Last updated: March 6, 2026
finna is a resale pricing tool that helps you identify products and estimate their resale value. We built it to be useful without being invasive. Here's exactly what happens with your data.
Photos you take: When you scan an item, your photo is sent to Google's Gemini AI API for product identification and pricing analysis. The photo is sent directly from your device to Google's servers. We do not store, save, or have access to your photos on any server we operate. Google's use of this data is governed by Google's Gemini API Terms of Service.
Search queries: When looking up eBay sold prices, a text search query (based on the AI's product identification) is sent to SerpAPI. No images are shared with SerpAPI — only the product name as a search query.
Your haul data: All of your scanned items, haul names, prices, costs, and thumbnails are stored locally on your device in your browser's localStorage. This data never leaves your device. We cannot see it, access it, or recover it if you clear it.
We do not collect your name, email, phone number, location, or any personal information. There are no user accounts. There is no server-side database storing your data. We do not use cookies for tracking. We do not sell any data to third parties.
finna includes affiliate links to eBay (via the eBay Partner Network) and Amazon (via Amazon Associates). When you tap "finna sell?" or "finna buy?" or click on a sold comp listing, an affiliate tracking parameter is included in the URL. If you make a purchase through these links, we may earn a small commission at no additional cost to you. These affiliate programs use their own cookies — see eBay's Privacy Policy and Amazon's Privacy Notice for details.
finna also links to Vendoo, a cross-listing tool, via a referral partnership. Clicking "finna list everywhere!" opens Vendoo's website. Vendoo's data practices are governed by their own privacy policy.
When enabled in settings, finna saves a watermarked copy of your product photo to your device's downloads. This photo stays on your device — it is not uploaded anywhere. You can disable this feature in Settings.
finna uses the following third-party services to function:
Google Gemini API — for AI-powered product identification and pricing. Your product photos are processed by Google's AI models.
SerpAPI — for fetching eBay sold listing data. Only text search queries are sent, not images.
Google Fonts / Fontshare — for loading typefaces. These services may log standard web request data (IP address, browser type).
All user data is stored in your browser's localStorage, which is sandboxed to the finna domain and accessible only from your device. localStorage has a ~5MB limit. If you clear your browser data or uninstall the app, your haul data will be permanently deleted. We cannot recover it.
finna is not directed at children under 13. We do not knowingly collect data from children.
We may update this policy as the app evolves. The "last updated" date at the top reflects the most recent revision. Continued use of finna after changes constitutes acceptance of the updated policy.
Questions about this policy? Reach out at