App & Portal Terms of Use.

01.01 — Acceptance & scope

By creating an account or accessing either product, you agree to these Terms. The Terms supplement (but do not replace) any signed Master Services Agreement (MSA), Statement of Work (SOW), or Mutual Non-Disclosure Agreement (NDA). Where a signed agreement conflicts with these Terms, the signed agreement controls for that specific matter. If you accept on behalf of an entity, you represent that you have authority to bind that entity.

01.02 — What’s covered

These Terms govern the Stacklumen App (the public Beta available at stacklumen.com/app) and the Stacklumen Client Portal (invite-only workspaces for active engagements). Third-party tools we use internally and custom-built applications we ship for clients under an MSA are governed by their own agreements. The privacy, cookie, and communications policies at stacklumen.com/legal do apply here — these Terms add app-specific concerns (warranties, liability, beta status, acceptable use) on top.

01.03 — Eligibility & accounts

You must be at least 18 years old and capable of forming binding contracts. Each person gets one account; shared logins are prohibited. You are responsible for the confidentiality of your credentials and for all activity under your account. For Portal access, the primary contact named in the MSA/SOW is the account administrator and may manage teammate access. Stacklumen may decline, suspend, or revoke any account at its discretion.

02.01 — Beta status (App)

The Stacklumen App is in Beta. It may break, behave unexpectedly, or be removed without notice. No uptime guarantees apply during Beta. Data backups are provided on a best-effort basis but not guaranteed. The Beta is free; we’ll give reasonable advance notice before introducing paid tiers. By using the Beta you grant Stacklumen a perpetual, royalty-free, worldwide license to use any feedback you provide for product improvement.

02.02 — Acceptable use

You agree to:

• Use the products only for their intended purposes and in compliance with applicable law;
• Provide accurate information when creating or updating your account;
• Maintain the confidentiality of any non-public information you receive through the products;
• Treat the Stacklumen team and other users with professional respect;
• Use only the access we’ve provisioned for you.

02.03 — Restrictions

You will not, and will not encourage anyone else to:

• Use the products for unlawful or fraudulent purposes;
• Upload infringing, defamatory, obscene, or otherwise unlawful content;
• Introduce malware, viruses, or other harmful code;
• Probe or test the products’ vulnerability without prior written permission;
• Bypass security features or attempt unauthorized access;
• Reverse-engineer or attempt to derive source code;
• Use automated scrapers, crawlers, or scripts against the products;
• Send unsolicited commercial messages through the products;
• Resell, sublicense, or transfer access without our written consent;
• Remove proprietary notices, marks, or attributions;
• Violate export-control or trade laws.

Violations may result in immediate suspension or termination and may trigger legal action.

03.01 — Customer content

You retain all rights to the data, files, comments, and other content you submit to the products (“Customer Content”). You grant Stacklumen a limited license to host, store, transmit, display, and process Customer Content solely as needed to operate the products and provide the services you’ve requested. You are responsible for ensuring you have the rights necessary to submit Customer Content and for its accuracy and lawfulness.

03.02 — Stacklumen IP & work product

Stacklumen retains all rights, title, and interest in: (a) the products themselves, including all software, designs, templates, and documentation; (b) pre-existing tools, libraries, frameworks, and patterns — including but not limited to Hublumen, Baselumen, our component library, design tokens, and internal templates; and (c) generic patterns, methods, and know-how developed through providing services to clients.

For deliverables produced under an MSA or SOW, ownership transfers to the client upon full payment as specified in that agreement, subject to Stacklumen’s retained right to use generic, non-confidential learnings, anonymized case-study material (with explicit advance consent), and the IP described above.

03.03 — Feedback license

If you send us feedback, suggestions, or feature requests, you grant Stacklumen a perpetual, royalty-free, worldwide license to use that feedback for any purpose, including product improvement. Feedback is provided without any obligation of confidentiality on our part unless we’ve agreed otherwise in writing.

04.01 — Data collected & uses

We collect:

• Account data — name, email, organization, role, authentication metadata;
• Submitted content — files, comments, approvals, project data;
• Usage telemetry — pages viewed, features used, login times;
• Technical data — IP, browser, device, OS, approximate geolocation;
• Billing data — invoice amounts, payment status, last-four card digits (full card numbers are handled by Stripe);
• Communications — emails, support requests, and our replies.

We use this data to: deliver and maintain the services; manage accounts and access; provide customer support; prevent abuse and secure the products; analyze product usage; send operational communications (these aren’t optional while your account is active); produce marketing material or case studies (only with your explicit advance consent); and comply with our legal obligations.

04.02 — Sharing & sub-processors

We use trusted third parties under contract with equivalent confidentiality and security obligations. Current sub-processors include:

• Infrastructure & hosting — Cloudflare (edge, Workers), Webflow Cloud;
• Database & auth — Supabase (Postgres), Clerk (identity);
• Payments — Stripe;
• Transactional email — Resend;
• Analytics & monitoring — Sentry.

Sub-processors may be added or removed over time; the current list is available on request. We may also share data with: legal authorities pursuant to valid legal process; professional advisors (lawyers, accountants) bound by confidentiality; and successor entities in the event of a merger, acquisition, or asset sale (with notice of any material privacy changes). We do not sell personal information and we do not engage in cross-context behavioral advertising.

04.03 — Retention & user rights

Retention. We retain data while your account is active. After a closure request, account-identifying data and submitted content are marked for deletion within 30 days and removed from primary databases and routine backups within 90 days. Encrypted backups roll off on a 35-day rotation. Legal holds may require extended retention for the strict duration of the hold. Aggregated, de-identified analytics data is retained indefinitely.

Your rights. You have the right to access, correct, or delete your personal data (subject to legal-hold exceptions); export it in a machine-readable format; restrict or object to certain processing; withdraw consent where processing is consent-based; and lodge a complaint with your local data-protection authority. Exercise these rights by emailing support@stacklumen.com; we’ll respond within 30 days and may verify your identity first.

04.04 — GDPR & CCPA

If you’re in the EEA, UK, or Switzerland (GDPR): for the data we collect to operate the products, Stacklumen is the data controller. For Customer Content we host on your behalf, Stacklumen is a data processor and you are the controller. We rely on legitimate interests for service delivery and security, contract performance for the services we’ve agreed to provide, and consent where required (e.g., marketing material). You have the rights enumerated in 04.03 above, plus the right to data portability and to object to processing based on legitimate interests.

If you’re a California resident (CCPA/CPRA): you have the right to know what categories of personal information we collect and the purposes; to delete personal information we’ve collected (subject to legal-hold exceptions); to correct inaccurate personal information; and to opt out of the sale or sharing of personal information (we don’t do either). To exercise these rights, email support@stacklumen.com.

05.01 — Fees & invoicing

Fees for the Portal and for engagements are set out in the applicable MSA, SOW, or other written agreement. The Stacklumen App is free during Beta; if we introduce paid tiers, we’ll give reasonable advance notice. Invoices are issued in US dollars unless otherwise agreed, and payment is due as stated on the invoice (typically net-15 for retainers and milestones). Past-due balances may accrue interest at 1.5% per month or the maximum permitted by law, whichever is lower, and may trigger suspension of services until resolved.

05.02 — Refunds & billing disputes

Unless required by law or expressly stated in a signed agreement, fees are non-refundable. For monthly retainers, cancellation by either party ends billing at the close of the current billing cycle; no pro-rata refund applies to mid-cycle cancellations. If you believe a charge is incorrect, you must raise the issue with support@stacklumen.com within 30 days of the invoice date; charges not disputed within that window are deemed accepted.

06.01 — Warranties

The products are provided “AS IS” and “AS AVAILABLE” without warranties of any kind, express, implied, or statutory, including any implied warranties of merchantability, fitness for a particular purpose, non-infringement, and warranties arising from course of dealing or trade usage. Without limiting the foregoing, Stacklumen does not warrant that the products will operate without error, interruption, security incident, or harm; that defects will be discovered or corrected on any specific timeline; that the products will meet any specific requirements you have; that data will be preserved indefinitely; or that results obtained from using the products will be accurate or reliable.

06.02 — Limitation of liability

To the maximum extent permitted by law, Stacklumen and its members, officers, employees, and contractors are not liable for any indirect, incidental, special, consequential, exemplary, or punitive damages — including loss of profits, revenue, goodwill, use, or data — arising from these Terms or your use of the products, even if advised of the possibility. Stacklumen’s cumulative liability under these Terms will not exceed the greater of: (a) the amounts you paid to Stacklumen in the twelve months preceding the event giving rise to the claim, or (b) USD $100.

Force majeure. Neither party is liable for delays or failures caused by events beyond reasonable control, including natural disasters, pandemics, acts of government, war or terrorism, cyberattacks beyond reasonable safeguards, large-scale infrastructure failures, and third-party service disruptions.

06.03 — Indemnification

By you. You will defend, indemnify, and hold harmless Stacklumen and its members, officers, employees, and contractors from and against any third-party claims, damages, losses, and expenses (including reasonable attorneys’ fees) arising out of or related to: your Customer Content; your violation of these Terms or applicable law; or your infringement of any third-party right.

By Stacklumen. Subject to the limitations in 06.02, Stacklumen will defend you against third-party claims alleging that the products, as provided by Stacklumen and used in accordance with these Terms, infringe a US patent, copyright, or trademark, and will pay damages finally awarded by a court or agreed in settlement. This obligation does not apply to claims arising from (i) your use of the products in combination with anything not provided by Stacklumen, (ii) modifications you make or have made on your behalf, or (iii) use after Stacklumen has notified you to stop.

06.04 — SLA (Portal, non-Beta)

For non-Beta Portal customers under an active MSA, Stacklumen targets 99.0% monthly uptime measured against Cloudflare and Supabase availability. Planned maintenance will be announced at least 48 hours in advance where reasonably possible and excluded from uptime calculations. If monthly uptime falls below the target, customers may request a service credit equal to 5% of that month’s Portal fees, by emailing support@stacklumen.com within 30 days of the affected month. Service credits are the sole remedy for missed uptime targets.

07.01 — Suspension & termination

You may close your account at any time by emailing support@stacklumen.com or using the in-product closure flow. Closure does not relieve you of any prior obligations, including outstanding invoices.

Stacklumen may suspend or terminate your access, with or without notice, for: material breach of these Terms; non-payment; abusive or threatening conduct; suspected security incidents; legal or regulatory requirement; or product discontinuation (we’ll give reasonable advance notice where feasible). Upon termination: access is revoked immediately; data is handled per 04.03; you may request an export within 30 days; and outstanding payment obligations plus surviving provisions (IP, releases, liability limits, governing law) remain in effect.

08.01 — Changes to terms

Stacklumen may update these Terms from time to time. We’ll set a new effective date and provide email or in-product notification for material changes, plus a reasonable review period where required by law. Continued use after the new effective date constitutes acceptance. Material changes are those that significantly expand our rights, reduce your rights, or alter how we handle data. Non-material changes (clarifications, formatting, sub-processor swaps, contact updates) may take effect on posting without specific notice.

08.02 — Governing law & general

Governing law. These Terms are governed by the law of the Commonwealth of Kentucky, USA, without regard to conflict-of-laws principles. The UN Convention on Contracts for the International Sale of Goods does not apply. Exclusive venue for any litigation is the state or federal courts located in Fayette County, Kentucky, and you consent to personal jurisdiction there.

Informal resolution first. Before either party initiates formal action, the party with a concern will contact support@stacklumen.com with a description of the dispute and a proposed resolution. The parties will discuss the dispute in good faith for at least 30 days before pursuing litigation. Either party may pursue injunctive or equitable relief without exhausting informal resolution where necessary.

Entire agreement. These Terms, together with any signed MSA, SOW, or NDA, constitute the entire agreement between the parties and supersede prior agreements on the same subject. If any provision is held unenforceable, it will be modified to the minimum extent necessary, and the remaining provisions remain in full force.

No waiver. Failure to enforce any provision is not a waiver of that or any other provision. Assignment. You may not assign these Terms without our written consent; Stacklumen may assign in connection with a merger, acquisition, or asset sale, or as required by law. No partnership. Nothing in these Terms creates a partnership, joint venture, agency, or employment relationship.

Notices. Notices to Stacklumen are effective when sent to support@stacklumen.com. Notices to you are effective when sent by email to the address on file or when posted in-product.

09.01 — How to reach us