Terms of Use

Last Updated: April 24, 2026

These Terms of Use (the "Terms") set forth the conditions for using "NAGI" (the "App") provided by Masahiro Shindo (the "Developer"). By downloading, installing, or using the App, you agree to be bound by these Terms.

1. Purpose of the App

The App is a support tool that allows users to record and review infusion-related events, replacement records, physical condition, and daily-life logs for their own reference. The App is not a medical device and is not intended to provide medical acts, diagnosis, treatment, disease prevention, medication or infusion instructions, or emergency response. It does not replace judgment, instructions, or advice from physicians, pharmacists, nurses, or other healthcare professionals.

2. User Responsibility

  1. You use the App at your own responsibility.
  2. You are responsible for the accuracy and timeliness of the information you enter, for confirming notification settings, and for any backup or management you consider necessary.

3. Medical Disclaimer

  1. Any displays, notifications, timelines, summaries, or other information in the App are provided only as reference information based on records entered by the user.
  2. The Developer does not guarantee that the App is suitable for medical decision-making, medication or infusion decisions, dosage or timing decisions, treatment decisions, response to physical changes, or emergency response.
  3. For medication, dosage, infusion timing, treatment policy, physical changes, or emergency response, you must follow the instructions of your physician or other appropriate healthcare professional.

4. Notification Disclaimer

The App may use device or operating-system notification features, but the Developer does not guarantee delivery, timing, vibration, sound, or background behavior of notifications. The Developer is not responsible for any damage arising from delayed, missing, duplicate, or unavailable notifications.

5. User Data

Under the current specification, records created in the App are primarily stored locally on the user’s device. Data may be lost due to device malfunction, OS issues, deletion, reset, device replacement, user error, or similar circumstances. The Developer does not guarantee permanent storage, completeness, or recoverability of data.

6. In-App Purchases

The App may offer optional in-app purchases, auto-renewable subscriptions, or one-time purchases for the purpose of supporting development. Payment, billing, renewal, cancellation, refunds, purchase restoration, and other purchase-related matters are subject to Apple’s terms and procedures. Active subscriptions will generally continue to provide access to the applicable features until the end of the current subscription period. After the subscription period ends, those features may no longer be available.

7. Intellectual Property

All rights, including copyrights, designs, text, images, layout, trademarks, and software in or relating to the App, belong to the Developer or the rightful owner. Except as permitted by applicable law, you may not reproduce, redistribute, modify, reverse engineer, or otherwise exploit the App without permission.

8. Prohibited Conduct

  1. Violating laws or public order and morals
  2. Interfering with the operation of the App
  3. Using bugs or limitations of the App for improper purposes
  4. Infringing the rights or interests of the Developer or any third party
  5. Entering or sending false information
  6. Unauthorized access, analysis, tampering, or similar conduct
  7. Any other conduct the Developer reasonably considers inappropriate

9. Changes, Suspension, or Termination

The Developer may change, add, suspend, or terminate all or part of the App for reasonable reasons, including service improvement, maintenance, security, legal compliance, platform changes, technical requirements, or operational necessity. If a change materially disadvantages users, such as by removing a core paid feature, substantially limiting the scope of a paid feature, or changing important pricing or service conditions, the Developer will provide notice in advance, to the extent permitted by law, through the App, distribution page, or related webpage.

10. Disclaimer of Warranties and Limitation of Liability

  1. The Developer makes no warranty that the App is free from defects, legally or factually, or that it meets any specific purpose, accuracy, completeness, continuity, or safety expectation of the user.
  2. The Developer is not liable for any damage arising from the use of or inability to use the App, except in cases of willful misconduct or gross negligence.
  3. Even where liability applies, the Developer’s liability is limited to direct and ordinary damages actually incurred by the user.

11. Changes to the Terms

The Developer may revise these Terms when necessary. When these Terms are revised, the Developer will announce the revised content and effective date through the App, its distribution page, or a related webpage as appropriate. Changes that materially disadvantage users will be announced in advance within a reasonable period, to the extent permitted by law.

12. Governing Law and Jurisdiction

These Terms shall be governed by the laws of Japan. Any dispute relating to the App or these Terms shall be subject to the exclusive jurisdiction of the court having jurisdiction over the Developer’s location as the court of first instance.

13. Contact

Developer: Masahiro Shindo
Email: mshindoapp@gmail.com