Privacy Policy

Kozo (“we,” “our,” or “us”) is operated by Jishu Labs LLC. This Privacy Policy explains how we collect, use, disclose and safeguard your information when you use our AI database schema generator at kozo.jishulabs.com (the “Service”). We are committed to protecting your privacy and the confidentiality of the prompts you write and the schemas we generate for you.

We collect the following types of information:

• Account information: Your name, email address and password when you create an account.
• Schema prompts: The plain-English descriptions you submit so Kozo can design a database schema.
• Imported schemas: Existing DDL you paste in to visualize or audit.
• Generated schemas: The tables, keys, indexes, constraints, diagrams, versions and exports Kozo produces for you.
• Usage data: Schemas generated, templates used, export formats requested and how features are used.
• Billing data: When you subscribe to Pro, Stripe processes your payment details. We never store full card numbers.
• Device information: Browser type, operating system and IP address, for security and to keep the Service working.
• Product analytics: Pages visited, clicks, scroll depth, page performance (Core Web Vitals), JavaScript errors and session replays, recorded with PostHog. Replays mask everything you type, and on signed-in workspace pages they mask all on-screen text, so the prompts and schemas in your workspace are not captured.

• To provide and maintain the Service
• To turn your prompts into normalized, indexed, migration-ready schemas
• To keep your schema library, versions and history
• To process subscription payments and manage billing through Stripe
• To send important service and security notices
• To enforce plan limits and prevent abuse
• To improve the quality of the Service, without training models on your content

Everything you submit and everything Kozo generates is scoped to your account and encrypted at rest. We never share your prompts or schemas with other users, use them to train AI models, sell or license them, or make them publicly accessible. You can delete any schema, or your whole account, at any time from Settings.

Your data is stored in Supabase on PostgreSQL, protected by row level security policies so that only your account can read your prompts and schemas. Data is encrypted at rest and sent over TLS. We keep your data for as long as your account is active. You can export your data as JSON at any time, and deleting your account removes its data permanently.

We use the following third-party services to operate Kozo:

• Supabase: Authentication, the PostgreSQL database and application storage.
• Stripe: Subscription billing and payment processing for Pro plans.
• AI model providers (Anthropic, OpenAI): Generating schemas from your prompts. Prompts are sent over the providers' APIs and are not used to train their models.
• Netlify: Hosting and production web infrastructure.
• Resend: Email, including messages you send through the contact form.
• PostHog: Product analytics and session replay, provided by PostHog, Inc. and hosted in the United States. This data is not sold or used for advertising, and it is not used to train AI models.

The full, current list is on the Sub-processors page.

You have the right to access your personal data, export your schemas, correct inaccurate information, delete your account and all associated data, and opt out of non-essential communications. Use Settings, or contact us at the address below.

We use essential cookies for authentication, the demo workspace and session management, and PostHog analytics cookies and local storage (names start with ph_) for product analytics. The analytics storage is set on .jishulabs.com and shared with jishulabs.com and the other Jishu Labs tools. If you declined cookies on jishulabs.com, analytics is not loaded. We do not use advertising cookies. See the Cookie Policy for details.

We may update this Privacy Policy from time to time. We will post the new policy on this page and update the “Last updated” date, and tell you about material changes by email or a notice in the Service.

Questions about this Privacy Policy? Use the contact page or email admin@jishulabs.com.