Mesos Terms of Service

Effective: June 21, 2026

1. Purpose

These Terms set forth the conditions of use, procedures, rights, obligations, and responsibilities for the Mesos app and related services provided by the Company.

2. Definitions

1. "Service" means the Mesos app and all related features provided by the Company.
2. "User" means any person who uses the Service in accordance with these Terms.
3. "Content" means all materials within the Service, including its features, visual and audio design, text, and built-in exercise references.
4. "User Data" means data you create while using the Service, such as workout plans, training logs (exercises, sets, reps, weights, durations, dates, notes), body metrics you choose to enter, and app preferences.
5. "Subscription" means an optional paid plan that unlocks premium features, purchased through the Apple App Store or Google Play Store.

3. Effect and Modification of Terms

1. These Terms apply to all users of the Service.
2. The Company may amend these Terms within the scope permitted by law and will announce any changes through the App or this page.
3. If you do not agree to the amended Terms, you may stop using the Service and uninstall the App. Continued use after the effective date of the amended Terms constitutes acceptance.

4. Provision of the Service

1. The Company provides the following Service.
   • Creating and managing workout plans and routines
   • Logging training — exercises, sets, repetitions, weights, durations, rest times, dates, and notes — stored on your device
   • Reviewing your training history and progress
   • Optional premium features unlocked by Subscription
   • An optional account and cloud sync feature that may be offered in a future version, off by default
   • Other services that the Company may additionally develop or provide
2. The Service is local-first. Core features, including logging workouts, function on your device and do not require an internet connection. An internet connection is needed only for subscription processing and, if you opt in, cloud sync.
3. The Service is provided 24 hours a day, 365 days a year in principle. However, the Service may be temporarily limited due to app updates, system maintenance, network outages, app-store outages, or device conditions.
4. The Company may modify the contents of the Service to improve quality, in which case changes will be announced via app update.

5. Use of the Service

1. The Service can be used immediately after installation without any account registration. An optional account, if introduced, is required only for cloud sync.
2. You must comply with these Terms and applicable laws when using the Service.
3. Mobile data charges incurred while using the Service are your responsibility.

6. Subscriptions, Billing, and Refunds

1. The Service is free to install and use for its core features (logging). The Company may offer optional Subscriptions and one-time in-app purchases that unlock premium features.
2. All subscription and in-app purchases, renewals, and cancellations are processed by the Apple App Store or Google Play Store through their respective billing systems (Apple StoreKit / Google Play Billing). The Company does not receive or store your payment card details.
3. Auto-renewal: Subscriptions automatically renew at the end of each period unless cancelled at least 24 hours before the end of the current period, in accordance with the applicable store's rules. You can manage or cancel a Subscription at any time in your app store account settings.
4. Refunds: Refunds are handled by the app stores under their own policies, not directly by the Company.
   • Apple App Store: support.apple.com/billing
   • Google Play Store: support.google.com/googleplay
5. Pricing, trial terms, and renewal terms are presented in the App and the relevant store at the time of purchase and are governed by that store's terms.

7. Advertising

The Service does not display advertisements and does not include third-party advertising or tracking SDKs at launch.

8. User Obligations

You must not do any of the following.

1. Unauthorized modification, reproduction, distribution, transmission, publication, or performance of information or content within the Service
2. Infringement of any third party's intellectual property or other rights
3. Defamation of, or interference with the business of, the Company or any third party
4. Reverse engineering, decompiling, or disassembling the Service
5. Using any tool or means to circumvent Subscription billing or unlock premium features without payment
6. Interfering with the normal operation of the Service or the app stores' billing systems
7. Other acts in violation of applicable laws

9. Intellectual Property

1. All content provided by the Service (features, visual and audio design, text, exercise references, etc.) is owned by the Company or its licensors.
2. You may not reproduce, distribute, transmit, publish, or create derivative works from the Service's content for commercial purposes without prior written consent from the Company.
3. User Data you create remains yours. You may use the Service only for personal, non-commercial purposes.

10. User Data Management

1. The Service is local-first. By default, all User Data is stored only on your device's local storage and is not transmitted to the Company's servers.
2. You are solely responsible for managing User Data on your device. The Company is not liable for data loss caused by device damage, App uninstallation, OS reset, or similar events, except where the optional cloud sync feature applies and you have enabled it.
3. Unless you enable the optional cloud sync feature, User Data is maintained per device only and is not automatically synchronized or transferred between devices. We recommend backing up or exporting any data you wish to keep.

11. Health and Fitness Disclaimer

1. The information you record in the Service is a personal training log. The Service is not a medical device and the information it provides is not medical advice, diagnosis, or treatment.
2. Exercise involves inherent risks. You should consult a qualified healthcare or fitness professional before beginning, changing, or continuing any exercise program, and you assume all risk associated with your training.
3. The Company does not guarantee any specific fitness, health, or performance outcome from use of the Service.

12. Service Limitations and Suspension

1. The Company may limit or suspend the Service in the following cases.
   • Unavoidable circumstances such as maintenance of service facilities
   • Users interfering with the Company's business activities
   • Outages of third-party services (e.g., app store billing or, where applicable, cloud sync)
   • Force majeure including natural disasters or national emergencies
2. The Company may limit or suspend all or part of the Service in cases of national emergency, service-facility failure, or overload of service usage that disrupts normal operation.

13. Disclaimer of Warranty

1. The Company is exempt from responsibility for service provision when the Service cannot be provided due to force majeure or equivalent unavoidable causes.
2. The Company is not liable for service disruptions caused by the user's fault.
3. The Service is provided for fitness planning and tracking purposes and does not guarantee specific health or performance results.
4. The Company has no obligation to intervene in disputes between users or between a user and any third party (including the app stores) arising in connection with the Service, and is not liable for damages therefrom.

14. Limitation of Liability

To the maximum extent permitted by law, the Company is not liable for any indirect, incidental, or consequential damages incurred by users in connection with the Service, except for damages caused by the Company's willful misconduct or gross negligence. Nothing in these Terms limits any liability that cannot be limited under applicable law.

15. Dispute Resolution

1. The Company and users shall make every effort to amicably resolve any disputes arising from use of the Service.
2. If a dispute cannot be resolved through the efforts in paragraph 1, either party may bring an action before the court with jurisdiction under the Civil Procedure Act.
3. Any lawsuit between the Company and a user shall be governed by the laws of the Republic of Korea.

16. Age Requirement

The Service is intended for users 17 years of age and older. By using the Service, you represent that you meet this age requirement.

17. Contact

For inquiries regarding these Terms, please contact us using the information below.

Supplementary Provisions

These Terms are effective from June 21, 2026.