Terms of Service

Last updated: July 28, 2026

1. Agreement to these terms

These Terms of Service (the “Terms”) are a binding agreement between you and Lordhill Digital, LLC, a Wyoming limited liability company (“Lordhill Digital”, “we”, “us”), which operates TheoStack (the “Service”). By creating an account or using the Service, you agree to these Terms. If you do not agree, do not create an account and do not use the Service.

Our Privacy Policy, Cookie Policy, and Copyright / DMCA policy are part of these Terms.

2. Eligibility and your account

• You must be at least 13 years old (16 in the EEA and UK) and able to form a binding contract. If you are under the age of majority where you live, you may only use the Service with the involvement of a parent or guardian who accepts these Terms.
• You can create an account with an email address and password, or by signing in with Google or Apple.
• You must provide accurate information and keep it current, including a working email address we can reach you at.
• An account is for one person. Do not share your credentials or let others use your account. You are responsible for everything that happens under your account.
• Keep your password secure, and tell us at legal@theostack.com promptly if you suspect unauthorized use.

3. What the Service is

TheoStack is a research tool. It lets you ask questions in a chat interface and returns AI-generated answers grounded in a curated library of theological texts and, optionally, in the documents you upload to your own personal library. It cites the passages it draws on so you can check them.

AI-generated responses can be incomplete, out of date, or simply wrong. They can misattribute a quotation, misstate a position, or cite a passage that does not say what the answer claims. Always verify what you read against the cited sources and the primary texts before relying on it, quoting it, teaching from it, or publishing it. You are responsible for how you use the output.

The composition of the curated library, the models we use, and the features of the Service may change over time. We do not guarantee that any particular text, model, or feature will remain available.

4. Not pastoral, legal, or professional advice

The Service does not provide pastoral care, spiritual direction, counselling, legal, medical, financial, or any other professional advice. It is a study and research aid. Using it does not create a pastoral, counselling, attorney- client, or other professional relationship, and nothing you send us is privileged or confidential in that sense. For pastoral, mental-health, legal, or medical questions, consult a qualified person in your own context. If you are in crisis or in danger, contact your local emergency services.

5. Plans, trials, and payment

• Paid plans are billed through Stripe, our payment processor. You enter card details directly with Stripe; we never store your card number.
• We may offer no-card trials. A trial gives you access to paid features for a limited period without entering payment details. When the trial ends, access to paid features stops unless you start a subscription.
• We may issue redemption codes or complimentary access. Any additional terms stated with a code apply, and codes have no cash value and may be revoked if obtained or used improperly.
• Subscriptions are charged in advance for each billing period and renew automatically until you cancel. You can cancel at any time from the billing portal; cancellation takes effect at the end of the period you have already paid for, and you keep access until then.
• Fees are non-refundable except where a refund is required by law. Partial periods are not refunded or pro-rated.
• We may change prices. We will give you notice at least 30 days before a price change applies to your next renewal, and you may cancel before it takes effect.
• Prices exclude taxes unless stated otherwise; you are responsible for any applicable taxes.
• If a payment fails, we may retry it, and we may suspend paid access until payment succeeds.

6. Usage limits

Plans include usage allowances — for example, a monthly allowance of model usage, caps on how much you can upload to your personal library, and a cap on OCR pages processed for scanned documents. If you exceed an allowance, paid features may pause until the next period or until you upgrade. We also apply rate limits to protect the Service. We may adjust allowances and limits, with notice for material reductions to a plan you are paying for.

7. Acceptable use

You agree not to:

• use the Service for anything unlawful, or to produce or distribute unlawful content;
• upload to your personal library any content you do not have the right to use — including infringing, pirated, or unlawfully obtained material — or content that is illegal to possess or distribute;
• scrape, crawl, or bulk-extract the curated library, its metadata, or model outputs, whether manually or by automated means;
• resell, sublicense, or redistribute the curated library or bulk outputs of the Service, or use them to build a competing product, dataset, index, or model;
• reverse engineer the Service, or attempt to circumvent authentication, usage limits, entitlement checks, rate limits, or any other technical protection;
• probe, scan, load-test, or otherwise interfere with the Service or its infrastructure, or introduce malware;
• use the Service to harass, defame, or abuse others, or to generate content that does so;
• share your account, or use another person’s account, or misrepresent who you are;
• present AI-generated output as human-verified scholarship, professional counsel, or pastoral advice.

8. Your content

You keep all rights in the content you submit — your messages, uploads, personal-library files, and project instructions (“Your Content”). We claim no ownership of it.

You grant us a limited, worldwide, non-exclusive, royalty-free licence to host, store, copy, transmit, extract text from, run OCR on, index, embed, and display Your Content solely to operate and provide the Service to you, including for backups, security, and troubleshooting. This licence ends when you delete the content or your account, except for copies in routine backups pending deletion. It does not permit us to train AI models on Your Content, and we do not.

You represent that you have the rights necessary to submit Your Content and to grant this licence.

Output. As between you and us, you may use the responses the Service generates for you, subject to these Terms and to the rights of any third party in quoted material. Output is generated statistically; similar prompts may produce similar output for other users, and we make no claim that output is original or unique to you.

9. The curated library and third-party materials

The curated library contains works that belong to their respective rights-holders. Some are in the public domain; some are used with permission or under licence; some material — such as summaries, structured metadata, and derived passages — is generated by AI from those sources. Nothing in these Terms transfers ownership of any library work to you. Library content is provided for personal research and study inside the Service, and its availability may change without notice. If you believe library content infringes your copyright, see our Copyright / DMCA policy.

10. Third-party services

The Service relies on third parties — including Google and Apple for optional sign-in, and Stripe for payments — and may link to third-party sites. Their terms and privacy policies govern your use of them, and we are not responsible for them.

11. Suspension and termination

You may stop using the Service at any time and may ask us to delete your account (see the Privacy Policy). We may suspend or terminate your account, with notice where practicable, if you breach these Terms, fail to pay, create legal or security risk for us or other users, or are a repeat copyright infringer. On termination your right to use the Service ends immediately, and we may delete Your Content after a reasonable period. Sections that by their nature should survive — including content licences already exercised, disclaimers, limitation of liability, indemnity, and governing law — survive termination.

12. Disclaimers

The Service is provided “as is” and “as available”. To the fullest extent permitted by law, we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose, non-infringement, and any warranty arising from course of dealing or usage of trade. We do not warrant that the Service will be uninterrupted, secure, or error-free, or that any output will be accurate, complete, current, or theologically, historically, or doctrinally sound. Some jurisdictions do not allow the exclusion of certain warranties, so parts of this section may not apply to you.

13. Limitation of liability

To the fullest extent permitted by law, Lordhill Digital and its members, employees, and suppliers will not be liable for any indirect, incidental, special, consequential, punitive, or exemplary damages, or for lost profits, lost data, loss of goodwill, or the cost of substitute services, arising out of or relating to the Service — including reliance on any output — even if we have been advised of the possibility.

Our total aggregate liability for all claims relating to the Service is limited to the total fees you paid us in the twelve (12) months immediately before the event giving rise to the claim. Some jurisdictions do not allow these limitations, so they may not fully apply to you; nothing here limits liability that cannot be limited by law.

14. Indemnity

You agree to indemnify and hold harmless Lordhill Digital from claims, damages, and reasonable legal costs arising from Your Content, your use of the Service, or your breach of these Terms or of any law or third-party right.

15. Governing law and disputes

These Terms are governed by the laws of the State of Wyoming, United States, without regard to its conflict-of-laws rules. You and we agree to the exclusive jurisdiction of the state and federal courts located in Wyoming for any dispute arising out of these Terms or the Service. If you are a consumer resident in a jurisdiction whose law gives you mandatory rights or a mandatory forum, nothing here removes those rights.

16. Changes to these Terms

We may update these Terms as the Service evolves. We will update the “Last updated” date, and for material changes we will give you notice by email or in the app at least 14 days before they take effect. Continuing to use the Service after that means you accept the updated Terms; if you do not accept them, stop using the Service and cancel your subscription.

17. General

• Entire agreement. These Terms, with the policies they incorporate, are the entire agreement between you and us about the Service.
• Severability. If a provision is unenforceable, the rest stays in effect.
• No waiver. Not enforcing a provision is not a waiver of it.
• Assignment. You may not assign these Terms without our consent; we may assign them in connection with a merger, acquisition, or sale of assets.
• Force majeure. Neither party is liable for delays caused by events beyond its reasonable control.

18. Contact

Lordhill Digital, LLC (TheoStack)
Email: legal@theostack.com