Legal

Terms & Conditions

On this page1. About Kiilln and these Terms

Effective date: 15 September 2026

1. About Kiilln and these Terms

Kiilln is operated by CROWNSTONE PARTNERS LTD, company number 17452360, of Dept 6956, 43 Owston Road, Carcroft, Doncaster, United Kingdom, DN6 8DA. In these Terms, “Kiilln”, “we”, “us” and “our” refer to that company.

Our website is kiilln.com. Contact us at info@kiilln.com.

These Terms govern your access to Kiilln and purchases of Balance. By accepting these Terms when registering or purchasing, you enter into an agreement with us. If you act for a business, you must have authority to bind it; references to “you” then include that business.

Our Acceptable Use Policy, Refund & Cancellation Policy and Digital Delivery & Service Provision Policy form part of this agreement. Our Privacy Policy and Cookie Policy explain how information is handled; accepting these Terms is not consent to optional cookies or unrelated processing.

Specific package details disclosed and agreed at checkout apply to that purchase. The Refund & Cancellation Policy governs refunds and cancellation where it provides more specific terms. Nothing in these documents excludes mandatory rights under applicable law.

2. Definitions and service scope

Services means Kiilln's AI-assisted code generation, project preview and code export features.

Balance means prepaid units that allow you to use eligible features. A Balance Package is a one-off purchase of a stated amount of Balance.

Input means prompts, instructions, code, files and other material you submit. Output means code and other material generated in response. Project Content means your Input, Output and associated project files.

Kiilln provides tools for creating and iterating on code. It does not provide bespoke human development, an acceptance-tested finished application, production hosting or a managed deployment service. A preview helps you inspect work in progress; it is not a promise that an application is ready for public release.

The features, package quantities and prices available to you are described on the website and at checkout. Technical requirements include a compatible browser, an internet connection and any requirements disclosed for the relevant feature. Operating exported code outside Kiilln may require a separate environment, dependencies and services arranged by you.

3. Eligibility and territorial restrictions

You must be at least 18 years old and legally capable of entering into this agreement. You must provide accurate account and purchase information and comply with applicable law.

Kiilln is not available to users located or resident in the following countries, or businesses established there:

  1. Sudan
  2. Democratic Republic of the Congo
  3. Iran
  4. Mali
  5. Myanmar (Burma)
  6. North Korea
  7. South Sudan
  8. Syria
  9. Yemen
  10. Afghanistan
  11. Belarus
  12. Central African Republic
  13. Cuba
  14. Haiti
  15. Iraq
  16. Russia
  17. Somalia
  18. Venezuela
  19. Zimbabwe

Outside these countries, access remains subject to applicable law, sanctions and export restrictions, and payment availability. You must not use Kiilln for or on behalf of a prohibited person or entity, or use inaccurate information, intermediaries or location-masking tools to evade an applicable restriction.

We may request information reasonably necessary to verify eligibility or a payment. If a restriction prevents access, contact us about the affected purchase. Any refund will be assessed under the Refund & Cancellation Policy and applicable law, including restrictions on returning funds where relevant.

4. Accounts and security

Keep your account information current and your login credentials secure. Do not sell, transfer or share your account in a way that allows unauthorised use or bypasses limits. Tell us promptly if you suspect unauthorised access.

You are responsible for activity you authorise and for taking reasonable precautions to protect your account. This does not make you automatically responsible for unauthorised activity caused by our failure to meet our obligations.

You may request account closure by emailing us from the address associated with your account. Export any Project Content you wish to retain and contact us about your Balance before closure. Account closure and personal-data deletion are related but distinct processes; some transaction records may need to be retained as explained in the Privacy Policy.

5. Purchases and payment

We sell Balance Packages as one-off purchases. Purchasing does not create a subscription, recurring charge or automatic top-up. Further purchases require a separate payment authorisation.

We accept Visa and Mastercard, subject to card eligibility and payment authorisation. Purchases are available in EUR, GBP and USD. Checkout identifies the currency and total amount before you pay.

The company is not registered for VAT and does not represent that its charges include UK VAT. Any tax or mandatory charge we are required to collect must be disclosed before payment. Your card issuer may apply its own conversion rate or fees if your card account uses another currency; we do not set those charges.

You must be authorised to use the selected payment method. A payment request or pending card authorisation is not, by itself, acceptance of your order. We accept the order when we confirm acceptance or make the purchased Balance available, whichever happens first. If we cannot accept a paid order, we will refund the amount collected without undue delay.

If a material price or package error is identified before acceptance, we will explain the correct information and let you choose whether to proceed. We will not charge a corrected higher amount without your agreement.

We provide confirmation of an accepted purchase, including the package, price and currency, in a form you can retain. Keep this information for your records.

6. How Balance works

6.1 Use and no expiry

Purchased Balance has no expiry date. It does not expire because a month ends, a subscription is absent or your account is inactive. You do not need a subscription to use it.

Balance can be used only for eligible Kiilln features. It is not a bank balance, deposit, cryptocurrency or investment, does not earn interest and cannot be sold or transferred between users. There is no general cash-redemption facility; refunds expressly available under these policies or applicable law remain available.

No expiry does not mean Kiilln can never close or that access cannot be lawfully restricted. Sections 12 and 13 explain the treatment of unused paid Balance in those circumstances.

6.2 Consumption

Balance pays for the processing associated with eligible actions. Consumption may vary with the action, the request and the amount of processing involved. We will explain the applicable charging basis before you start a chargeable action, including whether a displayed figure is a fixed charge or an estimate.

A generation can consume Balance even if you decide not to use the Output or request another version. Subjective dissatisfaction alone does not establish a technical failure. However, we will correct erroneous deductions and address confirmed service failures as described in the Refund & Cancellation Policy.

We will not automatically buy more Balance or charge your card because your balance runs out. An action may be unavailable or stop when the available balance is insufficient, as explained in the relevant interface.

Usage and purchase records must allow deductions to be attributed to the relevant package. If you dispute a deduction, contact us with the approximate time and affected project or action. You may challenge our records, and we will consider relevant evidence rather than treating our records as conclusive.

6.3 Pricing changes and corrections

New package prices apply to future purchases. We will not retrospectively reduce the amount of Balance purchased or introduce an expiry date for existing paid Balance.

We may update feature charging rates for future actions, with reasonable advance notice of material changes. If a change materially reduces the practical value or usability of your existing paid Balance and you do not accept it, you may request a refund of the unused paid balance affected by the change before using it under the revised terms.

We may correct balances resulting from a billing error, duplicate crediting, an agreed refund or a reversed payment. We will explain material corrections and give you a way to dispute them.

7. Refunds and consumer cancellation

You may request a full refund of a completely unused Balance Package within 14 calendar days, counted from the day after the purchase contract is made. This commercial benefit applies to each purchase separately and does not depend on whether you are a consumer or a business.

The detailed conditions, billing-error remedies and technical-failure remedies are in our Refund & Cancellation Policy.

Crediting an account, registering or signing in does not by itself waive statutory cancellation rights. If you ask us to begin supplying a service during a statutory cancellation period, the consequences depend on the applicable law and the disclosures and express requests obtained. We will not treat a general acceptance of these Terms as a blanket waiver.

8. Your content and generated code

You retain your rights in Input. You must have the permissions needed to submit it and to ask us to process it. Do not upload another person's confidential information or personal data without appropriate authority.

As between you and Kiilln, to the extent we hold transferable intellectual property rights in Output generated for you, we assign those rights to you. You may export, modify and use that Output for lawful personal or commercial purposes, subject to applicable third-party rights and licences.

This does not transfer ownership of Kiilln's platform, underlying technology, branding or pre-existing materials. Open-source components and other third-party materials remain subject to their respective licences. We do not promise that Output is unique, protectable by copyright or free from third-party claims; different users may receive similar results.

You grant us a non-exclusive licence to host, copy, transmit, process and display Project Content only as reasonably necessary to provide, maintain, secure and troubleshoot the Services, investigate abuse and comply with legal obligations. This is not a licence to publish your private projects, advertise with them, sell them or use them for AI training.

The operational licence ends when it is no longer needed for those purposes, subject to lawful retention, backup handling and dispute resolution described in the Privacy Policy. Closing your account does not revoke rights already granted to you in lawfully obtained Output.

9. Privacy and confidentiality of projects

Projects are private by default. We do not use your prompts or project code to train AI models. We do not authorise service providers processing that content on our behalf to use it for their own model training.

Private status means Project Content is not made available to other users or the public by default. It does not prevent necessary processing by authorised personnel and service providers, or disclosure required by law. We restrict that access to purposes described in the Privacy Policy.

You control what happens to code after you export it. If you publish it elsewhere, the privacy and access settings of that destination are your responsibility.

10. AI limitations and your responsibilities

AI-generated code can contain errors, security vulnerabilities, missing functionality, incompatible dependencies or inaccurate explanations. You must review, test and validate Output before relying on it, distributing it or using it in a live environment. Check licences, security, accessibility and applicable legal requirements for your intended application.

Do not treat a working preview as security testing, legal approval or a guarantee of production readiness. Protect credentials and use test data when experimenting. Do not rely on unvalidated Output for decisions or functions that could affect health, safety, legal rights, employment or access to essential services.

These limitations describe the nature of the tool; they do not excuse us from providing the Services with reasonable care and skill or from meeting mandatory standards for services or digital content.

11. Availability and support

We will provide the Services with reasonable care and skill. Access can be interrupted by maintenance, updates, technical incidents or events outside our reasonable control. We do not promise uninterrupted operation, a particular generation time or an agreed service level unless separately confirmed in writing.

Contact info@kiilln.com for support. Provide enough information to identify the issue without sending passwords, full payment-card details or unnecessary sensitive content.

Maintain your own exported copies of important work. Kiilln is not a long-term archival or production backup service. This recommendation does not exclude liability for data loss for which we are legally responsible.

12. Suspension, account closure and remaining Balance

We may restrict or suspend access where reasonably necessary to address suspected fraud, payment reversal, unauthorised access, a material breach of these Terms or the Acceptable Use Policy, or a legal or security requirement. Action will be proportionate to the circumstances.

Where reasonably possible, we will explain the reason and allow you to resolve the issue or challenge the decision. We may act immediately where delay could cause harm, defeat an investigation or breach the law. Email us to request a review.

Suspension does not itself expire your Balance. If access is restored, the legitimate remaining balance remains available. If your account is permanently closed, we will assess outstanding purchase and refund rights before resolving the balance. We will not automatically confiscate an unrelated legitimate paid balance as a penalty. Any lawful deduction or withholding must have an identified basis and be explained where permitted.

If you voluntarily close your account, an unused balance is refundable only where the Refund & Cancellation Policy or applicable law provides for it. Contact us before confirming closure so that we can explain the effect on your balance and exports.

If we permanently end your access for a reason not attributable to your breach or wrongdoing, we will refund the unused paid Balance that you can no longer use. Where lawful and practicable, we will provide a reasonable opportunity to export Project Content before permanent closure. Immediate restriction or removal may be necessary for security or legal reasons.

13. Material service changes and discontinuation

We may develop and change the Services. We will give reasonable advance notice of a change that materially affects the use of existing paid Balance, unless urgent security or legal circumstances require earlier action.

If we discontinue the Services, or remove the relevant functionality so that your unused paid Balance can no longer reasonably be used as purchased, we will offer a suitable alternative only with your agreement or refund the affected unused paid balance. Refunds are based on the amount actually paid for the corresponding unused portion of the package, allowing for discounts and previous refunds, without double recovery.

14. Liability

Nothing in these Terms excludes or limits liability for fraud, fraudulent misrepresentation, death or personal injury caused by negligence, or any liability or remedy that cannot lawfully be excluded or limited.

If you are a consumer: we are responsible for loss or damage that is a foreseeable result of our breach of contract or failure to use reasonable care and skill. Your statutory rights concerning services and digital content remain unaffected. We do not impose the business liability cap below on consumer claims. We are not responsible for business losses arising from your use as a consumer, except where the law requires otherwise.

If you use Kiilln for business purposes: subject to the first paragraph of this section, we are not liable for indirect or consequential loss, or lost profits, revenue, anticipated savings, business opportunities or goodwill. Our aggregate liability arising from the Services is limited to the greater of GBP 100 and the total fees you paid us during the 12 months before the event giving rise to the claim. This cap does not reduce an express obligation to refund an unused paid balance or correct an erroneous charge.

Neither party is responsible for delay caused by events beyond its reasonable control where it takes reasonable steps to reduce the effects. This does not permit us to retain payment for services we cannot supply where a refund is due.

15. Complaints, law and disputes

Send complaints to info@kiilln.com, identifying the account, relevant purchase or project and the outcome you seek. We will investigate and provide a response without undue delay. You do not have to complete our complaints process before exercising a statutory remedy or contacting an appropriate authority.

These Terms are governed by the law of England and Wales. For business customers, the courts of England and Wales have exclusive jurisdiction.

For consumers, this choice of law does not deprive you of mandatory protections of the law of your habitual residence where those protections apply. You may bring proceedings in any court available to you under applicable consumer jurisdiction rules. Nothing requires a consumer to submit exclusively to an English court where that would remove a mandatory right.

16. Changes and general provisions

We may update these Terms to reflect legal requirements or changes to the Services. We will notify you of material changes affecting an existing contractual relationship with reasonable advance notice, except where earlier action is necessary for legal or security reasons. Changes do not retrospectively remove accrued rights or alter completed purchases. Where fresh acceptance is required, we will obtain it.

If you do not accept a material change affecting unused paid Balance, contact us before using it under the revised terms. The remedies in sections 6 and 13 apply where appropriate.

If a provision is unenforceable, the remaining provisions continue to apply. A delay in enforcing a right is not a waiver. We may transfer this agreement as part of a lawful business transfer only where your rights are not materially reduced; we will notify you where required. No transfer removes our responsibility for obligations that remain ours under applicable law.

For all questions about these Terms, contact CROWNSTONE PARTNERS LTD, Dept 6956, 43 Owston Road, Carcroft, Doncaster, United Kingdom, DN6 8DA, or info@kiilln.com.