF PROFITS, REVENUE, DATA, GOODWILL, OR OTHER INTANGIBLE LOSSES;

ARISING OUT OF OR RELATED TO YOUR ACCESS TO OR USE OF (OR INABILITY TO ACCESS OR USE) THE APP, INCLUDING LOSS OF LOCAL GAME DATA, EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

AGGREGATE CAP: IN NO EVENT SHALL OUR TOTAL CUMULATIVE LIABILITY TO YOU FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THESE TERMS OR THE APP EXCEED THE GREATER OF: (A) THE TOTAL AMOUNT YOU ACTUALLY PAID TO US IN THE TWELVE (12) MONTHS IMMEDIATELY PRECEDING THE CLAIM, OR (B) USD $1.00 (ONE UNITED STATES DOLLAR).

YOUR SOLE AND EXCLUSIVE REMEDY FOR DISSATISFACTION WITH THE APP IS TO STOP USING IT AND UNINSTALL IT FROM YOUR DEVICE.

Some jurisdictions do not allow the exclusion of certain warranties or the limitation of liability for certain types of damages. In such jurisdictions, our liability will be limited to the maximum extent permitted by law.

9. Governing Law and Dispute Resolution

These Terms are governed by and construed in accordance with the laws of the Socialist Republic of Vietnam, without regard to its conflict of law provisions.

Any dispute, controversy, or claim arising out of or relating to these Terms or the App shall be submitted to the exclusive jurisdiction of the competent courts of Da Nang City, Vietnam.

Nothing in this section prevents either party from seeking urgent injunctive or other equitable relief in any court of competent jurisdiction.

10. Changes to Terms

We may update these Terms at any time. When we make material changes, we will update the "Last Updated" date at the top of this document. Your continued use of the App after any such update constitutes your acceptance of the revised Terms.

We encourage you to review these Terms periodically.

11. Severability

If any provision of these Terms is found by a court of competent jurisdiction to be invalid, illegal, or unenforceable, that provision shall be modified to the minimum extent necessary to make it valid and enforceable. The remaining provisions shall continue in full force and effect.

12. Entire Agreement

These Terms, together with the Privacy Policy, constitute the entire agreement between you and KENSTACK COMPANY LIMITED with respect to the App and supersede all prior agreements, representations, and understandings of any kind.

13. Contact

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

KENSTACK COMPANY LIMITED
Email: ken@kenstack.io
Website: https://kenstack.io/
Address: 85/25 Le Van Huu, My An Ward, Da Nang 550000, Vietnam