Terms of Use — Zen Ink Sudoku
Last updated: July 29, 2026
Operator: Chen Ting (doing business as HanWorks) (“we”, “us”, “our”)
App: Zen Ink Sudoku (“Sudoku”, “the App”)
Contact: support@hanworks.online
Terms URL: https://www.hanworks.online/sudoku/terms
Privacy Policy: https://www.hanworks.online/sudoku/privacy
Chinese version: https://www.hanworks.online/sudoku/terms-zh
These Terms of Use (“Terms”) govern your access to and use of the App. By downloading or using the App, you agree to these Terms. If you do not agree, do not use the App.
If you purchase a subscription or in-app product through Apple, Apple’s Licensed Application End User License Agreement (Standard EULA) may also apply:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Where these Terms and Apple’s Standard EULA both apply, Apple’s EULA controls for Apple-required license terms; these Terms cover our additional product terms.
1. The Service
Zen Ink Sudoku is a digital sudoku puzzle experience, including optional premium unlock features. Features may change over time.
2. Eligibility
You must be able to form a binding contract under applicable law. If you are under the age of majority where you live, you may use the App only with a parent or guardian’s consent and supervision.
3. License
Subject to these Terms, we grant you a personal, non-exclusive, non-transferable, revocable license to use the App on Apple devices you own or control, as permitted by the App Store Rules.
You may not:
- Copy, modify, reverse engineer, or create derivative works of the App except as allowed by law
- Rent, lease, sell, sublicense, or redistribute the App
- Bypass trial, payment, or access controls
- Use the App for unlawful, harmful, or abusive purposes
4. Free Trial and Purchases
4.1 Free trial
The App may offer a limited free trial (for example, a number of active days). Trial terms shown in the App control. When the trial ends, continued premium access may require a purchase.
4.2 Lifetime unlock
The App may offer a one-time non-consumable purchase (lifetime unlock) billed through your Apple ID. Price is shown in the App Store / purchase sheet at checkout.
4.3 Apple billing
All payments, taxes, refunds, and purchase management are handled by Apple. To request a refund, use Apple’s process (for example, reportaproblem.apple.com). We cannot directly issue App Store refunds.
4.4 Restore
You may restore eligible purchases on devices signed in with the same Apple ID using the App’s Restore Purchases control.
5. No Account
The App does not require a developer-operated user account. Progress is stored on device. Uninstalling the App may erase local progress. Purchases remain associated with your Apple ID according to Apple’s systems.
6. Intellectual Property
The App, including design, text, graphics, audio, and software, is owned by us or our licensors and protected by intellectual property laws. These Terms do not transfer ownership to you.
7. Disclaimer
THE APP IS PROVIDED “AS IS” AND “AS AVAILABLE.” TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. We do not warrant that the App will be uninterrupted, error-free, or free of harmful components.
8. Limitation of Liability
TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE ARE NOT LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF DATA, PROFITS, OR GOODWILL, ARISING FROM YOUR USE OF THE APP. OUR TOTAL LIABILITY FOR ANY CLAIM RELATING TO THE APP WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID US FOR THE APP FEATURE AT ISSUE IN THE 12 MONTHS BEFORE THE CLAIM, OR (B) USD $10.
Some jurisdictions do not allow certain limitations; in those places, our liability is limited to the fullest extent permitted.
9. Indemnity
You agree to defend and indemnify us against claims, damages, and expenses (including reasonable attorneys’ fees) arising from your misuse of the App or violation of these Terms, to the extent permitted by law.
10. Privacy
Our Privacy Policy explains how information is handled: https://www.hanworks.online/sudoku/privacy
11. Changes and Termination
We may update the App or these Terms. Material changes will be reflected by updating the “Last updated” date and, where appropriate, in-App notice. Continued use after changes means you accept the updated Terms.
We may suspend or discontinue the App or features at any time. Your license ends if you violate these Terms.
12. Governing Law
These Terms are governed by the laws of the People’s Republic of China (excluding conflict-of-law rules), without prejudice to mandatory consumer protections in your place of residence. Courts in Shanghai, China shall have non-exclusive jurisdiction, except where mandatory local law requires otherwise.
13. Contact
Chen Ting (HanWorks)
Email: support@hanworks.online
Terms: https://www.hanworks.online/sudoku/terms
Privacy: https://www.hanworks.online/sudoku/privacy
14. Apple-Specific Terms
You acknowledge that:
- These Terms are between you and Chen Ting (HanWorks), not Apple.
- Apple has no obligation to provide maintenance or support for the App.
- In the event of any failure of the App to conform to an applicable warranty, you may notify Apple, and Apple may refund the purchase price of the App (if any) to the extent required; to the maximum extent permitted by law, Apple has no other warranty obligation.
- Apple is not responsible for addressing claims relating to the App, including product liability, legal/regulatory compliance, or consumer protection claims.
- Apple is not responsible for investigating, defending, settling, or discharging third-party intellectual property infringement claims.
- Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.
- You represent that you are not located in a country subject to a U.S. government embargo and are not on a U.S. government prohibited/denied party list.
This document is provided for App Store listing based on the App’s current design. It is not formal legal advice.