Privacy Policy

What defthat does

defthat is a tool that generates an AI-personalized starter kit for your project. You describe your idea, pick your tech stack, pay a one-time $5 fee through Stripe, and receive a full kit including CLAUDE.md, a .claude/ folder with permissions and rules, .cursorrules, .env.example, setup.sh, and ROADMAP.md. There are no user accounts, no logins, and no passwords.

What we collect

We collect only what is needed to deliver your purchase:

• Project details and wizard answers. Your project name, a short description, and the choices you make about your stack (framework, database, auth method, etc.). These are sent to the Anthropic API to generate your personalized starter kit files.
• Stripe session ID. A reference ID from Stripe that links your payment to your generated file. We store this alongside your wizard answers so we can verify your purchase and deliver the result.
• Purchase timestamp. When the transaction occurred.

Email addresses

We store the email address you provide during Stripe checkout. This is used to:

• Send you a purchase confirmation email with a link to your files.
• Enable purchase recovery if you lose access to your result page.

We do not use your email for marketing, newsletters, or any other purpose.

What we do not collect

• No credit card numbers or payment details. Stripe handles all payment processing, and card information never touches our servers.
• No account credentials. There is no login system on defthat.

How your data is stored

Your wizard answers and Stripe session ID are stored in a PostgreSQL database hosted on Supabase. The database uses row-level security, and records are only written by our server during the Stripe webhook confirmation flow.

Payment processing is handled entirely by Stripe. Stripe may store your email, payment method, and billing address according to their own privacy policy. We encourage you to review Stripe's privacy policy for details.

localStorage usage

While you work through the wizard, your answers are saved in your browser's localStorage. This keeps your progress if you navigate away and come back. After a successful purchase, your localStorage answers are cleared automatically. This data never leaves your browser until you complete the checkout.

Cookies

defthat does not set any first-party tracking cookies. Standard operational cookies may be set by Next.js (our framework) or Stripe (during checkout) as part of normal functionality. These are not used for advertising or cross-site tracking.

Third-party services

• Stripe processes payments. They receive your payment information and email address.
• Supabase hosts our database. Purchase records (wizard answers, email, Stripe session ID, generated files, timestamp) are stored there.
• Anthropic (Claude API) generates your AI-personalized CLAUDE.md file. Your project name, description, and stack choices are sent to their API. Anthropic does not use API inputs for model training.
• Resend sends your purchase confirmation email. They receive your email address and project name.
• Vercel hosts the application. We use Vercel Analytics for anonymous, privacy-friendly page view metrics (no cookies, no personal data). Standard server logs may be retained by Vercel according to their policies.

Data retention

Purchase records are retained indefinitely so we can verify past transactions and provide support. If you would like your data deleted, contact us and we will remove your record from our database.

Your rights

You can request a copy of any data we hold about you, or ask us to delete it. Email us from the address you used at checkout so we can locate your record. Send requests to defthatapp@gmail.com.

Children

defthat is not directed at children under 13. We do not knowingly collect data from children. If you believe a child has made a purchase through our site, contact us and we will delete the associated record.

Changes to this policy

If we make meaningful changes to this policy, we will update the "Last updated" date at the top of this page. We recommend checking this page if you have questions about how your data is handled.

Contact

For privacy-related questions or data requests, email defthatapp@gmail.com.

Def That App
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