Terms of Service

Effective date: August 16, 2026 · Operated by Dong Ju Lee ("JustStart", "we", "us", "our")

These Terms of Service ("Terms") govern your access to and use of the JustStart mobile application and related services (the "Service"). By creating an account or using the Service, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the Service.

IMPORTANT — HEALTH, FITNESS & MEDICAL DISCLAIMER. JustStart provides general fitness information and workout suggestions. It is not a medical device, and it does not provide medical, nutritional, or physical-therapy advice. Exercise carries inherent risk of injury or, in rare cases, serious health events. Before beginning any exercise program, consult a qualified physician to confirm it is safe for you, especially if you have a pre-existing condition, are pregnant, or have been inactive. You are solely responsible for your own safety, technique, equipment, and environment. Stop immediately and seek professional help if you experience pain, dizziness, chest discomfort, or shortness of breath. By using the Service, you assume all risks associated with physical activity, including personal injury and property damage, to the fullest extent permitted by law.

1. Eligibility

You must be at least 13 years old to use the Service. If you are between 13 and the age of majority in your jurisdiction, you may use the Service only with the involvement of a parent or guardian.

2. Accounts and Security

You are responsible for maintaining the confidentiality of your sign-in credentials and for all activity under your account. You agree to provide accurate information and to notify us promptly of any unauthorized use.

3. The Service

JustStart generates workout recommendations based on the equipment, goals, and preferences you provide, and logs your completed sessions. Recommendations are informational only and may not be appropriate for every individual. We may change, suspend, or discontinue features at any time without liability.

4. Acceptable Use

You agree not to:

5. Intellectual Property

The Service, including its text, graphics, exercise descriptions, images, software, and branding, is owned by us or our licensors and is protected by copyright and other laws. We grant you a limited, non-exclusive, non-transferable license to use the Service for your personal, non-commercial fitness tracking. You may not copy, resell, or distribute any part of the Service without our permission.

6. Third-Party Services

The Service relies on third-party services, including Google (Firebase) for authentication and cloud infrastructure. Your use of those services is subject to their own terms. We are not responsible for third-party services or their availability.

7. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE ERROR-FREE, UNINTERRUPTED, OR SECURE.

8. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR ANY PERSONAL INJURY, LOSS OF DATA, LOST PROFITS, OR OTHER DAMAGES ARISING FROM YOUR USE OF THE SERVICE, WHETHER IN CONTRACT, TORT, OR OTHERWISE. OUR TOTAL AGGREGATE LIABILITY TO YOU FOR ALL CLAIMS ARISING FROM THE SERVICE WILL NOT EXCEED THE GREATER OF THE AMOUNT YOU PAID US (IF ANY) IN THE TWELVE MONTHS PRECEDING THE CLAIM OR FIFTY US DOLLARS ($50). SOME JURISDICTIONS DO NOT ALLOW THESE LIMITATIONS, SO THEY MAY NOT APPLY TO YOU.

9. Indemnification

You agree to indemnify and hold us harmless from any claims, damages, or expenses (including reasonable attorneys' fees) arising from your use of the Service, your violation of these Terms, or your violation of any third-party rights.

10. Dispute Resolution and Arbitration

You and we agree to resolve disputes through binding individual arbitration, and to waive any right to a jury trial or to participate in a class action. Arbitration will be administered by a mutually agreed provider under its consumer rules, and may take place telephonically or in writing. This section does not preclude either party from seeking injunctive relief in a court of competent jurisdiction for intellectual-property or other equitable claims.

11. Governing Law

These Terms are governed by the laws of California, USA, without regard to conflict of laws principles.

12. Termination

You may stop using the Service and delete your account at any time through the app. We may suspend or terminate access for violations of these Terms.

13. Changes to These Terms

We may update these Terms from time to time. Material changes will be communicated through the Service. Continued use after changes take effect constitutes acceptance of the revised Terms.

14. Contact

Questions about these Terms? Contact us at JustStartSupport@gmail.com.