Frequently Asked Questions
Everything you need to know about using Underpriced AI to identify, price, and sell your items.
Getting Started
What is Underpriced AI?
Underpriced AI is an AI-powered tool that helps resellers identify items, get instant valuations based on real market data, and create optimized listings for eBay, Poshmark, Mercari, and other marketplaces. Snap a photo and get pricing, comparable sales, and a ready-to-publish listing in seconds.
How do I scan an item?
Take a photo with your phone camera or upload an existing image. Our AI identifies the item, searches real-time sold data across eBay, Poshmark, Mercari, and other platforms, and returns a detailed valuation with price range, comparable sales, and a listing-ready title and description.
Do I need to connect or set up my camera?
No - there's nothing to pair or connect. On the scan screen, tap "Take Photo" and it uses your phone or computer's built-in camera right in the app. The first time, your browser or phone will ask permission to use the camera - tap Allow. If the camera doesn't open or you see a black screen, that's almost always a blocked permission: re-enable camera access for our site in your browser or phone settings, or just tap "Upload" instead to pick a photo you already took. The iOS and Android apps give the smoothest camera experience.
Can I add more than one photo of an item?
Yes — and you should when it helps. A single scan accepts up to 3 photos of the SAME item (for example the front, the back, a label, or a maker's mark). It still counts as just one scan, and the extra angles make identification and pricing noticeably more accurate. So to capture the front and back of something, add both photos to one scan rather than scanning twice.
Do I need to download an app?
Underpriced AI works in your browser on any device - no download required. We also offer a native iOS app on the App Store, an Android app on Google Play, and Chrome and Firefox browser extensions for scanning items while browsing online listings.
Is there a free scan or free trial?
Your first scan is free - no credit card required. It's the full experience: real AI identification, comparable sold listings, a confidence score, and a suggested price. After that, pick a plan (starting at $5/month for 20 scans) or buy a pay-as-you-go credit pack with no subscription. Both unlock every feature.
Can I scan a barcode instead of taking a photo?
Yes. On the scan screen, choose the barcode option to scan a book's ISBN or a CD/vinyl UPC with your camera. We look the title up automatically (Google Books for books, Discogs for music) and then price it from real sold listings, exactly like a photo scan. For everything else - clothing, collectibles, electronics, housewares - a clear photo works best.
Can I scan multiple items at once?
Yes - use Batch Scan to do up to 10 different items at once (one photo each). It's built for clearing a pile fast: add up to 10 photos and we identify and price each item separately. Each item counts as its own scan toward your limit. (This is different from adding several photos of the SAME item to one scan, which still counts as a single scan - see above.)
How do I get started?
Your first scan is free, no card needed. After that, pick a plan and keep scanning immediately, or buy a scan credit pack with no subscription required. All plans include every feature.
Pricing & Accuracy
How accurate is the AI pricing?
Our pricing is based on real recently sold data from eBay, Poshmark, Mercari, Facebook Marketplace, and Depop, plus auction archives for collectibles - not AI guesses. Every scan includes comparable sold listings with clickable links so you can verify prices yourself, plus a confidence indicator so you know which estimates are solid versus thin on data. Accuracy depends on image quality and how common the item is. For high-value or rare items, we recommend cross-referencing the comparable sales we provide.
Where does the pricing data come from?
Pricing data comes from recently sold listings - primarily eBay's completed/sold listings, plus cross-platform sold results from Poshmark, Mercari, Facebook Marketplace, and Depop. We also check active listings to gauge current market supply. This cross-platform approach gives you a more complete picture than any single marketplace.
How is this different from checking eBay sold listings manually?
Manual research typically takes 5-10 minutes per item and only covers one platform. Underpriced AI searches sold data across multiple platforms simultaneously, factors in item condition and specifics from your photo, and delivers results in seconds. It also generates a listing title, description, and suggested price - saving you significant time per item.
Can the AI identify any item?
The AI works best with branded items, electronics, collectibles, vintage goods, clothing, and common household items. Very obscure, handmade, or one-of-a-kind items may get a more general identification. Clear, well-lit photos - and adding multiple angles to one scan - dramatically improve accuracy.
What does the confidence score on my results mean?
Every scan shows a confidence score so you know how much to trust the estimate. Green (80%+) means we found solid, consistent sold data for a clearly identified item. Amber (60-79%) means the data is thinner or the item was harder to pin down. Red (under 60%) means treat it as a rough ballpark and double-check against the comparable sales we list. It's there so a confident-looking number never misleads you.
Why do you show 'sold' and 'asking' prices separately?
Because they're very different numbers. 'Recently sold' is what buyers actually paid - that's what your estimate is built on. 'Currently listed' is what other sellers are asking, which is often higher than items really sell for. We show both so you can see the gap, and when listings are asking noticeably more than things sell for, we flag it right on the result. Your suggested price follows real sales, not wishful asking prices.
Can I re-check an item's price later?
Yes, and it's free. On your Scans list, use 'Re-price' to re-run the latest market data on a past scan - handy when you're about to list something you scanned a while ago. It doesn't use a scan credit. You can re-price each item once every few hours.
Can I correct what the AI identified?
Yes. Open a saved item and use 'Edit Identification' to fix or add details - brand, item name, dimensions/size, condition, and notes. Those details flow into the listing we generate, so your title and description come out more accurate. Editing refines that item; it doesn't automatically re-run the price, so use 'Re-price' if you want a fresh valuation after a big correction.
Does the AI learn from my corrections?
Your inputs shape your own results - details you add, like exact dimensions or condition, are used to identify and price that item more precisely, and your saved corrections improve the listings we generate for you. What we don't do is quietly retrain a global model on your data in the background. If you spot an identification that's consistently off, tell us - that feedback is how we improve the system deliberately.
Plans & Billing
What plans are available?
We offer four paid plans: Starter ($5/month, 20 scans), Pro ($12/month, 50 scans), Pro Plus ($24/month, 120 scans with inventory tools), and Business ($59/month, 325 scans with analytics dashboard). Annual billing saves 20%. Every scan runs on Claude Opus 4.7, Anthropic's most capable vision model. All plans include AI identification, real-time valuations, listing generation, and eBay integration.
What counts as a scan?
Each time you analyze an item - whether by taking a new photo, uploading an image, or re-analyzing a saved item - it counts as one scan toward your monthly limit. Adding multiple photos of the same item to a single scan still counts as just one scan. Viewing previously saved scan results does not use a scan.
Can I change or cancel my plan?
Yes, you can upgrade, downgrade, or cancel your subscription at any time from your account settings. If you cancel, you keep access through the end of your current billing period. Your saved scans and data are preserved.
What's your refund policy?
Your first scan is free, so you can try Underpriced AI before paying. Because of that, monthly plans and scan credit packs are non-refundable - but you can cancel anytime and keep access through the end of the period you've paid for. On annual plans, if you cancel partway through we'll refund the unused full months. If something's genuinely not working for you, reach out - we'll make it right.
What happens when I run out of scans?
When you reach your monthly scan limit, you can purchase additional scan credit packs or upgrade to a higher plan. Credit packs never expire and carry over month to month.
Do you have a referral program?
Yes. Grab your referral link from Settings and share it. Your friend gets 25 bonus scans the moment they sign up, and you get 25 bonus scans when they subscribe or buy a credit pack. There's no limit on how many friends you can refer.
Selling & Listings
Which marketplaces can I list on?
You can publish listings directly to eBay (US, UK, Canada, Australia, Germany, France, Italy, Spain, Netherlands, Belgium) and Bonanza from within the app. The generated titles and descriptions are also optimized for Poshmark, Mercari, and Facebook Marketplace - just copy and paste.
Can I edit the AI-generated listing?
Absolutely. The AI generates a title, description, and suggested price as a starting point. You can edit every field before publishing. Many sellers use the AI output as-is, while others customize it to match their selling style.
Does the listing include keywords for SEO?
Yes. Listing titles and descriptions are optimized with relevant keywords that buyers actually search for. This includes brand names, model numbers, size, color, condition descriptors, and category-specific terms to maximize visibility in marketplace search results.
Can I share a scan result with someone?
Yes. On any scan result, tap 'Share' to get a public link you can send to a buyer, a friend, or post anywhere. The recipient sees the item, the price range, and the recent sold comparables without needing an account. You can share before or after you list.
What happens to my listings if I cancel?
Listings already published to eBay or Bonanza stay live on those platforms - Underpriced AI never removes them. Your saved scan data is also preserved if you decide to resubscribe later.
Inventory & Tracking
Can I track my purchase price and profit?
Yes. When you save a scan, you can record the purchase price. The app calculates estimated profit based on the suggested selling price minus your cost and estimated platform fees (eBay, Poshmark, Mercari, etc.). When items sell on eBay, the actual sale price and fees are auto-synced - no manual entry needed.
What is the Sourcing Calculator?
The 'Should I Buy It?' calculator appears on every scan result. Enter what you'd pay for an item and estimated shipping cost, and it instantly shows your net profit and ROI on each platform (eBay, Poshmark, Mercari, Facebook). It's designed for in-the-field sourcing decisions - scan an item at a thrift store and know if it's profitable before you buy.
Does Underpriced AI sync with eBay automatically?
Yes. When an item you listed through Underpriced AI sells on eBay, we automatically pull the sale price, marketplace fees, and shipping charges via eBay's Fulfillment API. Your profit calculations update automatically - no manual data entry required.
What is the Death Pile Prioritizer?
The 'List Next' feature on your dashboard scores all your unlisted (scanned but not listed) items and ranks them by urgency. It considers how long you've had the item, the category's sell-through rate, profit potential, and item value to tell you exactly what to list first. Items are tagged as URGENT, HIGH, MEDIUM, or LOW priority.
Will I be notified if an item's value changes?
Yes. If a saved item's market value moves 15% or more, we'll send you a price alert so you can re-list or adjust. You get at most one alert email per week (we batch changes so it's never spammy), and you can also enable browser push notifications. Both are controlled under Settings - Value Alerts, where you can turn the email off anytime.
Can I export a tax report?
Yes. On the Analytics page, click 'Tax Report' to download a Schedule C-ready CSV for the current year. It includes per-item revenue, cost of goods sold (COGS), shipping costs, platform fees, other expenses, and net profit - plus summary totals. This makes tax season significantly easier for resellers.
What inventory features are included?
Pro Plus and Business plans include storage locations (organized hierarchically), custom tags for categorization, bulk operations (archive, delete, assign), and advanced filtering. This makes it easy to manage large inventories across multiple sourcing trips.
Is there an analytics dashboard?
Business plan subscribers get a full analytics dashboard with revenue and profit reports, category performance analysis, inventory aging reports, sourcing ROI tracking, and tax report exports. This helps you understand which categories and sourcing methods are most profitable.
Platforms & Devices
Does Underpriced AI work on mobile?
Yes. The web app is fully responsive and works on any smartphone or tablet. We have a dedicated iOS app on the App Store and an Android app on Google Play, both with native camera integration for the fastest scanning experience.
Is there a Chrome extension?
Yes. The Underpriced AI Chrome extension lets you scan items while browsing online listings, thrift store websites, or auction sites. Right-click any product image to get an instant valuation.
Do you support international sellers?
Yes. eBay integration supports 10 countries — US, UK, Canada, Australia, Germany, France, Italy, Spain, Netherlands, Belgium — and pricing data is localized to your marketplace and currency. Italian users get sold-comp data from ebay.it in EUR, UK users from ebay.co.uk in GBP, and so on. The identification and listing features work globally regardless of country.
Security & Privacy
Is my data secure?
Yes. Images are stored securely in encrypted AWS S3 storage. Platform connections use OAuth - we never see or store your marketplace passwords. We support two-factor authentication (2FA) for additional account security.
Can I delete my data?
Yes. You can delete individual scans, disconnect marketplace accounts, or delete your entire account and all associated data from your settings page at any time.
Do you sell my data?
No. We never sell your personal information or scan data to third parties. Your scans and inventory data are yours. See our privacy policy for full details.
Reselling Tips
What are the best items to resell for profit?
Popular high-margin categories include vintage clothing (Levi's, Pendleton, Starter jackets), collectibles (Hot Wheels, Pyrex, depression glass), electronics, designer handbags, and athletic wear (Lululemon, Nike Dunks). Check out our blog for detailed guides on each category.
Where should I source items to resell?
Thrift stores, estate sales, garage sales, flea markets, and online auctions are the most popular sourcing spots. Our Sale Finder feature (Pro Plus and above) helps you find nearby estate sales and auctions based on your ZIP code.
Which marketplace should I sell on?
It depends on what you're selling. eBay is best for electronics, collectibles, and niche items. Poshmark excels for clothing and fashion. Mercari works well for general goods. Facebook Marketplace is ideal for large or local-pickup items. Many successful resellers cross-list on multiple platforms to maximize exposure.
Still have questions?
Our support team is here to help. Reach out and we'll get back to you as soon as possible.