Privacy Policy
Last updated: May 8, 2026
1. Who We Are
Comp Buddy ("we," "our," or "us") is a Chrome browser extension that provides pricing intelligence for the secondary market. It works across eBay, Facebook Marketplace, and Whatnot — helping users see real value, make smarter offers, and find flips using eBay sold data. Our website is compbuddylive.com.
2. Information We Collect
Account Information: If you create an account, we collect your email address and an encrypted password via our authentication provider (Supabase). Some eBay features work without an account.
Listing Data: When you visit a supported listing page, the extension reads publicly visible information from the page (such as item titles, prices, and listing details) to provide pricing intelligence. On Facebook Marketplace, listing titles are read automatically to compare against eBay sold data.
Video Frame Data: When you click the "Scan Item" button on Whatnot (paid feature), the extension captures a single frame from the currently playing video and sends it to our server for AI-based item identification. This image is processed in real-time and is not stored after the response is returned.
AI Image Scans: On Facebook Marketplace, paid users may trigger an AI image scan that sends the listing image to our server for more accurate item identification. These images are processed in real-time and are not stored.
Snip Tool: The Snip Tool (activated via the popup button or Alt+S keyboard shortcut) lets you visually select any area on your screen. The selected region is captured as an image and sent to our server for AI-based item identification, then used to search for comparable listings. The captured image is processed in real-time and is not stored. The Snip Tool only activates when you explicitly trigger it — it never captures your screen in the background.
Search Queries: If you use the Check Comps or manual search features, we receive the text query you enter. Queries are used solely to fetch relevant eBay listings and are not stored long-term.
Usage Data: We track basic scan and search counts locally in your browser (using Chrome's storage API) to manage tier limits. This data stays on your device.
3. Information We Do NOT Collect
- We do not capture video frames automatically or in the background
- We do not record or monitor your browsing history
- We do not collect personal information beyond your email address
- We do not use cookies for tracking or advertising
- We do not sell, rent, or share your data with third parties for marketing
4. How We Use Your Information
- Pricing Intelligence: Listing titles and prices from eBay, Facebook Marketplace, and Whatnot are used to fetch comparable sold data and calculate offer suggestions
- Item Identification: Video frames (Whatnot) and listing images (Facebook Marketplace AI scan) are sent to our AI service to identify items — processed in real-time and immediately discarded
- Comp Lookup: Identified items or manual queries are used to search eBay sold listings for price comparison
- Account Management: Your email is used for authentication and account-related communications
- Service Improvement: Aggregated, anonymized usage statistics may be used to improve the service
5. Data Storage & Security
Video frames are processed in memory and discarded immediately after generating a response. They are never written to disk or stored in a database.
Account credentials are managed by Supabase with industry-standard encryption. We do not have access to your plain-text password.
All data transmission between the extension and our servers uses HTTPS encryption.
6. Third-Party Services
We use the following third-party services:
- Supabase — Authentication and user account management (Privacy Policy)
- Cloudflare Workers — API hosting and processing (Privacy Policy)
- eBay / eBay Partner Network — Active listing data for price comparisons. Some outbound links to eBay are affiliate links through the eBay Partner Network. If you click an affiliate link and make a purchase, we may earn a small commission at no extra cost to you. This helps support the free features of Comp Buddy.
- OpenAI — AI-based item identification from video frames and images. Images sent to OpenAI are processed via their API and are not used to train their models per OpenAI's API data usage policy (Privacy Policy)
- Stripe — Payment processing for subscriptions. We never see or store your credit card number — all payment data is handled directly by Stripe (Privacy Policy)
- Resend — Transactional email delivery for account-related communications (Privacy Policy)
7. Data Retention
Video frame data and AI image scans: Not retained (processed and discarded in real-time).
Listing data (titles, prices): Used only for the current session and not stored on our servers.
Account data: Retained as long as your account is active. You may request deletion at any time.
Local storage data (scan counts, tier info): Stored on your device only.
8. Your Rights
You have the right to:
- Access the personal data we hold about you
- Request deletion of your account and all associated data (email contact@compbuddylive.com — we will process deletion requests within 30 days)
- Uninstall the extension at any time, which removes all local data
- Opt out of marketing emails at any time via the unsubscribe link in any email
For California residents: Under the California Consumer Privacy Act (CCPA), you have additional rights including the right to know what personal information is collected, request deletion, and opt out of the sale of personal information. We do not sell personal information.
8a. Data Breach Notification
In the unlikely event of a data breach that affects your personal information, we will notify affected users via email within 72 hours of becoming aware of the breach. We will also post a notice on our website describing the nature of the breach, the data involved, and the steps we are taking to address it.
9. Children's Privacy
Comp Buddy is not intended for use by children under the age of 13. We do not knowingly collect personal information from children.
10. Changes to This Policy
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. Continued use of the extension after changes constitutes acceptance of the revised policy.
11. Contact Us
If you have any questions about this Privacy Policy or your data, contact us at: