Terms of Service

Last updated: 2026-05-15 Effective from: Initial public release of Knot Fit

Article 1 (Scope)

1. These Terms of Service (the "Terms") set forth the terms and conditions for the use of the iOS application "Knot Fit" (the "App") provided by monot Inc. ("we", "our", or "us"). By downloading, installing, or using the App, you agree to be bound by these Terms.
2. These Terms supersede the Standard End User License Agreement provided by Apple Inc.
3. Privacy matters concerning the App are governed by our separate Privacy Policy.

Article 2 (Provider Information)

For further provider information, please refer to the company profile page of our operating company. Our registered postal address and phone number will be disclosed promptly via the contact form above upon request, as required under Japan's Act on Specified Commercial Transactions.

Article 3 (Grant of License)

1. We grant you a non-exclusive, non-transferable, revocable license to download and install the App on your iOS device and use it personally, subject to the terms of the Apple App Store.
2. You may not use the App for the following purposes:
   • Decompiling, reverse engineering, or modifying the App
   • Redistributing, reselling, or lending the App to third parties
   • Performing any illegal activity or infringing on third-party rights through the App
   • Improper use via automated scripts or similar means
3. All intellectual property rights in the App belong to us or our licensors.

Article 4 (Knot Fit Pro Subscriptions and Lifetime Plan)

4.1 Available Plans

The App is free to use. We also offer "Knot Fit Pro" with additional features under the following plans:

The prices above are those in effect as of the Last updated date of these Terms. As provided in Section 4.3, existing subscribers' auto-renewal price will continue to reflect the price at the time of purchase. For the latest pricing and regional pricing, please refer to the in-app purchase screen or the App Store product page for this App.

4.2 Auto-Renewal

1. Monthly and yearly plans automatically renew at the same plan unless cancelled at least 24 hours before the end of the current period.
2. Renewal charges are billed to the payment method registered to your Apple account within 24 hours of the end of the current period.
3. You can cancel at any time via "Settings → Apple ID → Subscriptions" on your iOS device or "Account → Subscriptions" in the App Store.

4.3 Price Grandfathering at Time of Subscription

1. Even if we change the published price of Knot Fit Pro in the future, our operational policy is to maintain, on auto-renewal, the price at the time of subscription for users whose subscription is already active at the time of the change. Specifically, at a price change we will offer the new price under a new product identifier, while existing subscriptions continue to auto-renew at their originally purchased product identifier and price.
2. The preceding paragraph reflects our operational policy on a best-efforts basis and is not a contractual guarantee. It does not apply in the following cases:
   • If you cancel your subscription and later resubscribe, the price applicable at the time of resubscription will apply
   • If we are unable to continue this operation due to changes to the Apple App Store, StoreKit features, or applicable law
   • If you change your Apple ID and purchase anew
3. The actual price, auto-renewal terms, and cancellation methods for each plan are governed by the information shown on the in-app purchase screen or on the App Store product page for this App.

4.4 Refunds

1. As all purchases are made through the Apple App Store, refunds are subject to Apple's policies. We cannot issue refunds directly.
2. To request a refund, please apply via Apple's support page (https://reportaproblem.apple.com/).
3. This does not affect statutory refund rights under applicable law.

4.5 Free Trial

1. The Pro Yearly plan may include a 7-day free trial via Apple StoreKit's Introductory Offer. The availability and duration of the free trial as shown on the in-app purchase screen is authoritative.
2. If you do not cancel at least 24 hours before the end of the free trial period, you will be automatically converted to the paid plan and charged the price shown on the purchase screen.
3. Free trials are available only to new users. An Apple ID that has previously purchased Knot Fit Pro or used a free trial is not eligible.

Article 5 (HealthKit Data)

1. With your explicit permission, the App reads from and writes to Apple HealthKit.
2. HealthKit data is never transmitted to our servers.
3. You can change HealthKit access at any time via "Settings → Privacy & Security → Health" on iOS.
4. For details on HealthKit data handling, see our Privacy Policy.

Article 6 (Medical and Health Disclaimer)

1. The App is not a medical device and is not intended for medical diagnosis or treatment.
2. Information provided by the App (progress charts, streaks, estimated 1RM, etc.) is for reference only as a fitness log and does not constitute medical advice. Values shown in the App such as body weight, body fat percentage, heart rate, sleep duration, and distance depend on the accuracy of Apple HealthKit and the underlying measurement devices, and we do not warrant their medical or metrological accuracy.
3. Exercise instructions, suggested form, target muscles, equipment, suggested loads, set / rep counts, rest periods, and other exercise-related content provided in the App are general reference information only. We do not warrant their accuracy, timeliness, suitability for your individual physical condition, experience, or fitness level, or any expected results. You are responsible for deciding which exercises to perform and how to perform them, at your own discretion.
4. The mindfulness features of the App (such as breathing guides) are supplementary tools intended to aid relaxation and focus, and do not constitute medical treatment. If you experience symptoms such as hyperventilation, dizziness, or any discomfort during a breathing exercise, stop immediately and, where appropriate, consult a medical professional.
5. You exercise at your own discretion and risk. The App's streak (consecutive days), Personal Record (PR), estimated 1RM, and other tracking features are intended to help you observe your own progress objectively, and are not recommendations to attempt challenges or loads beyond a safe range. Where appropriate, consult a medical professional before exercising.
6. Any physical injury, illness, or other harm arising from the act of exercising itself shall in principle be borne by you, and we are not responsible for such harm. For damages directly arising from the provision of the App itself (such as information display or the operation of features), our liability is governed by Article 9.

Article 7 (User Content)

1. Intellectual property rights in workout records, body logs (body weight, body fat, body measurements, photos), and other content stored in the App ("User Content") belong to you.
2. You may share User Content with social networks or other external services via the App's "Receipt image" feature. Once shared, the handling of such content is governed by the terms and privacy policies of those external services.
3. We do not store User Content on our own servers. If you enable iCloud sync, the relevant User Content is stored within your own iCloud account operated by Apple.
4. Health-related data that the App obtains from Apple HealthKit (body mass, body fat percentage, lean body mass, height, sleep, HealthKit workouts) is excluded from our iCloud sync in compliance with Apple App Store Review Guideline 5.1.3(ii). Such data is stored only within Apple HealthKit and is not synced to iCloud through us, except where you yourself sync HealthKit to iCloud via the HealthKit system.

Article 8 (Prohibited Actions)

You must not:

1. Violate any law, these Terms, or public order and morals
2. Infringe on intellectual property, image, privacy, reputation, or other rights of us, other users, or third parties
3. Interfere with the operation of the App or gain unauthorized access
4. Exploit vulnerabilities in the App to unlock paid features improperly
5. Decompile, reverse engineer, or modify the App
6. Reproduce, redistribute, or sell the App's content in unauthorized ways
7. Engage in any other action that we deem inappropriate

Article 9 (Disclaimer and Limitation of Liability)

1. We do not warrant the accuracy, completeness, usefulness, or fitness for a particular purpose of the App. The App is provided "as is".
2. For damages caused by our willful misconduct or gross negligence, we are liable to the extent required by applicable law, and the disclaimers and liability cap in this Article do not apply.
3. In cases not covered by the preceding paragraph (i.e., in cases of our ordinary negligence), we are liable only for ordinary damages directly arising from or related to your use of the App, and the amount of damages is capped at the amount you have paid us for use of the App in the preceding 12 months.
4. In the case of the preceding paragraph, we are not liable for special, indirect, or consequential damages, including lost profits or data loss. This limitation does not apply if such damages are caused by our willful misconduct or gross negligence.
5. If any part of this Article is found invalid under the Consumer Contract Act or other applicable law, such invalid portion shall be reduced to the extent permitted by law, and the remaining portions shall continue in full force and effect.

Article 10 (Changes, Suspension, and Termination of Service)

1. We may change, add to, or remove App content without prior notice.
2. We may temporarily suspend the App due to maintenance, system issues, or force majeure.
3. We may terminate the App with reasonable prior notice.

Article 11 (Changes to these Terms)

1. We may change these Terms as necessary.
2. For material changes, we will provide notice in the App, on our website, or by email at least 30 days in advance.
3. Your continued use after the change constitutes acceptance of the revised Terms.

Article 12 (Privacy)

The handling of personal information is governed by our separate Privacy Policy.

Article 13 (Notices)

Legal notices under these Terms may be given via in-app display or posting on our website (https://monot.co.jp/knotfit/). The App uses iOS local notifications for functional reminders, but does not use remote push notifications via APNs.

Article 14 (No Assignment)

You may not assign your rights or obligations under these Terms to a third party without our prior written consent.

Article 15 (Severability)

If any provision of these Terms is held invalid or unenforceable, the remaining provisions shall continue in full force and effect.

Article 16 (Governing Law and Jurisdiction)

1. These Terms are governed by the laws of Japan.
2. Any dispute arising out of these Terms or the App shall be submitted to the Tokyo District Court as the court of exclusive jurisdiction of first instance. Note, however, that mandatory provisions of the GDPR and other applicable laws may still apply to users residing in the EU or other jurisdictions; this Article does not exclude their application.

Article 17 (Relationship with Apple)

This Article incorporates the provisions required by Exhibit B of the Apple Developer Program License Agreement. Apple Inc. and its subsidiaries are third-party beneficiaries of these Terms and have the right to enforce these Terms directly against you.

17.1 Acknowledgment

These Terms are concluded between you and us only, and not with Apple. We, not Apple, are solely responsible for the App and its content. These Terms may include terms more restrictive than the Apple Media Services Terms and Conditions. To the extent there is any conflict between these Terms and the Apple Media Services Terms and Conditions, these Terms will govern with respect to the subject matter of these Terms.

17.2 Scope of License

The license granted to you for the App is a non-transferable license to use the App on any Apple-branded products that you own or control and as permitted by the Usage Rules set forth in the Apple Media Services Terms and Conditions, including Family Sharing or Volume Purchasing where applicable.

17.3 Maintenance and Support

We alone are responsible for providing any maintenance and support services for the App. Apple has no obligation whatsoever to furnish any maintenance and support services for the App.

17.4 Warranty

In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any) for the App to you. To the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to the App, and any other claims, losses, liabilities, damages, costs, or expenses attributable to any failure to conform to any warranty will be our sole responsibility.

17.5 Product Claims

You and we acknowledge that Apple is not responsible for addressing any claims by you or any third party relating to the App or your possession and use of the App, including but not limited to: (i) product liability claims; (ii) any claim that the App fails to conform to any applicable legal or regulatory requirement; and (iii) claims arising under consumer protection, privacy, or similar legislation (including those related to the App's use of HealthKit and HomeKit frameworks).

17.6 Intellectual Property Rights

In the event of any third-party claim that the App or your possession and use of the App infringes that third party's intellectual property rights, we, not Apple, will be solely responsible for the investigation, defense, settlement, and discharge of any such intellectual property infringement claim, to the extent provided by these Terms.

17.7 Legal Compliance

You represent and warrant that: (i) you are not located in a country that is subject to a U.S. Government embargo, or that has been designated by the U.S. Government as a "terrorist supporting" country; and (ii) you are not listed on any U.S. Government list of prohibited or restricted parties.

17.8 Developer Contact Information

Direct any inquiries, complaints, or claims regarding the App to the contact information set forth in Article 18.

17.9 Third Party Terms of Agreement

You agree to comply with any applicable third-party terms when using the App (for example, if you use the App over a wireless data network, you must not violate your wireless data service agreement).

17.10 Third Party Beneficiary

You and we acknowledge and agree that Apple Inc. and Apple's subsidiaries are third-party beneficiaries of these Terms, and that, upon your acceptance of these Terms, Apple will have the right (and will be deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary.

Article 18 (Provider Information and Contact)

For inquiries regarding these Terms, please use our operating company's contact form. The following provider information is disclosed in accordance with the minimum terms required by the Apple Developer Program License Agreement:

• Company name: monot Inc. (株式会社 Monot)
• Address: x-x-x-xxx, Nozawa, Setagaya-ku, Tokyo xxx-xxxx, Japan
• Phone: +81-xx-xxxx-xxxx
• Email: support [at] knotfit.app
• Contact form: https://monot.co.jp/contact/
• App website: https://monot.co.jp/knotfit/

We recommend using the contact form above for all inquiries.