Privacy Policy
Last updated: December 28, 2025
Introduction
StacksFinder ("we," "us," or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Service.
By using StacksFinder, you agree to the collection and use of information in accordance with this policy.
Information We Collect
Information You Provide
- Account Information Email address, name (optional), and password when you register
- Project Data Project requirements, constraints, and preferences you input into the Service
- Uploaded Documents Specification documents you upload for analysis (Spec Analyzer feature)
- Payment Information Billing details processed securely by our payment provider (Paddle)
- Communications Messages you send to us for support or feedback
Information Collected Automatically
- Usage Data Pages visited, features used, time spent on the Service
- Device Information Browser type, operating system, device type
- Log Data IP address, access times, referring URLs
- Cookies Session cookies for authentication and preferences
How We Use Your Information
We use the collected information to:
- Provide, maintain, and improve the Service
- Process your requests and generate technology recommendations
- Analyze uploaded documents to extract technical constraints
- Process payments and manage subscriptions
- Send transactional emails (account confirmation, password reset, billing)
- Respond to your inquiries and provide customer support
- Monitor and analyze usage patterns to improve user experience
- Detect and prevent fraud, abuse, and security issues
- Comply with legal obligations
AI Processing
Our Service uses artificial intelligence to analyze your project requirements and generate recommendations. When you use features like the Spec Analyzer:
- Your uploaded documents are processed by our AI systems
- Document content is not used to train AI models
- Extracted data is stored securely and associated with your account
- You may delete your documents and extracted data at any time
We use third-party AI providers (OpenAI, Anthropic) for processing. These providers are bound by data processing agreements and do not retain your data beyond the processing request.
Data Retention
We retain your data as follows:
You may request deletion of your data at any time by contacting us or using account settings.
Data Security
We implement appropriate security measures to protect your data:
- Encryption in transit (TLS/HTTPS) and at rest
- Secure password hashing (Argon2id)
- Regular security audits and updates
- Access controls and authentication
- Secure hosting infrastructure
While we strive to protect your data, no method of transmission or storage is 100% secure. You are responsible for maintaining the security of your account credentials.
Your Rights (GDPR)
If you are in the European Economic Area, you have the right to:
To exercise these rights, contact us at [email protected].
International Data Transfers
Your data may be transferred to and processed in countries outside your residence. We ensure appropriate safeguards are in place, including Standard Contractual Clauses approved by the European Commission.
Children's Privacy
The Service is not intended for individuals under 18 years of age. We do not knowingly collect personal information from children. If you believe we have collected data from a child, please contact us immediately.
Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of material changes by email or by posting a notice on the Service. Your continued use after changes constitutes acceptance of the updated policy.
Contact Us
For privacy-related inquiries: