Terms of Service
BuildStack AI — Last Updated: April 5, 2026
1. Introduction and Acceptance
These Terms of Service ("Terms") govern your access to and use of the BuildStack AI platform (the "Service"), a construction drawing risk analysis tool that uses artificial intelligence to identify potential code compliance issues, missing references, and plan review risks.
By creating an account, accessing, or using the Service, you agree to be bound by these Terms. If you are using the Service on behalf of an organization, you represent that you have authority to bind that organization.
2. Definitions
"Customer Data" — all files, documents, drawings, specifications, project metadata, and other content you upload to or create within the Service.
"AI Outputs" — all analysis results, findings, issues, recommendations, and other outputs generated by the Service's AI capabilities.
"Subscription" — your purchased plan granting access to the Service for a specified term.
3. Account Registration and Security
To use the Service, you must sign in using Google OAuth or another supported authentication method. You are responsible for all activity under your account, maintaining credential confidentiality, and notifying us immediately at privacy@buildstackai.com if you suspect unauthorized access. You must be at least 18 years old to create an account.
4. The Service
BuildStack AI allows users to upload construction drawing PDFs and specification documents for AI-powered analysis. We strive to maintain high availability but do not guarantee uninterrupted or error-free access. We reserve the right to modify, update, or discontinue features with reasonable notice for material changes.
5. AI Outputs — Disclaimers and Limitations
THIS IS A CRITICAL SECTION.
All AI-generated results are for informational purposes only. AI Outputs do NOT constitute professional advice, do NOT replace professional plan review by licensed professionals, may be incomplete or inaccurate, and are not guaranteed to identify all issues in your documents.
You must independently verify all AI Outputs and maintain appropriate human oversight. You bear sole responsibility for all decisions made based on AI Outputs. We are not liable for damages arising from reliance on AI Outputs.
We do not use your Customer Data to train AI models.
6. Intellectual Property
You retain all rights in your Customer Data. By uploading content, you grant us a limited license to process and store it to provide the Service. AI Outputs are provided for your use, but we make no representation that they are original or non-infringing. We retain all rights in the Service, its software, algorithms, and brand assets.
7. Acceptable Use
You agree not to: use the Service unlawfully, upload infringing or malicious content, attempt unauthorized access, interfere with the Service, use automated scripts without consent, share credentials, resell the Service, or use it to build a competing product.
8. Subscription and Payment
Fees are billed in advance (monthly or annually) in U.S. dollars via Stripe. Subscriptions auto-renew unless cancelled. Annual plans may be refunded within 30 days of initial purchase. Monthly plans are non-refundable for partial months. Late payments may result in suspension after 7 days' notice.
9. Data Handling
Customer Data is stored on Google Cloud infrastructure in the United States. Deleted projects are soft-deleted and may be permanently deleted upon request. Upon termination, data is deleted within 90 days. You may export data in CSV or PDF format at any time.
10. Confidentiality
Each party will protect the other's confidential information with reasonable care and use it only as necessary to fulfill obligations under these Terms. Standard exceptions apply for public information, prior knowledge, independent development, and legal requirements.
11. Warranty Disclaimers
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTY OF ANY KIND. We disclaim all warranties including merchantability, fitness for a particular purpose, accuracy, non-infringement, availability, security, and completeness.
12. Limitation of Liability
Neither party shall be liable for indirect, special, incidental, or consequential damages. Our total aggregate liability shall not exceed the fees you paid in the twelve months preceding the claim, or $100, whichever is greater. Exceptions apply for indemnification, unpaid fees, acceptable use violations, and gross negligence or fraud.
13. Indemnification
You agree to indemnify us from claims arising from your use of the Service, breach of Terms, violation of law, your Customer Data, or decisions based on AI Outputs without professional verification. We will indemnify you from claims that the Service infringes valid U.S. patents, copyrights, or trade secrets.
14. Term and Termination
You may terminate by cancelling your subscription or contacting us. We may terminate immediately for material breach or with 30 days' notice for other reasons. Upon termination, your data is retained for 30 days for export, then deleted within 90 days.
15. Governing Law and Dispute Resolution
These Terms are governed by California law. Disputes must first be attempted to resolve informally for 30 days, then by binding arbitration under AAA Commercial Arbitration Rules. You waive any right to participate in class action lawsuits or class-wide arbitration.
16. General Provisions
These Terms and our Privacy Policy constitute the entire agreement. We may update Terms with 30 days' notice for material changes. You may not assign your account without consent. If any provision is unenforceable, it will be modified minimally and remaining provisions continue in effect.
17. Enterprise Terms
Enterprise agreement terms take precedence over these Terms where applicable. Enterprise customers may request a Data Processing Addendum. Organization administrators may manage accounts and enforce policies.
18. Contact Us
Email: privacy@buildstackai.com
