Privacy Policy

This policy explains what information ClaudeOpus.app ("we", "us") collects when you use this website and its chat feature, how we use it, and the choices you have.

ClaudeOpus.app is an independent, unofficial resource. It is not affiliated with, endorsed by, or operated by Anthropic. "Claude" and "Claude Opus" are trademarks of their respective owner.

Information we collect

Account information. If you sign in, our authentication provider (Clerk) collects your email address and, if you use Google sign-in, your name, profile picture, and Google account identifier. We don't receive or store your password.

Chat messages. When you use the chat, the messages in your conversation are sent to a third-party AI model provider to generate a response. We don't store your conversations in our own database. The AI provider may process and temporarily retain them under its own terms, and that processing may take place outside your country. Don't share sensitive personal information in chat.

Credits and payments. We store your credit balance, linked to your account ID. Payments are handled by Stripe. We receive a record of the purchase (amount, time, and Stripe session ID), but never your card details.

Usage and device data. We use PostHog and Vercel Analytics to understand how the site is used. They collect things like the pages you visit, the buttons you click, your browser and device type, the referring site, and an approximate location derived from your IP address.

Cookies and local storage

We use a small number of cookies and browser storage entries:

• Sign-in session cookies (Clerk) keep you signed in.
• A free-message cookie (signed, httpOnly) counts free messages for visitors who aren't signed in.
• Local storage keeps a client-side copy of that free-message count.
• Analytics identifiers (PostHog) recognise repeat visits.

We don't use advertising cookies.

How we use information

We use this information to:

• provide the chat service and keep track of your credits
• process purchases and prevent abuse
• understand and improve the site
• respond to you when you contact us

We don't sell your personal information.

Service providers

We share data only with the providers that run the service on our behalf:

• Clerk: authentication
• Stripe: payments
• Upstash: credit balance storage
• Vercel: hosting and analytics
• PostHog: product analytics
• Our AI model provider: generating chat responses

Each provider processes data under its own privacy policy.

Data retention

• Account and credit data is kept while your account exists.
• Analytics data is kept according to each provider's retention settings.
• Payment records are kept as long as required for accounting and legal purposes.

Your choices and rights

You can ask us to access, correct, or delete your account data by emailing support@claudeopus.app. Deleting your account removes your sign-in profile and credit balance. Depending on where you live (for example, in the EEA, the UK, or California), you may have additional rights under local law, and we will honour them.

You can also clear cookies and local storage in your browser at any time. If you do, you'll be signed out.

Children

This service isn't directed to children under 13, and we don't knowingly collect their personal information.

Changes

If we change this policy, we'll update the date at the top of this page.

Contact

Questions about privacy: support@claudeopus.app