Privacy Policy for SheetAI

Last updated: April 15, 2026

Thank you for using SheetAI ("we," "us," or "our"). This Privacy Policy describes how we collect, use, and protect your information when you use our platform at https://sheet-ai.dev (the "Service").

1. Information We Collect

Account Information: When you create an account, we collect your email address, name, and authentication credentials. If you sign in with Google, we receive your Google profile information.

App Data: When you create apps on our platform, we store your app configurations, spreadsheet data you import, AI chat history, and generated code.

Usage Data: We automatically collect information about how you use the Service, including pages visited, features used, and interaction patterns.

Payment Information: If you subscribe to a paid plan, payment processing is handled by Stripe. We store your Stripe customer ID but do not store credit card numbers.

2. How We Use Your Information

- To provide and maintain the Service
- To process your app creation and deployment requests
- To provide AI-assisted features (chat, code generation)
- To process payments and manage subscriptions
- To send transactional emails (account verification, password resets)
- To improve the Service and develop new features

3. Third-Party Services

We use the following third-party services:

- Supabase: Database and authentication
- Stripe: Payment processing
- Vercel: App hosting and deployment
- Anthropic / OpenAI: AI chat and code generation (your chat messages are sent to these providers)
- Resend: Transactional email delivery

4. Data Retention

We retain your data for as long as your account is active. You can request deletion of your account and associated data by contacting us at yuta.takahashi@nextbyte.jp.

5. Data Security

We implement industry-standard security measures including encryption in transit (TLS), row-level security policies on our database, and secure API key management.

6. Your Rights

You have the right to:
- Access your personal data
- Request correction of inaccurate data
- Request deletion of your data
- Export your data

7. Contact Us

For questions about this Privacy Policy, contact us at yuta.takahashi@nextbyte.jp.