Stop buying into dead listings.
Will it sell? Is it saturated? Will I make money?
Every other tool hands you the same list as 43 other people — then stays silent on the one thing that kills the deal.
You find a product, the margin looks great, you buy 200 units — and by the time they land, eight more sellers have piled on and the price has tanked. Numbers alone never told you the window was already closing. SatScore does.
Live in under a minute
No setup, no spreadsheet. Three steps and the numbers follow you around Amazon.
Add it to Chrome
One click from the Chrome Web Store. Free, no card. Works on every Amazon marketplace.
Sign in (free account)
Create your free Arbitrage Stalker account in about ten seconds — it powers the live data and your lead banks.
Open any Amazon page
The overlay drops in instantly with the numbers, the SatScore, and the verdict. Search pages get a SatScore badge on every tile.
Everything you need on the page you're already on
The full sourcing decision, overlaid on the listing — no tab switching, no copy-paste.
Instant profit & ROI
Real fees, real margin, real break-even on every product page. Exact Amazon fees when you link your seller account. No spreadsheet.
SatScore saturation gauge
A 0–100 score — FRESH, WARMING, HOT or COOKED. Know whether the gold rush is still open or already over before you commit.
BUY / RISKY / SKIP verdict
One color-coded call that folds profit, eligibility, saturation, hazmat and Amazon-on-the-listing into a single glance.
Risk signals built in
Hazmat, oversize, sales velocity, buy-box lock and 'is Amazon competing' — flagged before you spend a cent.
Stalk any seller
One click puts a competitor's whole storefront under surveillance, so you see what they source next — pushed to Discord, Slack or Telegram.
Export to your lead bank
Save a deal to Arbitrage Stalker with cost and source URL in one click, then track it from found to sold.
The thing no other extension has
SatScore: is this product fresh, or already cooked?
One 0–100 score, computed from FBA seller count, offer-count velocity, buy-box price trend and demand stability. It tells you how much profitable runway is left before the crowd floods the listing — the exact failure that wrecks most online-arbitrage buys.
And it doesn't stop at one product — on Amazon search and storefront pages, every tile gets a SatScore badge, so you spot the fresh lanes before you open a single listing.
Lots of profitable runway left. Few sellers, stable price, healthy demand. Move before the crowd shows up.
A price, a rank, a guess.
Profit, saturation and the verdict — instantly.
Sellers are already finding leads with it.
Unprompted, on live calls. Real Amazon sellers in the community, in their own words.
I've been using Arbitrage Stalker a lot lately. I got one storefront in there and, oh my god, it's just a gold mine.
I've used Arbitrage Stalker with a retail monitor and found a couple of items I hadn't looked at before. There were some nice leads. So I'm happy.
More wins land daily in the member community.
Free to install. Free to use. Cancel the paid plan any time.
The on-page profit, fees, SatScore and verdict are free with your account. Add live storefront stalking and crowd alerts whenever you're ready.
Questions, answered
Is it free?+
Yes — free to install, and it works on the free Arbitrage Stalker account. The deeper storefront-monitoring features live on the paid plans, but the on-page profit, fees, SatScore and verdict cost you nothing.
Do I need an account?+
A free Arbitrage Stalker account, yes. It takes about ten seconds the first time you open the extension, and it's what powers the live SatScore, lead banks and seller-stalking.
What data does it read?+
Only Amazon product and search pages — exactly what any shopper sees. It never reads your passwords, payment info, or any other tab. If you link your Amazon Seller account for exact fees, that's a standard SP-API connection you authorize and can revoke any time.
Does it slow Amazon down?+
No. It's a lightweight Manifest V3 extension that injects a single panel and gets out of the way. It dims itself when Amazon opens its own popovers so it never fights for your attention.
Which marketplaces does it work on?+
Amazon US, CA, UK, DE, FR, ES, IT, MX, JP and AU.
How is this different from Keepa or SellerAmp?+
They show you data and margin math. Arbitrage Stalker is the only one that scores saturation (the SatScore), gives you a buy/skip verdict, and lets you put a competitor's storefront under live surveillance — so you know not just the numbers, but whether the window is still open and who else is circling.
Score your next Amazon buy
before you spend a dollar.
Add it to Chrome, create your free account, open any Amazon page. The verdict's waiting.