Ato

Terms of Service

These Terms of Service ("Terms") set out the rights and obligations between yamirai (a trade name; "we") and users concerning the use of Ato.

Effective October 4, 2026 (beta). The Japanese version of these Terms is the governing version; this English version is a translation for your convenience.

Article 1 (Definitions)

In these Terms, the following words have these meanings.

  • "App": Ato, the macOS app
  • "Extension": the Ato extension for Chrome
  • "Website": the website at atolog.day
  • "Service": the App, the Extension, and the Website together
  • "User": a person who uses the Service
  • "Records": everything the App keeps on the User's Mac, namely activity metadata, summaries, the reflections the User writes, settings, and rules
  • "Third-Party Services": services provided by anyone other than us, including operating systems, cloud services, browsers, and AI services
  • "Consumer": a consumer as defined in Article 2, paragraph 1 of the Consumer Contract Act of Japan
  • "Business Use": use of the Service by a User as a business or for the purposes of a business

Article 2 (Application)

  1. These Terms apply to all matters between Users and us concerning the use of the Service. These Terms constitute standard terms (teikei yakkan) under Article 548-2 of the Civil Code of Japan.
  2. Our Privacy Policy forms part of these Terms.
  3. If we publish individual terms on the Website, such as conditions for a paid version, they also form part of these Terms and take precedence over these Terms where they conflict.

Article 3 (Agreement and start of use)

  1. Users shall read and agree to these Terms and the Privacy Policy before using the Service. The download page on the Website directs Users to them.
  2. A User is deemed to have agreed to these Terms when the User starts using the Service (including downloading or installing the App).
  3. A User under 18 shall use the Service only with the consent of a parent or other legal guardian.

Article 4 (The Service and system requirements)

  1. The App runs in the environment we specify on the Website or elsewhere. The supported environment may change as the App is updated.
  2. Some features of the App require permissions in the operating system. The User decides whether to grant them. Features whose permissions are not granted cannot be used.
  3. Some features rely on features of the operating system or Third-Party Services and are available only on supported devices, in supported languages, and with the required settings.
  4. The User bears the cost of the devices, network connections, and Third-Party Services needed to use the Service.

Article 5 (Beta and paid versions)

  1. The Service is currently in beta. Its features, specifications, and content may change. The beta is free of charge.
  2. In the future, we may offer all or part of the Service for a fee. The content, price, payment, cancellation, and refund terms of a paid version will be set on the Website when we start offering it.
  3. No fee arises unless the User applies for a paid version on their own. We will not switch the beta to a paid version without the User's consent.
  4. When we start a paid version, we will separately post the disclosures required by the Act on Specified Commercial Transactions on the Website.

Article 6 (License)

  1. We grant the User a non-exclusive, non-transferable, non-sublicensable right to use the App and the Extension, in accordance with these Terms, on Macs the User owns or manages, for personal or business purposes.
  2. Copyrights and other intellectual property rights in the Service belong to us or the rightful owners. These Terms do not transfer any of those rights to the User.
  3. The App may include third-party open-source software. The license of each component applies to that part.

Article 7 (User data)

  1. The App's Records are stored on the User's Mac and we do not receive them. The User keeps all rights in the Records. We do not ask for a transfer of rights in, or a license to use, the Records.
  2. If the User uses features such as syncing to the cloud, the Records are also stored in the cloud service the User uses.
  3. The User is responsible for managing and backing up the Records. Sync features are not a backup, and deleting on one device may also apply to the User's other devices and the cloud.
  4. Information the User sends us, such as an inquiry, is handled in accordance with the Privacy Policy.

Article 8 (User responsibilities)

  1. Users shall use the App on Macs they own or manage. On a Mac provided by an employer, school, or similar organization, follow the organization's permission and rules.
  2. Records, summaries, and exported files can include other people's names or information subject to confidentiality obligations. Sending to or connecting with outside services or other apps, and sharing exported content, are done at the User's own discretion and responsibility, after checking what will be sent.
  3. Summaries and answers written by AI can contain mistakes. When using them in important situations, such as billing, reporting working hours, evaluations, or submissions to third parties, the User shall check the content.
  4. The User is responsible for managing the Mac's login password, keychain, Apple Account, and similar credentials.

Article 9 (Third-Party Services)

  1. When the User uses Third-Party Services together with the Service, the terms of each provider apply.
  2. Third-Party Services are not provided by us. We are not responsible for the content, provision, or changes of Third-Party Services, or for how they handle what the User sends to them. However, where the cause is attributable to us, Article 14 applies.

Article 10 (Prohibited conduct)

Users must not:

  1. Use the Service in violation of laws or public order and morals
  2. Record activity on a Mac used by someone else without that person's consent
  3. Use the App to monitor another person without that person's knowledge
  4. Disassemble, modify, redistribute, or reverse engineer the Service, except as permitted by law
  5. Infringe our rights or the rights of third parties
  6. Interfere with the provision of the Service, such as by placing excessive load on the Website or the update delivery
  7. Engage in conduct equivalent to any of the preceding items

Article 11 (Suspension and termination of use)

  1. If a User violates Article 10, or if we have reasonable grounds to believe a User is likely to, we may, after giving notice in advance, stop providing updates, stop downloads, and terminate the license under these Terms. If there is an urgent need, we may stop first and notify afterwards.
  2. A User may stop using the Service at any time by uninstalling the App.
  3. Even after use ends, the Records remain on the User's Mac. To remove them, delete them as described under "Your controls" in the Privacy Policy.

Article 12 (Changes, interruption, and end of the Service)

  1. We may change the features and specifications to improve the Service.
  2. We may temporarily stop the Website or the update delivery for maintenance, failure, natural disaster, or similar reasons.
  3. We may stop providing the Service after announcing it on the Website with reasonable notice. However, where unavoidable circumstances exist, such as legal requirements or changes to Third-Party Services, we may shorten the notice period or end the Service without notice.
  4. Even if the Service ends, the Records remain on the User's Mac and can be exported.

Article 13 (Disclaimer of warranties)

  1. The Service is provided as is. We do not warrant that the Service is fit for a particular purpose, accurate and complete, uninterrupted, or free of errors, that recording, syncing, and AI summaries and answers will be complete, accurate, and timely, or that the Service will keep working after changes to the operating system or Third-Party Services.
  2. Our liability is governed by Article 14.

Article 14 (Liability)

  1. Except as provided in this Article, we are not liable for any damage that arises for a User in connection with the Service.
  2. Where the User's use is Business Use, we are not liable for damage caused by our negligence (excluding gross negligence).
  3. Where the User is a Consumer, our compensation for damage caused by our negligence (excluding gross negligence) is limited to direct damages that ordinarily arise, and the amount is capped at the total fees for the Service the User paid us in the 12 months ending with the month that includes the day the damage occurred (or 10,000 yen if the User uses the Service free of charge).
  4. Where we have acted with intent or gross negligence, the preceding two paragraphs do not apply, and we will compensate in accordance with the law.
  5. We do not compensate for damages caused by reasons not attributable to us, such as failures or changes of Third-Party Services, defects in hardware, or natural disasters.

Article 15 (User's liability)

If a User causes damage to us by violating these Terms, the User shall compensate us for that damage.

Article 16 (Exclusion of anti-social forces)

  1. The User represents and warrants that the User is not an organized crime group, a member or associate of one, a corporate racketeer, a person who engages in extortion under the pretext of social or political activity, a special intelligence violent group, or any other person equivalent to these (together, "Anti-Social Forces"), and has no relationship with Anti-Social Forces.
  2. If the User violates the preceding paragraph, we may terminate the license under these Terms without notice.

Article 17 (Changes to these Terms)

  1. Under Article 548-4 of the Civil Code, we may change these Terms without individual agreement with Users in the following cases:
    • The change conforms to the general interests of Users
    • The change is not contrary to the purpose of using the Service and is reasonable in light of the necessity of the change, the appropriateness of the changed content, the content of this Article providing that changes may be made, and other circumstances
  2. When we change these Terms, we will announce on the Website that the Terms are being changed, the changed content, and the date the change takes effect, a reasonable period before that date.
  3. A User who cannot accept the change may stop using the Service by uninstalling the App before the effective date.

Article 18 (Notices)

  1. We give notices to Users by posting them on the Website. When individual contact is needed, we send it to the email address the User has given us.
  2. Users contact us by email at support@atolog.day.

Article 19 (Assignment)

  1. Users must not assign their position, rights, or obligations under these Terms to a third party or offer them as security.
  2. If we transfer the business related to the Service to a third party, or it is succeeded to through a merger or similar, we may transfer our position, rights, and obligations under these Terms, and Users' information, to the successor. In that case, we will announce it on the Website in advance.

Article 20 (Severability)

If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions remain in effect.

Article 21 (Survival)

After use of the Service ends, Article 6 paragraph 2, Articles 7, 8, 9, 13 to 15, and 19 to 23 remain in effect.

Article 22 (Governing law and jurisdiction)

  1. These Terms are governed by the laws of Japan.
  2. If litigation between us and a User concerning the Service becomes necessary, the Tokyo District Court is the exclusive agreed court of first instance.

Article 23 (Language)

The Japanese version of these Terms is the governing version. The English version is provided to help you understand them, and where it differs from the Japanese version, the Japanese version prevails.

Article 24 (Provider and contact)

Trade name: yamirai
Contact: support@atolog.day

We will answer without delay on request with the provider's name and address (for a corporation, its name, address, and the name of its representative), and we will publish them on the Website when we start a paid service.