Privacy policy

Last updated: 25 May 2026

What we collect

• Email address — so we can sign you in and tell you about your account.
• Plan + usage counters — which plan you're on, how many messages you've used this cycle. Numbers only, never the message text.
• Razorpay payment records — the transaction id, amount, plan and date of each payment. Required to honour the plan you paid for.
• Anonymous trial counter — a random device id stored in your browser, so the 4-message free trial can't be repeated forever. Not tied to any identity.
• Aggregated site visits — one count per day from writerpi.com, used to draw the admin's growth chart. No individual visitor is identified.

What we do NOT store

• The content of your chat messages.
• The AI's replies to you.
• The contents of any page the extension reads on your behalf.
• Images you upload or scan from a page.

Chat content passes through our backend only as long as it takes to get a reply from the AI provider. After the reply is returned to your browser, the contents are discarded. The database keeps a usage row (tokens, credits, model) for cost accounting — but no message text.

Third parties

To deliver the service we send necessary data to:

• OpenAI and Anthropic — your messages and any attached page / image content are sent here so they can generate a reply. They process the request per their own terms.
• Razorpay — for payments. Razorpay sees the payment details directly. We only ever receive the transaction id and amount, never your card number.
• Resend — for delivering your one-time sign-in code via email.
• Hetzner — our cloud hosting provider, where the backend runs.

We do not share your data with anyone else.

Cookies and local storage

• A single HttpOnly session cookie on writerpi.com (your sign-in JWT, 30-day expiry).
• A few small localStorage values: your chosen theme, your tone, your selected mode.
• A sessionStorage entry that keeps your chat history within the current browser tab — wiped when the tab is closed.

No tracking pixels, no analytics scripts, no third-party cookies.

Your rights

You can:

• Sign out at any time, which clears your session.
• Ask us to delete your account and any data tied to it. Email hello@writerpi.com from the address tied to the account — we'll do it within 7 days.
• Export your payment history from the account page on writerpi.com.

Children

WriterPi is not intended for users under 13. We do not knowingly collect data from children.

Changes to this policy

If we change the policy in a way that materially affects you, we'll email the address on file. The "Last updated" date at the top of this page always reflects the latest version.

Contact

Questions about privacy: hello@writerpi.com.