Terms of Use

These Terms of Use ("Terms") govern your use of Round ("the App"). By using the App, you are deemed to have agreed to these Terms.

1. About the App

The App is an interval-timer application that supports interval-based exercise such as strength training, HIIT, Tabata, and circuit training. It provides Work / Rest signals via sound and haptics based on preset time configurations, synchronizes with Apple Watch, and writes workout records to Apple HealthKit.

The App also displays the following information for reference:

• Predicted (before a session) and estimated (after a session) active energy burned, calculated using a body weight you enter or a body weight read from Apple Health
• Measured active energy recorded when you perform a workout on Apple Watch (in versions where Round Pro is available and you explicitly use that feature)
• 3D exercise animations, representative still images, and descriptions of the muscles and movement patterns involved

Body weight and active energy are read from Apple Health only if you grant the corresponding permission.

2. Relationship with Apple's standard EULA

The App is distributed through the Apple App Store, and Apple's "Standard Application License (EULA)" applies in addition to these Terms. These Terms supplement that standard EULA; where the two conflict, these Terms prevail.

3. Training-support tool (medical disclaimer)

The App is an interval timer that supports training and is not a medical device. The Work / Rest durations, preset configurations, and progress shown by the App do not guarantee the safety or appropriate intensity of any exercise, and are not intended to provide medical diagnosis, treatment, prevention, or advice. If you have any concerns about your health — including conditions of the heart, blood pressure, or joints, or if you are pregnant — consult a physician or other qualified professional before beginning exercise.

About calorie figures. The active energy figures shown by the App are not for medical use. Predicted and estimated values are approximations derived from body weight, exercise type, and duration, and their accuracy is not guaranteed. Actual energy expenditure varies substantially with body size, body composition, exercise intensity, physical condition, and environment.

Measured active energy recorded by Apple Watch is likewise affected by the device model, how the watch is worn, sensor condition, and your Apple Health permissions and recorded data. These figures are not intended for medical assessment, diagnosis, or weight-management advice.

About 3D animations and exercise information. The 3D animations, representative still images, and muscle and movement-pattern information shown by the App are general reference material. They are not personalized form coaching, they do not guarantee that a movement is safe for you, and they do not constitute diagnosis or treatment. Appropriate execution differs according to body size, range of motion, pre-existing conditions, and the equipment used.

Do not use anything the App displays as a substitute for deciding whether to stop exercising or whether to seek medical attention. If you experience pain, dizziness, shortness of breath, palpitations, or any other abnormality while exercising, stop immediately and seek medical care as appropriate.

4. Use during exercise is at your own risk

Training conducted using the App is performed at your own judgment and responsibility. The App does not include features that automatically adjust exercise intensity or detect danger. Decisions about preset content, exercise form, when to rest, and when to stop training are entirely your responsibility.

5. Data storage and risk of loss

The App's data (presets, history, settings) is stored only on your Apple device. Because iCloud sync is not provided, data may be lost due to device failure, loss, reset, OS or app issues, device replacement, or uninstallation of the App. We recommend backing up important records (e.g., via screenshots) as appropriate.

6. Prohibited acts

• Acts that violate laws or public order
• Reverse engineering, modifying, or making unauthorized access to the App
• Acts that infringe on the rights, privacy, or honor of others
• Redistributing the App with claims of medical or health efficacy
• Other acts the provider deems inappropriate

7. Modification, suspension, or termination

The provider may modify, suspend, or terminate the App's contents, features, and free / paid boundaries as necessary. The provider is not liable for any damages arising therefrom, to the extent permitted by law.

8. Disclaimer and limitation of liability

To the extent permitted by law, the provider is not liable for indirect, special, consequential, or punitive damages, lost profits, loss of data, or physical injury related to exercise or training, arising from your or any third party's use of the App.

If any part of this section is held unenforceable under the Consumer Contracts Act of Japan or other mandatory law, that provision shall apply only to the maximum extent permitted by such law, without affecting the validity of the remaining provisions.

9. Intellectual property

Copyright, trademark, and other intellectual property rights relating to the App belong to the provider or other legitimate rights-holders.

10. Relationship with Apple

These Terms are entered into between you and the provider of the App; Apple Inc. is not a party. The provider, not Apple, is solely responsible for the App and its contents. Apple has no obligation to provide maintenance, support, warranty, or to address intellectual-property claims relating to the App.

11. Revisions

These Terms may be revised as needed. We will notify of material changes in-app or on this page.

12. Governing law

These Terms are governed by the laws of Japan.

13. Provider information and contact

Provider: Round
Contact: lyosuke.nakayama@gmail.com

For inquiries about these Terms, please contact the address above.