Terms of Service

Effective Date: July 19, 2026

Last Updated: July 19, 2026

Services: 4To1 Planner, 1DW, AI Coach, ASOP-WCC, and all related services

Operator: Mark Zhou

Website: 4to1planner.com

1. Acceptance of Terms

By accessing or using the 4To1 Planner website, 1DW web application, or any related services (collectively, the "Service"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, do not use the Service.

We may update these Terms from time to time. Continued use of the Service after changes constitutes acceptance of the revised Terms.

2. Description of Service

4To1 Planner provides personal productivity and planning tools based on the 4To1 Method™, including but not limited to:

We may add, modify, or discontinue features at any time with reasonable notice.

3. Account Registration

To access certain features, you may need to create an account using a supported authentication provider (Google, Apple, or WeChat). You agree to:

You must be at least 13 years old to use the Service.

4. Subscription and Payments

4.1 Free Tier

Basic features of the Service are available at no cost. Free accounts may have limitations on features, storage, or AI interactions.

4.2 Pro Subscription

Premium features are available through a paid subscription ("Pro"). Payment is processed through Lemon Squeezy. By subscribing, you agree to:

4.3 Free Trial

We may offer a free trial period. If you do not cancel before the trial ends, your subscription will automatically convert to a paid plan.

5. User Content

You retain ownership of all content you create using the Service ("User Content"), including plans, tasks, notes, and goals. By using the Service, you grant us a limited license to store, process, and display your User Content solely for the purpose of providing the Service to you.

You are responsible for your User Content. You agree not to upload content that:

6. AI Coach Disclaimer

The AI Coach feature provides suggestions and feedback based on your planning data. It is a productivity tool, not professional advice. The AI may occasionally produce inaccurate or inappropriate suggestions. You are solely responsible for decisions made based on AI Coach output.

We do not guarantee that AI-generated content will be accurate, complete, or suitable for your specific circumstances.

7. Acceptable Use

You agree not to:

8. Social Publishing (ASOP-WCC)

If you use the ASOP-WCC social media publishing feature, you additionally agree to:

We are not responsible for actions taken by social media platforms against your accounts due to content you publish.

9. Intellectual Property

The Service, including its design, code, branding, the 4To1 Method™, and all related intellectual property, is owned by Mark Zhou. You may not copy, modify, or create derivative works from the Service without express written permission.

The 4To1 Method™ and associated frameworks are proprietary. Use of the methodology within the Service does not grant you rights to commercialize it independently.

10. Data and Privacy

Your use of the Service is also governed by our Privacy Policy, which describes how we collect, use, and protect your personal information.

11. Service Availability

We strive to maintain high availability but do not guarantee uninterrupted access. The Service may be temporarily unavailable due to maintenance, updates, or circumstances beyond our control. We are not liable for any loss or damage resulting from service interruptions.

12. Termination

You may delete your account at any time. We may suspend or terminate your access if you violate these Terms. Upon termination:

13. Limitation of Liability

To the maximum extent permitted by law, the Service is provided "as is" without warranties of any kind. We shall not be liable for any indirect, incidental, special, consequential, or punitive damages arising from your use of the Service.

Our total liability for any claim related to the Service shall not exceed the amount you paid us in the 12 months preceding the claim.

14. Indemnification

You agree to indemnify and hold harmless Mark Zhou and any affiliates from any claims, damages, or expenses arising from your use of the Service or violation of these Terms.

15. Governing Law

These Terms are governed by the laws of the People's Republic of China. Any disputes shall be resolved through friendly negotiation first, and if unsuccessful, submitted to the competent court in Beijing, China.

16. Contact

For questions about these Terms, please contact: