BStalker vs B-Stock Buddy: which tool fits how you buy liquidation?

B-Stock Buddy is a free Chrome extension that adds a profit calculator to auction pages on bstock.com. It works only on B-Stock — it doesn’t cover other liquidation marketplaces, and it doesn’t monitor anything while your browser is closed. You install it, open a B-Stock auction, and it helps you run the numbers on that listing in place.

That’s a genuinely useful job. B-Stock listings involve a bid, a buyer’s premium on many storefronts, and freight — doing that arithmetic by hand for every lot you consider is tedious and error-prone. An in-page calculator removes the friction at exactly the moment you’re deciding whether to bid. If your entire sourcing life happens on bstock.com, a free extension that makes each listing easier to evaluate is hard to argue with.

BStalker (bstalker.com) is a liquidation-auction aggregator: one live feed across every B-Stock retailer storefront — Costco, Walmart, Target, Home Depot, and the rest — plus the other eight US liquidation marketplaces, with comparable cost-per-unit (bid plus freight where the platform quotes it) and saved-search email alerts. You browse and get alerted in BStalker, then click through to bid on the source marketplace.

The core metric is cost per unit — (bid + shipping) ÷ units — computed the same way for every lot on every storefront, so a Costco truckload and a Walmart returns pallet are directly comparable. Saved searches email you when a matching lot appears in a rescan on any covered platform. BStalker never takes bids or payments; every lot links out to the source marketplace. There’s a live sample feed at bstalker.com/sample with no account needed — 23,814 lots are in the feed right now.

The difference is scope and timing. B-Stock Buddy helps you evaluate a lot you’ve already found, on one listing page, while you’re looking at it. BStalker helps you find lots across every B-Stock storefront — including ones you’d never have opened — and tells you about them by email before you go looking.

Put differently: Buddy is a calculator, BStalker is a watchlist. A calculator answers “is this specific B-Stock lot worth it at this price?” A cross-platform feed answers “what’s available everywhere right now, and what just appeared that matches what I sell?” Those questions come up at different points in a sourcing session, which is why the tools don’t really compete — they sit at different steps. The overlap is only the per-lot math, and even there the framing differs: BStalker shows the same cost-per-unit figure for every lot so platforms are comparable side by side, rather than a deep-dive calculation on one listing.

If you source exclusively on B-Stock, buy occasionally rather than daily, and your bottleneck is per-listing math rather than finding listings — use B-Stock Buddy and don’t pay for anything. It’s free, it lives where you already work, and it solves the exact problem it claims to.

More specifically, Buddy alone is enough when: (1) one or two storefronts cover your category and region, so wider coverage adds noise rather than options; (2) you check B-Stock on your own schedule and rarely lose lots to buyers who saw them first; and (3) you’re new enough that $29/mo is better spent on your first pallet. There is no version of this comparison where a free calculator is a bad thing to install. The honest question isn’t “which tool is better” — it’s whether the problems Buddy doesn’t touch (the storefronts you never open, alerts, comparability) are costing you money yet.

Coverage and alerts start mattering when the lots you want are scarce, contested, or scattered. If you sell a specific category — say furniture, tools, or electronics in your region — the same kind of lot appears unpredictably across Costco, Walmart, Target, and the dozens of other B-Stock storefronts, and checking only the one or two you know means competing for one slice of the supply.

Alerts matter for a different reason: timing. Auctions reward the buyer who sees the lot early, and a saved search that emails you when a match appears in a rescan on any covered storefront beats a manual check you run once a day. And cost per unit computed identically across storefronts answers a question a single-listing calculator can’t: is this Costco lot actually cheaper per unit than the similar one ending tonight on the Walmart storefront? If you’re buying weekly or better and your margin comes from finding lots others miss, that’s the job BStalker is built for.

Yes, and it’s a sensible setup. They don’t conflict — one is an extension on bstock.com, the other is a separate website. Use BStalker to watch every B-Stock storefront and get alerted on matches; when an alert points to a lot, click through and let Buddy help with the deep per-listing math there.

BStalker’s job ends at the click-out — it shows you the numbers (current bid, shipping where the platform quotes it, units, cost per unit) and links to the source. It deliberately doesn’t score deals or tell you what to bid; you decide that. So an on-page calculator for the marketplace you land on is a complement, not a replacement. The combined workflow is: a saved search emails you a match → you open the lot on the source marketplace → you run your own numbers → you bid there or pass.