Prelo alternative: know what it sold for before you list it
Prelo is a bulk lister: drop a folder of photos and it sorts them by item, prices each against similar eBay listings, writes the copy and publishes to eBay. Underpriced AI prices the photo from real eBay sold comps first, then drafts, crosslists and tracks the sale. First scan free.
Underpriced AI vs Prelo
| Feature | Underpriced AI | Prelo |
|---|---|---|
| Identify any item from a photo | Groups a folder of photos by item, then identifies each | |
| Barcode scanning (books, CDs, vinyl) | Not stated | |
| Real sold comps with clickable links to verify | Priced against comparable eBay listings (asking prices, per its tutorial); sold comps not stated | |
| Sold data across eBay, Poshmark, Mercari | eBay comparables; other marketplaces not stated | |
| Live active listings | Comparable eBay listings | |
| Market saturation + category sell-through | Not stated | |
| Platform fee / take-home calculator | Free fee calculators for eBay, Mercari, Poshmark, Depop, Etsy, Facebook, Grailed, Whatnot, Vestiaire | |
| Weekly portfolio email: value, what sold, what's trending | Not stated | |
| AI-generated listing title + description | Title, description, category and price per item | |
| Direct eBay publishing (10 markets) | Publishes to eBay (Trading API) | |
| Bonanza publishing | Not stated | |
| Cross-listing (one-click autofill) | eBay, Facebook, Poshmark, Mercari, Depop, Vinted, Whatnot, OfferUp, Etsy + | Poshmark, Mercari, Depop, Facebook; Crosslist plan $7.99/ |
| One-tap reprice / refresh value | Not stated | |
| Inventory management (death pile, storage, tags) | Warehouse and inventory tracking on Pro ($34.99/ | |
| Purchase price + profit/loss tracking | Free profit calculator; tracking not stated | |
| Analytics dashboard (ROI, aging, sourcing) | Sales analytics on Starter and above | |
| Estate & garage sale finder | Not stated | |
| Platforms | iOS, Android, Web, extension | Web (phone or desktop); browser extension on Crosslist; native apps not stated |
| AI model | Claude Opus 5.5 | Vision model (undisclosed) |
| Free first scan, no card | 20 free listings at signup, no card; Scout lookup needs no signup | |
| Sold prices from more than one source, with automatic failover | Not stated | |
| Works inside ChatGPT, Claude and coding assistants (MCP) | Claude and ChatGPT on Pro ($34.99/ | |
| Scan packs, no subscription required | 5 scans for $3 | Pay-Go $0.25 a listing, no monthly fee |
| eBay Promoted Listings at your own ad rate | Not stated | |
| Pricing accuracy measured against real sales and published | Not stated | |
| Starting price | Free scan, then $5/mo or a $3 5-scan pack | 20 free listings; then $0.25 a listing, or Starter $12.99/mo for 80; Volume Unlimited $24.99/mo |
Prelo facts checked 2026-10-09 against listprelo.com. “Not stated” means their public material does not say; it is not a no. Their features and prices can change.
What Prelo does well
The photo pile. Its vision model groups 200 mixed photos into items in about thirty seconds. Every item gets a title, description, category and suggested price, and publishes to eBay through the official Trading API. Twenty listings are free with no card and never expire, and Pay-Go is $0.25 a listing.
Where Underpriced AI goes further
Prelo prices against comparable listings, which its own tutorial calls asking prices. An asking price is what a seller hoped for; a sold price is what a buyer paid, and the gap decides whether a $12 thrift find is a flip or a donation. Underpriced AI shows the real eBay sold comps behind every estimate, a calibrated range and the net after fees. Then it drafts the listing, crosslists, tracks the profit, and publishes its measured pricing accuracy.
Choose Underpriced AI if you
- Decide in the aisle whether to buy at all
- Want sold comps you can open, not asking prices
- Track what each item cost and what it netted
- Ask Claude or ChatGPT what a find is worth, no account needed
Prelo may fit if you
- List a hundred items from one photo dump
- Clear a house and want listings grouped automatically
- Have an eBay store to put on Poshmark, Mercari and Depop
- Want a per-listing price with no monthly fee
Common questions
How is Underpriced AI different from Prelo?
Prelo is built for volume: drop 200 photos, it groups them by item, identifies each, suggests a price from comparable eBay listings, writes the listing and publishes to eBay. Underpriced AI starts at the buy decision: the photo returns real eBay sold comps you can open and the net after fees, then the listing, crosslisting and profit tracking.
What does Prelo cost compared to Underpriced AI?
On listprelo.com/pricing on 2026-10-09: 20 free listings with no card, then Pay-Go at $0.25 a listing, Starter $12.99 a month for 80, Volume Unlimited $24.99, Pro $34.99 with AI agent access, and a $7.99 Crosslist plan. Underpriced AI: free first scan, then Starter $5 a month for 15 scans, Pro $15 for 75, Pro Plus $29 for 200, or a $3 pack of 5 scans.
Does Prelo use sold prices?
Its pages say each item is priced against similar eBay listings, and its tutorial explains why asking prices are a guide rather than a promise. Sold comps are not stated, so the table says so. Underpriced AI prices from completed sales and shows you each one.
Do both work inside Claude?
Yes. Prelo's home page says you can connect Claude or ChatGPT on its Pro plan. Underpriced AI's connector prices a photo or a description from sold comps and drafts the eBay listing. Neither publishes from the chat.
Which one crosslists?
Both. Prelo crosslists to Poshmark, Mercari, Depop and Facebook. Underpriced AI's extension fills Poshmark, Mercari, Facebook, Depop, Vinted, Whatnot, OfferUp and Etsy from one listing, and eBay and Bonanza publish directly.
See what it really sold for
Your first scan is free. No card.
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