WhyRead Terms of Service

Last updated: August 5, 2026

Effective date: May 7, 2026

These Terms of Service (these “Terms”) set out the conditions of use of “WhyRead” (the “Service”) provided by Cafigla LLC (Japanese name: 合同会社カフィグラ; address: 395-1-306 Iwakura Hanazono-cho, Sakyo-ku, Kyoto, Japan) (the “Operator”). Users shall use the Service after agreeing to these Terms.

Our contact email is info@cafigla.com.

Article 1 (Application)

  1. 1.These Terms apply to all relationships between the User and the Operator concerning use of the Service. The Service includes the website and mobile apps provided by the Operator, as well as browser extensions (for example, an extension for Google Chrome).
  2. 2.Rules, guidelines, and similar documents posted by the Operator within the Service or on the Operator’s website form part of these Terms.
  3. 3.If these Terms conflict with the rules and similar documents in the preceding paragraph, these Terms prevail unless those rules provide otherwise.

Article 2 (Definitions)

The terms used in these Terms have the following meanings.

  1. 1.“Operator” means Cafigla LLC (Japanese name: 合同会社カフィグラ; principal place of business: 395-1-306 Iwakura Hanazono-cho, Sakyo-ku, Kyoto, Japan).
  2. 2.“User” means any individual or legal entity that uses the Service.
  3. 3.“Account” means the identifying information registered by a User in order to use the Service.
  4. 4.“Saved Content” means URLs, notes, comments, source information, and other information that a User saves to the Service.
  5. 5.“AI Summary” means summary information of articles and similar content that the Operator generates and displays using external AI services.
  6. 6.“Paid Plan” means a form of feature provision that may be used by paying usage fees separately determined by the Operator.
  7. 7.“Minor” means a person who has not reached 18 years of age.
  8. 8.“Browser Extension” means an extension provided by the Operator that enables use of some features of the Service (such as saving pages) in a supported browser.

Article 3 (Account Registration and Management)

  1. 1.Users shall register an Account in the manner prescribed by the Operator.
  2. 2.Users shall appropriately manage and store Account information at their own responsibility.
  3. 3.The Operator is not liable for damages arising from inadequate management of Account information, errors in use, use by a third party, or similar circumstances, except in cases of willful misconduct or gross negligence by the Operator.
  4. 4.If unauthorized use of an Account is discovered, the User shall promptly notify the Operator.

Article 4 (Use by Minors)

  1. 1.Minors may, in principle, use the Service to the extent that it is available free of charge.
  2. 2.Minors may not apply for a Paid Plan, enter into a contract for a Paid Plan, or use the Service under a Paid Plan in any way. Paid Plans may be used only by persons who have reached the age of majority.
  3. 3.If it is discovered that a Minor has used a Paid Plan in violation of the preceding paragraph, the Operator may terminate the relevant contract, suspend use related to the Paid Plan, cancel Account registration, or take other necessary measures. Handling of fees and other matters in such cases shall be in accordance with applicable laws.

Article 5 (Contents of the Service)

  1. 1.The Service primarily provides the following features:
    • Saving URLs of articles, books, and similar items
    • Recording save reasons (Why), notes, and similar information
    • Linking to source information
    • AI Summary feature (subject to usage-count limits depending on plan and usage)
    • Saving pages via the Browser Extension (depending on supported browsers and availability)
  2. 2.The Operator may add, change, suspend, or terminate all or part of the Service without prior notice to Users.

Article 5-2 (Browser Extension)

  1. 1.Users may install the Browser Extension provided by the Operator, link it with their WhyRead Account, and save pages open in a supported browser to the Service.
  2. 2.In using the Browser Extension, Users shall also comply with the terms of use prescribed by the browser or the extension distribution platform.
  3. 3.Users shall manage the Browser Extension at their own responsibility. The Operator is not liable for damages arising from inadequate management of linked information, loss of a device, unauthorized use by a third party, or similar circumstances, except in cases of willful misconduct or gross negligence by the Operator.
  4. 4.Handling of content saved through the Browser Extension, AI Summaries, prohibited acts, and other conditions are subject to the other provisions of these Terms and the Privacy Policy.

Article 6 (Fees and Payment Methods)

  1. 1.The Service includes a free-of-charge scope and a Paid Plan.
  2. 2.Minors may not apply for or use a Paid Plan.
  3. 3.Fees, billing start dates, billing cycles, payment methods, and similar conditions of Paid Plans shall be as displayed separately within the Service or on the payment page.
  4. 4.Payment for Paid Plans may be processed through an external payment processor designated by the Operator (for example, Stripe). Users shall also comply with that processor’s terms and similar documents.
  5. 5.Except where permitted by law or where the Operator determines it necessary, paid fees are not refunded.

Article 7 (Plan Limits)

  1. 1.Limits may be set for each free plan and Paid Plan on the number of saved items, the number of AI Summary uses, and other features.
  2. 2.The content of usage limits, upper limits, and measurement periods may be changed at the Operator’s discretion.
  3. 3.Users shall not circumvent these limits by technical means or any other method.

Article 8 (Prohibited Acts)

Users shall not engage in the following acts in using the Service.

  1. 1.Acts that violate laws or public order and morals
  2. 2.Acts related to criminal activity
  3. 3.Acts that place excessive load on the Service’s servers, networks, systems, or similar infrastructure
  4. 4.Acts that may interfere with the operation of the Service
  5. 5.Acts that infringe the rights or interests of other Users, third parties, or the Operator (including intellectual property rights, privacy, and reputation)
  6. 6.Unauthorized access, or attempts thereof
  7. 7.Commercial use of information obtained through the Service without the Operator’s permission
  8. 8.Saving or posting content that is illegal, harmful, discriminatory, or that unjustly harms a third party
  9. 9.Registering false information
  10. 10.Other acts that the Operator determines to be inappropriate
  11. 11.Application for or use of a Paid Plan by a Minor, and related acts of falsely representing that one has reached the age of majority

Article 9 (Exclusion of Antisocial Forces)

  1. 1.In these Terms, “Antisocial Forces” means organized crime groups (boryokudan), members of organized crime groups, persons for whom five years have not elapsed since they ceased to be members of organized crime groups, associate members of organized crime groups, companies affiliated with organized crime groups, sokaiya (corporate racketeers), groups engaging in criminal activities under the pretext of social campaigns or political activities, special intelligence organized crime groups, and other persons equivalent thereto.
  2. 2.The User represents and warrants that the User is not, and will not in the future be, an Antisocial Force, and that the User is not, and will not be, involved with Antisocial Forces.
  3. 3.The User shall not cause Antisocial Forces to be involved with the Service, and shall not engage in any of the following acts:
    • Violent demands
    • Unjust demands exceeding legal responsibility
    • Threatening language or use of violence in connection with a transaction
    • Spreading rumors, or using fraud or force to damage the Operator’s credit or interfere with the Operator’s business
    • Other acts equivalent to the preceding items
  4. 4.If the Operator determines that the User has violated any of the preceding paragraphs, the Operator may terminate the contract based on these Terms without notice, or suspend use of the Service, cancel Account registration, or take other necessary measures.
  5. 5.The Operator is not liable for any damages incurred by the User as a result of measures taken by the Operator under this Article.
  6. 6.If the Operator incurs damages as a result of the User’s violation of this Article, the User shall compensate the Operator for such damages.

Article 10 (Intellectual Property Rights)

  1. 1.Copyrights, trademark rights, and all other intellectual property rights relating to the Service belong to the Operator or the legitimate rights holders.
  2. 2.Users shall not copy, republish, modify, publicly transmit, or otherwise use content within the Service beyond the scope necessary to use the Service.

Article 11 (Handling of Saved Content)

  1. 1.Rights in Saved Content are reserved to the relevant User or the legitimate rights holder.
  2. 2.The Operator may use Saved Content to the extent necessary to provide, maintain, and improve the Service, prevent misuse, and respond to failures.
  3. 3.If the Operator determines that there is a risk of a violation of law or these Terms, the Operator may delete or hide all or part of Saved Content.

Article 12 (Notes on AI Summaries)

  1. 1.AI Summaries are automatically generated using external AI services. The Operator does not warrant their accuracy, completeness, usefulness, or currency.
  2. 2.AI Summaries are provided as reference information. Final judgments shall be made at the User’s own responsibility.
  3. 3.When generating an AI Summary, part of Saved Content may be sent to an external AI service. Details are as set out in the Privacy Policy.
  4. 4.The Operator is not liable for damages arising from delayed generation, failure, or reduced quality of AI Summaries, or from failures on the external AI service side, except in cases of willful misconduct or gross negligence by the Operator.

Article 13 (External Services and External Links)

  1. 1.The Service may provide link displays to external sites and features that integrate with external services.
  2. 2.The Operator does not warrant the content, safety, availability, legality, or similar attributes of external sites or external services.
  3. 3.The Operator is not liable for damages arising from a User’s use of an external site or external service, except in cases of willful misconduct or gross negligence by the Operator.

Article 14 (Suspension of Use and Cancellation of Registration)

  1. 1.If the Operator determines that a User falls under any of the following, the Operator may, without prior notice, suspend all or part of the Service for that User, cancel Account registration, or take similar measures:
    • The User has violated any provision of these Terms
    • It is discovered that registered information is false
    • The User has defaulted on payment of fees or similar obligations
    • The User has not responded to communications from the Operator for a certain period
    • The Operator otherwise determines that use is not appropriate
  2. 2.The Operator is not liable for damages incurred by the User as a result of measures under this Article, except in cases of willful misconduct or gross negligence by the Operator.

Article 15 (Interruption and Suspension of the Service)

  1. 1.If the Operator determines that any of the following circumstances exists, the Operator may interrupt or suspend all or part of the Service without prior notice to Users:
    • When performing system maintenance, inspection, or updates
    • When provision becomes difficult due to force majeure such as earthquake, lightning, fire, power outage, or natural disaster
    • When systems, communication lines, or similar infrastructure stop due to an accident
    • When the Operator otherwise determines that interruption or suspension is necessary
  2. 2.The Operator is not liable for damages incurred by the User as a result of interruption or suspension under this Article, except in cases of willful misconduct or gross negligence by the Operator.

Article 16 (Disclaimer)

  1. 1.The Operator does not warrant that the Service is free of factual or legal defects (including, without limitation, defects relating to safety, reliability, accuracy, completeness, effectiveness, fitness for a particular purpose, and security).
  2. 2.The Operator is not liable for any damages incurred by the User arising from the Service, except in cases of willful misconduct or gross negligence by the Operator.
  3. 3.Notwithstanding the proviso of the preceding paragraph, if full exemption of the Operator’s liability for damages is not permitted under the Consumer Contract Act or other laws, the Operator’s liability shall be limited to the total amount of usage fees actually paid by the relevant User to the Operator during the most recent 12 months.

Article 17 (Changes to the Terms)

  1. 1.If the Operator determines it necessary, the Operator may change these Terms by notifying Users or by publishing the change on the Service.
  2. 2.The changed Terms take effect from the effective date separately determined by the Operator.
  3. 3.If a User uses the Service after a change, that User is deemed to have agreed to the changed Terms.

Article 18 (Communications and Notices)

  1. 1.Communications or notices between Users and the Operator shall be made in the manner prescribed by the Operator.
  2. 2.When the Operator sends a notice to a contact registered by a User, the notice is deemed to have arrived at the time it would ordinarily arrive.
  3. 3.Inquiries from Users to the Operator regarding the Service shall be made by email to info@cafigla.com.

Article 19 (Prohibition of Assignment of Rights and Obligations)

Users may not assign, have a third party succeed to, or provide as security their status under these Terms or their rights or obligations under these Terms without the Operator’s prior written consent.

Article 20 (Severability)

If any provision of these Terms or any part thereof is determined to be invalid or unenforceable under laws and regulations, the remaining portions excluding the invalid or unenforceable portion shall continue in full force and effect.

Article 21 (Governing Law and Jurisdiction)

  1. 1.These Terms are governed by the laws of Japan.
  2. 2.Any dispute arising between a User and the Operator in connection with the Service shall be subject to the exclusive agreed jurisdiction of the district court or summary court having jurisdiction over the location of the Operator’s principal place of business as the court of first instance.