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GRIT
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Terms of use

Last updated: 2026-09-25

These Terms of Use (the "Terms") set the conditions for using the fitness logging application "GRIT" (the "Service") provided by 原島 一桂 (the "Company"). By using the Service, you are deemed to have agreed to these Terms.

Article 1 (Application)

These Terms apply to all relationships between users and the Company regarding use of the Service. The Company may set additional rules for using the Service. Those rules form part of these Terms.

Article 2 (Registration)

A person who wants to use the Service applies for registration by the method the Company specifies. Registration is complete when the Company approves it. You must provide accurate, up-to-date information when you register.

The Company may refuse an application in the following cases.

  • The application includes false information
  • The applicant has previously violated these Terms
  • The Company otherwise decides that registration is not appropriate

Article 3 (Account management)

You are responsible for managing your account information (email address, password, and similar details). The Company is not liable for damage caused by inadequate management, mistakes in use, or use by a third party.

Article 4 (Paid plans)

The Service has features you can use for free and features available on a paid plan. Fees, payment methods, what a paid plan includes, and how to cancel follow the notation based on the Act on Specified Commercial Transactions and the terms of Apple’s App Store.

The paid plan “GRIT Pro” is an auto-renewing subscription that can be purchased only through App Store billing inside the iOS app. There is a monthly plan (product ID: com.grit.mobile.pro.monthly) and a yearly plan (product ID: com.grit.mobile.pro.yearly).

Each plan includes a one-month free trial the first time. The free trial can be used only once in the same subscription group, including monthly and yearly. If you do not cancel before the free trial ends, the plan you chose renews automatically.

The price is shown in the app and on the App Store purchase screen as the regional price returned by the store. This website does not list a fixed amount.

Purchases from Android and the web are not offered. With the same GRIT account, a GRIT Pro entitlement bought on iOS is reflected in the plan check on other devices.

Payment method: Payment is made through Apple’s App Store (the payment method on the Apple ID). Google Play billing is not offered.

Cancellation and refunds: Cancel before the next renewal from “Manage subscription” in the iOS app, which opens App Store subscription management, or from Apple’s subscription management. After you cancel, you can keep using GRIT Pro until the end of the period already charged. Refunds follow Apple’s policy. We do not take payment or issue refunds ourselves.

Article 5 (Prohibited conduct)

You must not do any of the following when using the Service.

  • Acts that violate laws or public order and morals
  • Acts related to criminal activity
  • Acts that infringe the rights of the Company, other users, or a third party
  • Acts that interfere with operation of the Service
  • Unauthorized access, reverse engineering, and similar acts
  • Harassment, defamation, or discriminatory posts toward other users
  • Any other act the Company considers inappropriate

Article 6 (Suspension of the Service)

The Company may suspend or interrupt all or part of the Service without prior notice in the following cases.

  • When maintaining, inspecting, or updating systems used by the Service
  • When providing the Service is difficult because of an earthquake, lightning, fire, power outage, natural disaster, or other force majeure
  • When the Company otherwise decides that providing the Service is difficult

Article 7 (Restriction of use and deletion of registration)

If you violate these Terms, the Company may, without prior notice, restrict your use of all or part of the Service or delete your registration.

Article 8 (Disclaimer)

The Company does not warrant that the Service is free of factual or legal defects. The Service is a tool that helps you log and manage training. It does not provide health or medical advice. Train at your own responsibility.

The Company is not liable for any damage arising from the Service, except where the damage is caused by the Company’s willful misconduct or gross negligence.

Article 9 (Changes to the Service)

The Company may change, add, or discontinue the Service after notifying users. You agree to those changes.

Article 10 (Changes to these Terms)

When the Company considers it necessary, it may change these Terms at any time after notifying users. The revised Terms take effect when they are posted on this website.

Article 11 (Personal information)

The Company handles personal information obtained through use of the Service in accordance with its Privacy Policy.

Article 12 (Notices)

Notices between you and the Company are given by the method the Company specifies. A notice is effective when the Company sends it to the contact details you have registered.

Article 13 (No assignment)

You may not assign your position under the usage agreement, or assign or pledge rights or obligations under these Terms to a third party, without the Company’s prior written consent.

Article 14 (Governing law and jurisdiction)

These Terms are governed by the laws of Japan.

If a dispute arises in connection with the Service, the Tokyo District Court shall be the exclusive agreed court of first instance.

Contact

For questions about these Terms, contact:
Operator: 原島 一桂
Representative: 原島 一桂
Email: support@grit-workout.com
Contact: https://grit-workout.com/contact/
Address: Disclosed without delay when requested.
Phone: Disclosed without delay when requested.