Terms of Service

Effective: May 17, 2026

The authoritative Terms of Service for Mekutte is the Japanese version. The English below is for reference; the Japanese text controls in case of any discrepancy.

These Terms of Service (the “Terms”) set out the conditions for the provision and use of Mekutte (the “Service”). All users of the Service (“users”) must agree to these Terms before using the Service.

Article 1 (Application)

  1. These Terms apply to all relationships between users and the operator arising in connection with use of the Service.
  2. The operator may, in addition to these Terms, establish supplementary rules and guidelines for use of the Service. Such rules form part of these Terms regardless of their designation.

Article 2 (Registration)

  1. Some features of the Service require authentication via a Google account, or registration with an email address and password.
  2. The operator may decline to approve a registration if any of the following applies to the applicant:
    • The applicant has previously violated these Terms.
    • Any other case where the operator determines that registration is not appropriate.

Article 3 (Pricing plans)

  1. The Service offers a free plan (subject to caps on the number of published decks, pages per deck, audience size, etc.) and paid plans (monthly and yearly).
  2. The price, billing cycle, and other conditions of the paid plans are as displayed on the Service. Prices are billed in Japanese Yen (JPY).
  3. Payments are processed by Stripe, Inc., and users agree to comply with Stripe’s terms as well.
  4. If a user moves from a paid plan back to the free plan (including by cancellation or payment suspension), content published in excess of the free-plan cap may become inaccessible.
  5. Cancellation and plan changes can be performed via Stripe’s customer portal from the “Manage plan” entry in the user menu.

Article 4 (Published content)

  1. Users may publish their decks to third parties through the Service. The URL assigned to published content can be viewed by anyone without authentication, and users acknowledge and agree to this.
  2. Users are solely responsible for the rights clearance and legality of all material contained in their published content, including the copyright, portrait rights, and trademark rights of any uploaded images.

Article 5 (Audience participation)

  1. Users can enable audience emoji reactions, comments, and polls on published decks.
  2. Reactions, comments, and votes submitted by the audience are stored in the Service’s Firestore and become visible to viewers of the published deck and to the operator.
  3. Whether audience participation is accepted and the participant limits depend on the user’s plan.

Article 6 (Prohibited conduct)

When using the Service, users must not:

  • Violate laws or public order and morality.
  • Engage in conduct related to criminal acts.
  • Damage or disrupt the servers or network functions of the Service.
  • Interfere with the operation of the Service.
  • Infringe the intellectual property, portrait, privacy, reputation, or other rights of other users, audience participants, or third parties.
  • Engage in or attempt unauthorized access.
  • Provide direct or indirect benefits to anti-social forces.
  • Engage in any other conduct that the operator deems inappropriate.

Article 7 (Suspension of the Service)

  1. The operator may suspend or interrupt all or part of the Service without prior notice in the following cases:
    • For maintenance or updates.
    • Where provision becomes difficult due to force majeure such as earthquakes, lightning, fire, power outages, or natural disasters.
    • Where computers or communication lines are stopped due to an accident.
    • Any other case where the operator determines that provision is difficult.

Article 8 (Copyright)

  1. Copyright in content posted or published by a user through the Service (including deck text and uploaded images) remains with that user or its existing right-holder.
  2. The user grants the operator a non-exclusive, royalty-free license to use the content (including reproduction, display, and distribution) to the extent necessary for providing, improving, and promoting the Service.

Article 9 (Disclaimer)

  1. The operator makes no warranties, express or implied, regarding the Service’s freedom from factual or legal defects (including but not limited to safety, reliability, accuracy, completeness, effectiveness, fitness for a particular purpose, security defects, errors, bugs, or rights infringement).
  2. For damages caused by the operator’s willful misconduct or gross negligence, the operator bears liability to the extent permitted by applicable law.
  3. For damages caused by the operator’s ordinary (slight) negligence, the operator’s liability is limited to the user’s direct and ordinary actual damages, and does not extend to special damages (even where the operator could foresee them), lost profits, lost or altered data, or damages arising from claims by third parties. In addition, the aggregate amount of liability for damages based on ordinary negligence is capped at the higher of (a) the amount the user paid the Service during the 12 months immediately preceding the month in which the damage occurred, or (b) JPY 10,000.
  4. The preceding provisions do not apply to the extent they would be invalid under the Consumer Contract Act or other mandatory law.

Article 10 (Changes to the Service)

The operator may change, add to, or discontinue the Service with prior notice to users, and users consent to this.

Article 11 (Changes to these Terms)

  1. The operator may change these Terms in accordance with Article 548-4 of the Civil Code of Japan.
  2. When changing these Terms, the operator will notify users of the content of the change and the effective date by posting on the Service or by other appropriate means. As a rule, a reasonable period will be provided between notice and the effective date. Minor changes, correction of clerical errors, and changes that do not disadvantage users may take effect on the date of posting.
  3. If a user continues to use the Service on or after the effective date, the user is deemed to have agreed to the amended Terms.

Article 12 (Governing law and jurisdiction)

  1. These Terms are interpreted under the laws of Japan.
  2. Any dispute concerning the Service is subject to the exclusive agreed jurisdiction of the court having jurisdiction over the location of the operator’s head office.

Article 13 (Operator information and contact)

  • Operator (legal contracting party): Umi Ebisujima
  • Address: Yamato Bldg. 405, 1-6-16 Kanda-Izumicho, Chiyoda-ku, Tokyo 101-0024, Japan
  • Contact: Contact form

Article 14 (Disclosure under the Specified Commercial Transactions Act of Japan)

Provision of the paid plans constitutes mail-order sales under the Specified Commercial Transactions Act of Japan. The disclosure required by Article 11 of that Act (seller, price, payment method, cancellation, etc.) is published on a separate page: Specified Commercial Transactions Act disclosure.