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Terms of Service — Hecate 4

Effective Date: 2026-03-30 · Last Updated: 2026-07-25

These Terms of Service ("Terms") form a binding agreement between you and Marco Polo Research Lab LLC, a California limited liability company ("MPR Lab", "Company", "we", "our", "us"), for access to and use of Hecate 4 (the "Service"). By using the Service, you agree to these Terms.

1. Eligibility and Account Use

2. Service Description

Hecate 4 provides AI-assisted crossword, word search, Kriss Kross, and Codeword generation, puzzle play, sharing features, and account and billing tools. Features and pricing may change over time.

3. Acceptable Use

4. User Content and Generated Output

You retain rights to prompts and other content you submit. You grant us a limited license to store, process, display, and transmit that content as needed to provide and secure the Service.

AI-generated crossword content may be incomplete, inaccurate, or unsuitable in some contexts. You are responsible for reviewing generated or shared content before relying on it or distributing it.

5. Pricing, Credits, and Payments

Some generation or premium features require credits. Web credit-pack purchases are processed through Paddle. Credit-pack purchases made in the iOS or Android app are processed by Apple or Google. Store prices may be localized and may include applicable taxes.

Hecate Pro is a monthly auto-renewing subscription sold through Apple or Google and managed through RevenueCat. Each successful paid initial month or renewal grants 600 Hecate 4 credits. Granted credits do not expire when you cancel; cancellation only stops future subscription renewals and monthly grants.

Hecate Pro renews until you cancel it through the subscription settings for the store where you purchased it. Deleting your Hecate 4 account does not cancel a store subscription. Cancel before account deletion to prevent future charges. Trials, promotional periods, failed renewals, and other non-paid periods do not grant monthly credits unless the purchase screen explicitly states otherwise.

For web transactions, Paddle.com is our online reseller and Merchant of Record, provides transaction support, and handles returns for Paddle-processed purchases. Those transactions are also subject to Paddle's buyer terms, tax handling, billing notices, and compliance controls.

6. Refund Policy

The Service may automatically restore credits for eligible technical failures according to in-product behavior. Except where required by law, required by merchant-of-record terms, or approved in special circumstances, completed checkout charges are non-refundable.

To request billing support or refund review, contact support@mprlab.com. Refunds for Apple App Store and Google Play purchases are controlled by the applicable store and must be requested through that store. For Paddle-processed transactions, any approved refund must be issued through Paddle and remains subject to Paddle's buyer terms and applicable law.

7. Third-Party Services

The Service depends on third-party services such as authentication providers, hosting, analytics, billing infrastructure, and payment processors. We are not responsible for third-party downtime or actions beyond our contractual obligations.

8. Availability and Changes

We may update, suspend, or discontinue features at any time, including to improve security, comply with legal obligations, or maintain platform integrity.

9. Suspension and Termination

We may suspend or terminate access if you violate these Terms, create legal or security risk, or misuse the Service. You may stop using the Service at any time.

10. Intellectual Property

The Service software, design, branding, and related materials are proprietary to Marco Polo Research Lab LLC and its licensors and are protected by applicable intellectual property laws.

11. Disclaimers

The Service is provided "as is" and "as available" without warranties of any kind. We do not guarantee uninterrupted availability, error-free operation, or that generated content will meet any specific requirement.

12. Limitation of Liability

To the maximum extent permitted by law, Marco Polo Research Lab LLC is not liable for indirect, incidental, special, consequential, or punitive damages, or for lost profits, revenue, data, or goodwill arising from use of the Service.

13. Contact and Notices

For legal notices, billing questions, or Terms questions, contact support@mprlab.com or visit mprlab.com.