We closed out July with the biggest release Arbitrage Stalker has ever shipped. One version, more than 30 changes, and we touched every corner of the platform. You can read the raw list on the What's New page, but the list does not tell you why each change matters. This post does.
Lookalike Sellers: we find your next storefronts for you
If you read my storefront tracking post, you know the play: a proven seller's storefront is a live list of products that make money, so you track it and source from their wins. The problem was always step zero. Finding the next storefront worth tracking meant hours of clicking through sellers on listings and judging catalogs by eye.
Lookalike Sellers does that job for you. It lives in the Find menu, and it works from two angles.
Connect your Amazon Seller account and within about a minute you see your closest competitors: the sellers who keep showing up on the same listings as your store. A deep catalog scan reads your live listings and weights the results, so a focused seller running your exact playbook ranks above the everything-store that carries half of Amazon. That scan runs on your own Keepa key at about 6 tokens per sampled listing.
The second angle costs nothing. For every store you already track, we compute similar sellers from storefront data already on the platform. Zero Keepa tokens, and the suggestions refresh with every discovery run.
Every suggestion comes with the evidence behind it and a Track button. Nothing touches your store slots until you accept a suggestion, so browsing lookalikes costs nothing.
Your alerts now police themselves
Alert reliability got a full rebuild this release, because an alert system you cannot trust is worse than no alert system. You stop checking the app because you assume the ping will come, and then the ping dies.
Three changes fix that:
- Restock alerts are live. Your monitors now ping Discord, Slack, and Telegram the moment a tracked seller puts a product back in stock, with a "Back in stock" banner so you can tell a returning product from a fresh find. Guards make sure one restock is exactly one ping. No double-alerts from overlapping scans, no stale-backlog floods.
- You can see delivery health. Every monitor and automated search shows each channel as delivering, failing, or paused, with the exact error when Discord or Slack rejects a message. When a webhook dies, we pause it and email you once, so you find out your alerts stopped even if you never open the page. Paste a replacement, send a test ping, and delivery resumes.
- You control the noise. Each monitor can filter alerts by Apex verdict (Watch or better, Buy or better, Strong Buy only) and set a minimum SatScore. Deals below your bar stay out of your channels while the app keeps collecting everything.
Deep Dive runs a live Deep Scan
Deep Dive can now scan every live offer on a listing and turn each one into a seller card: FBA or FBM, landed price, Buy Box share, storefront size, and a threat read that flags generalist arbitrage sellers, the brand itself, and Amazon. Above the cards you get the listing-level view: seller count, Buy Box concentration, and flags for brand-direct sellers and race-to-the-bottom pricing.
That is the competition check most people skip before buying inventory, compressed into one click. Deep Scans are free on every plan.
The extension does real work now
The Chrome extension picked up three upgrades that turn it from a lookup tool into a working tool:
- Apex on the page. Run a Stalker Score Read or ask Apex a question right on the Amazon listing. Your credit balance shows before you spend, and cached Reads stay free.
- One-click stalking. Amazon storefront pages get a "Track this seller" button, so the moment you find a storefront worth watching, it is in your tracked list.
- Supplier-site matching. On Walmart, Target, Home Depot, Lowe's, Best Buy, and 20+ more retail sites, a "Match on Amazon" button reads the product off the page and shows the top Amazon matches with SatScore, Buy Box price, and a margin preview. Matching is free. No credits, no tokens.
There is also a new Connected Devices page in the app that shows every machine running your extension, and you can sign any of them out in one click.
Your numbers got honest
Three changes in this release exist for one reason: the number on the screen should be the number in your bank account.
All-in costs. Set a per-unit prep cost and an inbound shipping cost once in Settings, and every profit and ROI figure in the app goes net of Amazon fees and your own costs. That covers deal cards, the calculator, saved leads, wholesale reviews, alerts, the CSV exports, and the extension. Most sellers run their numbers gross and find out at settlement what prep cost them. Now the app does that math on every deal, before you buy.
Est. sold/mo. Every deal card shows estimated monthly units sold next to BSR, tagged with its source. An "Amazon" tag means it is Amazon's own units-bought data. An "Est" tag means we inferred it from rank movement, which is the weaker read. You see which one you are trusting, which beats translating BSR in your head. More on why velocity matters in how to find profitable products.
SatScore reads velocity. SatScore now factors in how fast new sellers are joining a listing, not just how many are there. A listing gaining sellers fast loses score while the pile-on is happening, before the price collapses, which is when the warning is worth something.
Wholesale scans stopped needing a babysitter
Upload a price list and walk away. When it finishes, you get an email: rows parsed, rows matched, rows profitable at the current Buy Box, with a link to the review page. If a list fails, the email names what went wrong instead of leaving the page on "working on it" forever.
The review queue got smarter too. Rows that came back "No match" are no longer dead ends: paste the ASIN yourself and that row gets the full treatment, Buy Box, fees, profit, ROI, and gating, same as an automatic match. A Dismiss button clears the rows you have ruled out.
The quality-of-life pile
The rest of the release is a stack of smaller fixes that each remove a daily annoyance:
- Automated searches show their real filters, when they run next, and how the last run ended, so a dead search cannot hide behind an old lead count.
- Apex tests every search it builds against live Keepa data before replying, and repairs a search Keepa rejects instead of giving up.
- Sourcing Locations ranks your retail stores by a revisit score built from your own scan history, so the store worth another trip sits on top.
- The Lead Feed lets you mark a whole page as viewed in one click, dims what you have seen, and gives you an Undo.
- The Profit Pipeline exports to CSV, the Results export gained Apex and SatScore columns, and your recent filters can become one-click saved views.
- A Brand Skip List page shows every brand your eligibility checks skip, and you can manage it yourself.
- Signup got smoother: email plus password, a 6-digit verification code, and a standard $1 card hold that banks approve on the first try.
Everyone starts with 200 credits
Every account now starts with 200 AI credits, and if you already have an account, they are in your balance now. Your daily login bonus scales with your plan: 3 credits a day on Scout, 12 on Hunter, 40 on Predator. Open the app daily and you roughly double what your plan gives you.
If you have been waiting for a reason to run the full workflow, from finding a seller worth stalking to letting Apex score the leads, this release is it. Start your trial and the 200 credits are waiting, or compare what each plan includes on the pricing page.
Let the deals come to you
Arbitrage Stalker watches proven storefronts, scores every lead against your numbers, and tracks each deal to sold and rebuy. Capped feeds keep your finds exclusive.
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