Terms of Use

1. Acceptance and eligibility

By accessing or using the Service, you acknowledge that you have read, understood, and agree to be bound by these Terms and by our Privacy Policy, incorporated here by reference. You must be at least 18 (or the age of majority in your jurisdiction) and able to form a binding contract. If you use the Service for a business or other entity, you represent that you are authorized to bind that entity.

2. What Kerythos Invoice provides

• The website and web maker. The Site presents information about Kerythos Invoice and offers a free tool to create invoices and estimates in your browser, provided for your convenience "as is".
• The mobile app. The App provides invoice and estimate management, time tracking, purchase orders, hosted invoice/estimate links, card and passive payments, and an optional AI assistant ("Lucy"), for freelancers and small businesses.
• The web maker is ephemeral. Invoices and estimates you create on the Site are stored only in your browser (session storage); they are not transmitted to or kept by us and are lost when you close the browser.
• Where data lives. Records you create in the App (invoices, estimates, clients, attachments) are saved to your account so you can access them across devices. They belong to you.

3. Your account

Some actions (printing/sharing on the Site) and all use of the App require a free account created with your email and a password. The account you create on the Site is the same login you use in the App. You are responsible for keeping your credentials confidential and for all activity under your account, and for telling us promptly of any unauthorized use.

4. Acceptable use

You agree not to:

• use the Service for any unlawful, fraudulent, or deceptive purpose, including invoices that misrepresent goods, services, or amounts;
• infringe anyone's intellectual-property, privacy, or other rights;
• upload content that is unlawful, harmful, or that you do not have the right to use (for example, a logo you do not own, or a photograph of someone's property taken without permission);
• use the AI features to produce content that is unlawful, deceptive, hateful, or sexual, or that impersonates a real person or business;
• present an AI-generated image as a photograph of work you actually performed, or as a real customer, result, or before-and-after;
• interfere with, probe, or disrupt the Service, or attempt to gain unauthorized access to it or its systems;
• scrape, copy, resell, or reverse-engineer the Service or its content except as expressly permitted.

5. Your content

You keep all rights to the information you enter (business details, logo, client details, line items). On the Site the web maker is ephemeral, so that information stays in your browser; in the App, your records are stored in your account and remain yours. You are solely responsible for the accuracy and legality of the documents you create and send, including any tax, billing, and disclosure requirements that apply to you.

Marketing images made by AI

The App can build a social-media post from one of your items: an image, plus a caption. The image is created or enhanced by our AI image provider, and the caption is written by our AI text provider. The post is yours to publish, and you are responsible for what you publish.

A generated image is illustrative. It is not a photograph of a job you completed, and you must not present it as one, or as a real customer, a real result, or a before-and-after. If you upload your own photo instead, you confirm you have the right to use it, including the permission of anyone identifiable in it and of the owner of any property it shows.

The finished image is stored at a public link, because the social network you post to has to be able to fetch it. Anyone holding that link can open it. Deleting the post moves it to Trash; deleting it permanently removes the image from our storage. Whatever you have already shared elsewhere is beyond our reach.

We may remove content and withdraw access to the feature from an account that uses it to produce unlawful, deceptive, or abusive material.

6. Subscriptions, billing, and payment

• Plans. Certain features require a paid subscription (Starter, Pro, Business). Prices are shown in the App before you buy.
• How you pay. Subscriptions purchased in the iOS or Android app are billed through your Apple App Store or Google Play account, respectively, and are subject to those stores' terms; you manage or cancel them in your store account. Where offered, subscriptions purchased on the web are processed by our payments provider, Stripe.
• Renewals and refunds. Subscriptions renew automatically for the same period unless cancelled before the renewal date. Fees are non-refundable except where required by law or by the applicable app store's policy. Cancellation takes effect at the end of the current billing period.
• Getting paid. Taking card payments and sending hosted invoices are features of the App, processed by Stripe (including Stripe Connect for payouts). The Site itself does not process payments.

7. Intellectual property

The Service, its design, and the Kerythos AI and Kerythos Invoice names and logos are owned by us or our licensors and protected by United States and international law. We grant you a limited, revocable, non-exclusive, non-transferable license to use the Service for its intended purpose. No other rights are granted; you may not reproduce, distribute, or create derivative works without our prior written consent.

8. Third-party services

The Service relies on trusted third parties, each governed by its own terms and privacy policy:

• Kethosbase — Kerythos AI's own backend platform, providing account, authentication, and data hosting;
• Stripe — card payments and payouts (in the App);
• Apple App Store / Google Play — subscription purchases on mobile;
• Anthropic, PBC — the App's optional AI assistant (Lucy) and the captions on marketing posts;
• Magnific (magnific.com) — the AI image provider that generates and enhances marketing images;
• Google Analytics — usage measurement on the Site (only with your cookie consent);
• Vercel and Cloudflare — hosting and delivery of the Site.

We are not responsible for third-party services or sites we link to.

9. Disclaimers

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. We do not warrant that the Service will be uninterrupted, error-free, or secure. The maker and the App are convenience tools, not legal, tax, or accounting advice; you are responsible for confirming that any document you create complies with the laws and tax rules that apply to you.

10. Limitation of liability

To the fullest extent permitted by law, Kerythos AI and its officers, employees, and agents will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of profits, revenue, data, or goodwill, arising from your use of (or inability to use) the Service. Our total aggregate liability for any claim relating to the Service will not exceed one hundred U.S. dollars (US $100). Some jurisdictions do not allow certain limitations, so some of the above may not apply to you.

11. Indemnification

You agree to indemnify and hold harmless Kerythos AI and its affiliates from any claims, losses, liabilities, and expenses (including reasonable legal fees) arising from your use of the Service, the documents you create or send, your content, or your breach of these Terms, of any law, or of the rights of a third party.

12. Termination and account deletion

We may suspend or terminate your account at our discretion if you violate these Terms. You may delete your account at any time — in the App under Settings, on the web under account settings, or by contacting support@kerythos.ai. Deleting your account removes your stored records, subject to any retention required by law.

13. Notice and opportunity to cure

Before starting any claim arising out of these Terms or your use of the Service, you agree to first notify us in writing at templar@kerythos.ai and allow thirty (30) days for us to investigate and, where appropriate, resolve the matter in good faith. This does not apply where it would cause a claim to become time-barred, and does not prevent either party from seeking urgent injunctive relief.

14. Intellectual-property complaints

If you believe content in the Service infringes a right you own, notify us at templar@kerythos.ai with a description of the work, its location, your contact details, and a good-faith statement that the use is not authorized. We will review and, where appropriate, remove the material.

15. Governing law

These Terms are governed by the laws of the State of California, USA, without regard to its conflict-of-laws rules. You agree to the exclusive jurisdiction and venue of the state and federal courts located in California for any dispute not subject to arbitration or small-claims court.

16. Changes to these Terms

We may update these Terms from time to time. When we do, we will revise the effective date above. Continued use of the Service after changes take effect means you accept the updated Terms.

17. Contact

• Kerythos AI — Los Angeles, California
• Legal: templar@kerythos.ai
• Support: support@kerythos.ai

© 2026 Kerythos AI. All rights reserved.