Terms of Service
Terms of Service
Last Updated: March 16, 2026
The Kael Platform ("Kael" or "Platform") comprises the Kael web application, official website, and any other features, functionalities, or services we provide now or in the future (together, the "Services"). Beijing Yuanhuohua Technology Co., Ltd. ("we," "us," or "our") operate these Services.
This document ("Terms" or "Agreement") is a binding contract between you and us. It applies to your use of the Platform and Services and may be amended from time to time. "You" and "your" mean the person or entity using the Services. Using or accessing the Services means you accept these Terms. Pay special attention to language in bold and in ALL CAPS, which states important legal terms. You may not use the Services unless you accept every term in this Agreement. Rejection of any term requires you to stop using the Services at once.
Use of the Services is also governed by our Privacy Policy and by any other guidelines or rules we publish or notify you of. Those documents are part of this Agreement by reference.
We may change the Services or these Terms when needed—for example, to reflect our practices, legal duties, or business needs. For material changes we will use reasonable means to inform you (e.g., a notice on the Platform or by email to your account). The date at the top of these Terms will be updated when changes take effect.
You should check these terms from time to time. If you keep using the Services after an update takes effect, you accept the new Terms. Rejection of the changes means you must stop using the Services immediately.
2. Access and Use of the Services
So long as you comply with these Terms and the law, we give you a limited, non-exclusive, non-transferable, non-sublicensable, revocable right to access and use the Services only for your personal or internal business use. We keep all rights we do not give you here.
You may not use the Services for any purpose beyond what this Agreement allows. We may change, suspend, or stop any part of the Services at any time, with or without notice, as the law allows.
If you use any client, desktop app, browser extension, or mobile app we provide as part of the Services (the "App"), we give you a limited, non-exclusive, non-transferable, non-sublicensable, revocable right to download, install, and run one copy of the App on a device you own or control, only for your personal or internal business use, subject to these Terms.
These Terms are for individual users and small teams. Team, enterprise, or API offerings may be sold under a separate master agreement or order form ("Enterprise Agreement"). In case of conflict, that Enterprise Agreement governs use of those offerings.
Unless that agreement says otherwise, these Terms still apply to your personal use of the Platform (e.g., your personal Kael account), alongside any terms agreed with your organization.
2.4 Extra Terms for Specific Features
Some parts of the Services (e.g., certain integrations, beta features, or promotions) may have extra terms ("Supplemental Terms"). We will show them when you use that feature. For that feature, Supplemental Terms override these Terms where they differ.
Many Services—including the AI assistant, conversations, and integrations—require an account. When you register, you must give accurate, current, and complete information and keep it up to date. You may use the Services only for lawful purposes and in line with this Agreement.
You must be at least 13 (or the minimum age where you live) to use the services. If you are under 18 (or the age of majority where you live), you may use the Services only with a parent or guardian's permission and supervision. By using the Services you confirm that a parent or guardian has reviewed and agreed to these Terms with you.
3.3 Security and Responsibility for Your Account
You agree that:
- Security. You alone are responsible for keeping your login credentials (e.g., username and password) secure and confidential. Do not share them with anyone.
- Activity. You alone are responsible for everything done through your account. If you use the Services for a business or other entity, you represent that you are authorized to do so, and that use binds that entity.
- Monitoring. We may, but need not, monitor activity under your account. We are not liable for loss or harm from unauthorized access to or use of your account (e.g., hacking or misuse).
We may suspend, terminate, or restrict your account at any time, with or without notice, for any or no reason, including: breach of these Terms or the law; conduct we reasonably believe harms us, other users, or third parties or impairs the Platform or Services or infringes others' rights; lawful requests from authorities; technical or security reasons; or prolonged inactivity.
For permanent suspension or termination, we will try to notify you in advance and give you a chance to back up your data when feasible. We may skip notice if we reasonably believe it would cause harm or we are legally barred from giving it.
Subject to your rights under the law, suspension or termination may limit or remove your access to the account and its data. We do not promise that your content will remain available or recoverable. You are responsible for backing up content you want to keep.
To close your account, contact support@unispark.ai. After termination, we will stop your access and delete or de-identify your information as described in our account deletion and data retention policies.
4. User Conduct and Prohibited Activities
You may use the Services only for lawful purposes and only as these Terms and the law allow. "Applicable laws" means all laws, regulations, rules, codes, and other legal requirements of any government, as amended. You must not use the Services, directly or indirectly:
- To exploit or harm minors in any way;
- To create or spread verifiably false or misleading information with intent to cause harm;
- To create, share, or misuse personally identifiable information in a way that could harm someone;
- In any way that infringes or violates others' intellectual property, privacy, publicity, or other rights;
- To defame, harass, intimidate, threaten, or disparage any person or group;
- For fully automated decisions that could negatively affect a person's legal rights or entitlements;
- To discriminate against or harm people based on personal or social characteristics, online or offline;
- To exploit anyone based on age, status, physical or mental condition, or other vulnerability;
- To give medical advice, diagnoses, treatment, or interpretation of medical results;
- To create or use information for justice administration, law enforcement, immigration, or asylum proceedings.
4.2 Technical and Use Restrictions
You must not, and must not allow or encourage others to:
- Copy, reproduce, modify, translate, adapt, reverse engineer, decompile, disassemble, or derive source code or structure of the Services, or make derivative works from them;
- Remove or alter any copyright, trademark, patent, or other notices in or on the Services;
- Sell, license, sublicense, lease, assign, distribute, or otherwise commercially exploit any part of the Services without our prior written consent;
- Use bots, spiders, scrapers, crawlers, or similar tools to access or collect data from the Services;
- Upload or distribute viruses, malware, ransomware, spyware, or other harmful code;
- Interfere with or try to gain unauthorized access to the Services, our systems or networks, or any user account, including by bypassing security or authentication.
We may remove or disable any content or material at any time, without notice, for any or no reason—including content we consider objectionable, in breach of these Terms or the law, or harmful to the Platform, Services, or users. Violations may lead to civil, criminal, or administrative liability. We may also report to authorities, suspend or terminate your account, and pursue other remedies.
We may set limits on the use of certain features (e.g., requests, projects, storage). Those limits will be described in our product docs, pricing, or usage policy.
We may monitor use (as the law allows) to ensure compliance with these Terms and any limits. If we reasonably believe you have exceeded limits, misused the Services, or breached these Terms, we may, as the law permits: (a) suspend or restrict access to some or all Services; (b) reduce or revoke free or promotional credits; (c) take other steps we consider appropriate. Where the law requires, we will give notice before doing so.
"Input" means what you submit to the Services. "Output" means what the Services generate from your Input. "Content" means Input and Output together. Content can include prompts, text, URLs, code, images, videos, data, documentation, and other materials you submit or receive.
Under the law and your compliance with these Terms:
(a) You keep whatever rights you have in your Input, including intellectual property.
(b) We assign to you whatever rights we may have in Output generated from your Input, to the extent the law allows.
We do not guarantee that Output is unique, protectable, or non-infringing. Other users may receive similar or identical output.
By using the Services and submitting or generating Content, you grant us, our affiliates, service providers, developers, and (where applicable) our partners and end users a non-exclusive, worldwide, royalty-free, sublicensable, transferable, irrevocable, perpetual license to use your Content only as needed to: operate, provide, maintain, improve, and develop the Services; ensure their functionality, security, and integrity; comply with law and legal or law-enforcement requests; and enforce our terms and rights. "Use" includes reproducing, modifying, adapting, publishing, translating, creating derivatives, distributing, displaying, performing, and otherwise exploiting the Content, only for those purposes.
5.4 Your Promises About Content
By using the Services you represent and warrant that: you have all rights, licenses, and permissions needed to provide Input and grant the rights in these Terms; you are solely responsible for your Content and that it complies with these Terms, the law, and our Privacy Policy; we do not guarantee that content generated from your Input is legal, appropriate, accurate, or complete; and your Content and use will not violate law or third-party rights, require us to get extra licenses or pay royalties, or require attribution to any third party.
AI and machine learning have inherent limits. We work to improve accuracy, reliability, and safety, but the Services may produce imprecise, incomplete, outdated, or inaccurate content. You agree:
- Accuracy not guaranteed. Output may not reflect real people, places, facts, or current events. Do not rely on it as fact or as a substitute for professional advice.
- You must verify. You are solely responsible for checking accuracy, completeness, legality, and appropriateness of Output for your use. For decisions that affect the real world, we strongly recommend human review.
- No high-stakes use for individuals. You may not use output about an identifiable person in a way that could have legal, financial, reputational, or material impact on them—including in credit, education, employment, housing, insurance, medical, legal, or similar contexts.
- Views not ours. Output is algorithmic and does not state our views or opinions. References to third parties in Output do not mean we endorse or are affiliated with them.
Depending on where you are and what we offer, some Services may be free and others paid ("Paid Services"). Paid Services may include paid plans, premium features, and other subscriptions or paid options on the Platform. Whether free or paid, you must use the Services in line with these Terms and the law. Scope, features, price, and terms for each Paid Service are on the relevant product or purchase page. You are responsible for reading those before buying or subscribing. Unless the law in your jurisdiction requires otherwise, we may change or discontinue any part of the Services at any time—including features, pricing, billing, or which services we offer. Changes will not take away rights you already have under these Terms and the law for Paid Services you have already bought or subscribed to, unless the change is required by law or needed for legal, technical, or security reasons.
You may buy or subscribe to Paid Services via Apple ID, Google account, or another supported account, paying the applicable fees and taxes in advance in your currency. The platform you use governs payment. Unless you are in the UK, EU, or EEA, or the law otherwise requires, listed prices are excluding tax; we may add applicable taxes. Non-payment of fees or taxes may lead to denial, suspension, or termination of Paid Services. Billing may be: fixed-term (one-time or recurring fee for a set period, e.g., monthly or yearly); or auto-renewing (billed each period until you cancel). For auto-renewal you authorize the platform (e.g., Apple or Google) to store your payment details and charge each renewal and to apply taxes based on your billing and location. Manage or cancel via the platform's subscription settings.
Your plan may be fixed-term (access until the term ends) or auto-renewing (renews for the same period unless you cancel). For auto-renewal, your payment method is charged at the start of each period unless you cancel before the current period ends. To avoid future charges, cancel before the renewal date via your Apple ID, Google account, or other account.
Our subscription services are virtual. Unless your country's law or this Agreement says otherwise, we do not refund subscriptions bought more than 7 days ago, or after you have used them. Refund requests: support@unispark.ai. Refunds go to the payment method used. If you subscribed through Apple, Google, or another platform, their refund rules apply. You may keep access until the platform processes the refund. This does not limit any refund rights you have under the law.
We respect IP and expect you to as well. We may, at our discretion and without notice: remove content that infringes (or is alleged to infringe) IP or publicity rights; block access to the Services; terminate repeat or serious infringers; or take other steps to protect rights and comply with the law.
To report IP infringement or unlawful content, contact support@unispark.ai. A valid notice must include: a physical or electronic signature of the rights holder or authorized person; a description of the work or right and proof of ownership; a description and location of the infringing material; your name, address, phone, and email; and a statement that you believe the use is not authorized.
8.1 Third-Party Accounts and Integrations
You may connect or import content from third-party accounts (e.g., cloud storage, notes, or messaging) ("Third-Party Accounts"). If you do, you authorize us to access, process, and store that information and content as needed to provide the related features.
You are responsible for complying with each third party's terms and privacy policy. We are not responsible for and do not control Third-Party Accounts or their content. Unless we say otherwise, content imported from Third-Party Accounts is treated as your Content under these Terms.
8.2 Third-Party Providers and LLMs
The Services may use third-party services, including third-party large language models ("LLMs") and APIs (e.g., via OpenRouter or others). You must comply with those third parties' terms (e.g., user agreements, content and data processing terms). Disputes with a third party about their services are solely between you and that third party; you release us from all claims and losses related to such disputes. Some Services are powered by third-party LLMs. We do not create or control their output and are not responsible for it. We have no duty to review, monitor, or pre-screen output from third-party LLMs or other third-party services.
The Services and all content and materials are provided "as is" and "as available." WE GIVE NO WARRANTY OF ANY KIND. IN PARTICULAR WE DO NOT WARRANT THAT: (1) THE SERVICES WILL MEET YOUR NEEDS OR ACHIEVE ANY RESULT; (2) USE WILL BE UNINTERRUPTED, TIMELY, SECURE, OR ERROR-FREE OR FREE OF HARMFUL CODE; (3) ANY INFORMATION YOU OBTAIN WILL BE COMPLETE, ACCURATE, OR RELIABLE; (4) ANY IMPLIED WARRANTIES (INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT) APPLY EXCEPT AS EXPRESSLY STATED IN THESE TERMS.
We may change, suspend, withdraw, or restrict the Services at any time for business or operational reasons, without notice.
WE HAVE NO OBLIGATION TO PROVIDE TRANSITION, SUPPORT, OR DISASTER RECOVERY AFTER SUSPENSION OR TERMINATION.
To the fullest extent permitted by law: (1) WE ARE NOT LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES; (2) OUR TOTAL LIABILITY FOR YOUR USE OF THE SERVICES IS LIMITED TO THE GREATER OF THE AMOUNT YOU PAID US IN THE PAST 12 MONTHS OR FIFTY US DOLLARS (USD $50).
YOU AGREE TO INDEMNIFY, DEFEND, AND HOLD HARMLESS KAEL, OUR PARENTS, SUBSIDIARIES, AFFILIATES, LICENSORS, AND THIRD-PARTY PARTNERS, AND THEIR OFFICERS, DIRECTORS, EMPLOYEES, AND AGENTS, FROM ALL CLAIMS, DAMAGES, LOSSES, LIABILITIES, COSTS, AND EXPENSES ARISING FROM YOUR USE OF THE SERVICES OR YOUR BREACH OF THESE TERMS.
12. Disputes and Governing Law
Unless the law of your jurisdiction requires otherwise, any dispute or claim related to these Terms or the Services must be brought in the courts with jurisdiction over the location of Beijing Yuanhuohua Technology Co., Ltd. (e.g., Haidian District, Beijing, People's Republic of China).
TO THE FULLEST EXTENT PERMITTED BY LAW, YOU AND KAEL EACH WAIVE TRIAL BY JURY AND AGREE THAT CLAIMS WILL BE BROUGHT ONLY IN YOUR INDIVIDUAL CAPACITY, NOT AS A CLASS, COLLECTIVE, CONSOLIDATED, OR REPRESENTATIVE ACTION (except where such waiver is not permitted).
Unless the law of your jurisdiction requires otherwise, these Terms and any related dispute are governed by the laws of the People's Republic of China, without regard to conflict of laws.
For questions, complaints, or suggestions about these Terms, contact us by email at support@unispark.ai. We will review and respond as soon as practicable after verifying your identity.