Privacy Policy

What FlipRadar does

FlipRadar is a browser extension that reads car listing information from supported marketplace pages (Facebook Marketplace, Craigslist, and OfferUp) and sends it to our backend service for AI-powered deal analysis. The analysis is displayed directly in your browser.

Data we collect

To provide the service, FlipRadar collects and processes the following data:

• Email address — collected when you subscribe through our Stripe checkout. Used to send your access token and for billing communications.
• Access token — a random string we generate for you. Used to authenticate your requests to our backend. Stored locally in your browser.
• ZIP code — optionally provided by you to improve market pricing accuracy. Stored locally in your browser and sent with each analysis request so our AI can price vehicles in your local market.
• Listing text and URL — when you click "Score This Deal," the visible listing content and page URL are sent to our backend for analysis.
• Usage logs — we log basic usage metadata (timestamps, token ID, platform) to monitor service health and enforce rate limits. We do not log listing content or your ZIP code in these logs.

How data flows

When you use FlipRadar:

1. You click "Score This Deal" on a car listing page.
2. The extension sends the listing text, URL, platform name, your ZIP code, and your access token to our backend at web-production-70e5.up.railway.app.
3. Our backend forwards the listing content to Anthropic's Claude API for analysis.
4. Anthropic returns the analysis; our backend returns it to your browser; the panel displays the result.
5. We do not store the listing content or the analysis on our servers.

Third-party services

FlipRadar relies on the following third parties to operate:

• Anthropic — processes listing text to generate the deal analysis. Subject to Anthropic's Privacy Policy.
• Stripe — processes subscription payments. We never see or store your card details. Subject to Stripe's Privacy Policy.
• Resend — delivers transactional emails (welcome emails with your access token). Subject to Resend's Privacy Policy.
• Railway — hosts our backend service and database. Subject to Railway's Privacy Policy.

We also link out to Kelley Blue Book, Carfax, and Google Maps when you click those buttons in the analysis panel. Clicking a link opens that site in a new tab; no data is sent automatically.

Data storage and retention

• Your email and access token are stored in our PostgreSQL database hosted on Railway for as long as your subscription is active.
• Your access token and ZIP code are stored locally in your browser via chrome.storage.sync.
• Listing content and analysis are processed in memory and not stored in our database.
• If you cancel your subscription, your account record and access token are revoked. You can request full deletion of your email from our database at any time (see Contact below).

Permissions

FlipRadar requests the following browser permissions:

• storage — to save your access token and ZIP code locally in your browser.
• host permissions for supported marketplaces (Facebook Marketplace, Craigslist, OfferUp) — to inject the scoring button and read listing content on those pages.
• host permission for our backend (web-production-70e5.up.railway.app) — so the extension can send analysis requests.

FlipRadar does not request access to your browsing history, bookmarks, downloads, or any other browser data.

What we do NOT do

• We do not sell your data to anyone.
• We do not use your data for advertising or retargeting.
• We do not track which listings you view outside of the "Score This Deal" action.
• We do not share your email with third parties beyond the service providers listed above.

Children's privacy

FlipRadar is not directed at children under 13 and does not knowingly collect information from children.

Changes to this policy

We may update this privacy policy from time to time. Material changes will be reflected on this page with an updated date. Continued use of FlipRadar after changes take effect constitutes acceptance of the updated policy.