Terms of Service

We may update these Terms from time to time, for example to reflect changes in the law, in the Service, or in how we operate. When we make changes, we will update the "Last updated" date above and, for material changes, give you reasonable advance notice within the Service or by other means.

Changes take effect on the date we state. If you do not agree to a change, you may stop using the Service and, where the change materially affects you, close your account; your continued use after a change takes effect means you accept it. Changes will not apply retroactively to a dispute of which we already have notice.

KairTick helps you compose, send, and receive letters and messages, and offers AI-assisted features that generate suggestions, drafts, and related outputs.

We are continually improving the Service, so we may add, change, or remove features. Where a change materially reduces the core functionality you rely on, we will give reasonable notice where practicable. Some features may be available only to certain users, regions, or platforms.

To use certain features you may need an account, including by signing in through providers such as Apple, Google, WeChat, Facebook, Line, or Kakao. Please provide accurate information and keep it up to date.

You are responsible for activity under your account and for keeping your credentials confidential. Please tell us promptly if you notice unauthorized use. You will not be held responsible for unauthorized use that is not your fault, to the extent required by applicable law.

Your account is for your own use. Please do not transfer or share it without our consent. We may reclaim accounts that have been inactive for a long period, subject to applicable law and after reasonable notice where feasible.

The Service is intended for users who can form a binding contract. It is not directed to children under 13, and in regions with a higher minimum age for online services (for example, up to 16 in parts of the EEA) you must meet that age.

If you are a minor permitted to use the Service under your local law, you must have the consent of your parent or legal guardian, who agrees to be responsible for your use of the Service, including any purchases.

Please use the Service lawfully and respectfully, and comply with the laws that apply to you where you live and where you use the Service, including local content, communication, and public-decency laws. You agree not to create, upload, send, or share content, or engage in conduct, that:

violates any law or the rights of others, including intellectual property, privacy, publicity, reputation, or data-protection rights;

is fraudulent, harassing, threatening, defamatory, obscene, pornographic, hateful, or that exploits or endangers minors;

is spam or unsolicited advertising, or promotes gambling, illegal transactions, or other illegal activities;

impersonates any person or misrepresents your affiliation with anyone;

contains malware, or is intended to disrupt, overburden, or gain unauthorized access to the Service or to circumvent its security or rate limits; or

uses automated means (such as bots, scrapers, or scripts) to access the Service or collect data without our prior written consent.

You are responsible for your conduct and for the content you create or send. When you contact other people through the Service, please make sure you are permitted to reach them.

You keep ownership of the content you create, upload, or send through the Service ("User Content"). You represent that you have the rights necessary to your User Content and that it does not violate these Terms or the rights of others.

You grant us a worldwide, non-exclusive, royalty-free licence to host, store, back up, reproduce, process, adapt, and display your User Content, solely to the extent necessary to operate, provide, secure, and improve the Service and to develop related features. This licence ends when you delete your User Content or close your account, except that residual copies may remain in backups or logs for a limited period, and we may keep de-identified copies that no longer identify you. This licence does not give us the right to sell your User Content or use it for third-party advertising.

We do not routinely monitor User Content and are not responsible for it. However, we may review, refuse, remove, or restrict content or activity that we reasonably believe violates these Terms or the law, or that may harm the Service or any person. Where we remove your content or restrict your access, we will give you notice and the reason where practicable and lawful.

When you choose to use AI-assisted features, you authorize us to transmit the relevant content to third-party AI providers acting on our behalf, so they can generate outputs for you. Our Privacy Policy explains how this content is handled.

AI-generated outputs may be inaccurate, incomplete, or unsuitable, are provided "as is", and should not be relied upon as professional advice. Please review outputs before relying on or sending them, and do not use these features to generate content that breaks the Rules of Conduct.

Apart from User Content, the Service — including its software, text, graphics, logos, trademarks, and interfaces — belongs to Pipaguo Tech or its licensors and is protected by law.

Subject to these Terms, we grant you a limited, revocable, non-exclusive, non-transferable licence to use the Service for your personal, non-commercial purposes. Except where allowed by law, please do not copy, modify, distribute, sell, rent, reverse-engineer, or attempt to extract the source code of the Service.

The Service may integrate with or link to third-party services, such as login, payment, messaging, and analytics providers. Your use of those services is governed by their own terms and policies. We are not responsible for third-party services, and including them does not mean we endorse them.

Some features require payment. Prices and features may change, and we will make current prices clear before you buy. In-app purchases and subscriptions are processed through Apple, Google, or other payment channels and are also subject to their terms and refund policies.

Subscriptions renew automatically until you cancel. You can manage or cancel a subscription at any time through your app-store account settings; cancellation takes effect at the end of the current billing period.

If you are a consumer in the EEA or UK, you have a statutory right to cancel most purchases within 14 days. For digital content or services that begin immediately, you may be asked to agree to immediate performance and to acknowledge that you lose this cancellation right once the service has been fully performed. You may also have mandatory cancellation or refund rights under your local law (for example, under consumer and e-commerce laws in Singapore). Except where the law gives you a right to a refund, payments are non-refundable. Nothing here affects the mandatory consumer-refund rights of your country.

You may stop using the Service and delete your account at any time through the in-app function or by contacting us.

We may suspend, restrict, or terminate your access, or remove content, if you materially or repeatedly breach these Terms or the law, if it is necessary to protect the Service or other people, or as required by law. Where reasonable and lawful, we will give you notice and the reason, and an opportunity to address the issue, unless doing so is impractical, would compromise security or an investigation, or is prohibited by law.

On termination, your right to use the Service ends. Sections that by their nature should survive — including those on User Content licences, intellectual property, disclaimers, limitation of liability, and governing law — will survive.

We provide the Service with reasonable care and skill. To the extent permitted by law, and except for the warranties that your local law requires and that cannot be excluded, the Service is provided "as is" and "as available" without other warranties, and we do not warrant that it will be uninterrupted, error-free, or that content (including User Content and AI outputs) will be accurate or reliable.

If you are a consumer, you have legal rights that these Terms do not affect.

Nothing in these Terms limits or excludes our liability for death or personal injury caused by our negligence, for fraud, or for anything else that cannot lawfully be limited or excluded.

Subject to the above, and to the maximum extent permitted by law, we will not be liable for indirect, incidental, special, consequential, or punitive damages, or for loss of data, profits, or goodwill; and our total liability arising out of or relating to the Service will not exceed the greater of the amount you paid us for the Service in the 12 months before the event giving rise to the liability, or USD 100.

These limits do not apply to liability that cannot be limited under the law of your country of residence, and they do not affect your mandatory consumer rights.

To the extent permitted by law, you agree to cover reasonable losses and costs (including reasonable legal fees) that Pipaguo Tech and its affiliates incur arising from your breach of these Terms, your unlawful use of the Service, or User Content you provide. This does not apply to the extent the loss is caused by us, and it does not increase any liability you would not otherwise have as a consumer under applicable law.

We handle personal information in accordance with our Privacy Policy, which forms part of these Terms. Please read it to understand how we collect, use, share, and protect your information.

These Terms are governed by the laws of Hong Kong SAR, without regard to conflict-of-laws rules, and the courts of Hong Kong SAR will have jurisdiction. However, if you are a consumer: (a) nothing in these Terms deprives you of the protection of the mandatory consumer-protection laws of your country of residence; and (b) you may also bring proceedings in the courts of your country of residence.

If you are a consumer in the EEA, you may also submit disputes to the European Commission’s Online Dispute Resolution platform. We are happy to try to resolve any concern with you directly first — please contact us.

If any provision of these Terms is found invalid or unenforceable, the remaining provisions stay in effect. Our not enforcing a right is not a waiver of it. You may not assign these Terms without our consent; we may assign them in connection with a merger, acquisition, or sale of assets, provided your rights are not reduced.