Privacy Policy

Last updated: May 3, 2026

PaperPilot ("PaperPilot," "we," "our") is a Chrome extension and web service that summarizes scientific papers. This page describes what we collect, why, and what we don't do.

1. What we collect

• Account data. When you sign in with Google, we receive your email address and a Supabase-managed user ID. We don't see your Google password.
• Usage data. Each time you generate a summary, we store one row recording your user ID, the canonical paper ID (e.g.arxiv:1706.03762), whether it was a cache hit, and a timestamp. We use these rows to enforce the free-tier monthly quota.
• Paper text (transient). When you click Summarize, the extension sends the paper's text to our API so the language model can produce a summary. We do not persist the paper text after the summary is generated.
• Summaries. Generated summaries are cached server-side keyed by the canonical paper ID, so the next person to request the same paper gets the result instantly. The cached summary is derived from public paper content; it does not contain user-private data.
• Billing data. If you upgrade to Pro, Stripe stores your payment details. We receive only a Stripe customer and subscription ID. We never see your card number.

2. What we don't do

• We do not train language models on your behavior, your queries, or the papers you summarize.
• We do not sell or rent personal data.
• We do not embed advertising trackers, session replay, or browser fingerprinting.

3. Subprocessors

We use the following providers to operate PaperPilot. Each receives only the data described above.

• Supabase: authentication and database (Postgres).
• Stripe: payment processing (Pro subscribers only).
• Anthropic: language model that generates summaries. Paper text is sent to Anthropic for inference and handled under Anthropic's API terms.
• Vercel: application hosting.

4. Cookies and local storage

The extension stores your authentication session inchrome.storage.local so you stay signed in between browsing sessions. The website does not set advertising cookies.

5. Your rights

You can delete your account by emailing kavinvenkat86@gmail.com. We will remove your profile and usage history within seven days. Cached summaries (which contain no personal data) are retained.

6. Contact

Questions or requests: kavinvenkat86@gmail.com.