Seller software for wholesale & online arbitrage amazon.com · US only
Some of last month's profit never existed.
Remworth reads your profit from the deposits Amazon actually paid you — order by order, statement by statement. Every figure on your dashboard traces to a settlement line or a cost you recorded. And when a number can't be proven yet, you see a labeled gap. Never a guess.
- The 3-pack priced as a single
- pack count detected and multiplied, then double-checked at buy time
- The gated pallet
- your own account's verdict, checked fresh every scan
- The vanished freight
- folded into per-unit COGS automatically
- The 3 missing units
- shipped vs. received, checked automatically, around the clock
- The light deposit
- every settlement checked against your books, line by line
The sheet said 48% ROI. Here's where it went.
You've made this buy. A row on a supplier sheet, great numbers, so you ordered deep. Then: the listing was a 3-pack — your sheet had the single price, real cost triple. Your account was gated in the brand — the shared database said ungated, about somebody else's account. The Buy Box dropped $4 between the scan and the order. The fee table was stale — 40 cents light per unit, times 500 units. Freight ran $180 and never entered your per-unit cost. You shipped 60, Amazon checked in 57 — nobody noticed, no claim filed. A restocked return got expensed twice. The deposit came in light and your tool's "estimated payout" couldn't explain why. None of these showed up as losses. They showed up as profit that was never really there — and the tool you're using now can't show you that, because the tool you're using now wrote half of it. You didn't quit your last tool because it was slow. You quit the day you caught it making a number up.
- Did it sell?
- every settled sale carries the exact cost of the units that filled it
- What did Amazon keep?
- every fee categorized from the settlement, under Amazon's own fee names
- Did the deposit match?
- a $12,000 deposit read order by order, with the delta shown per statement
- Where are the missing units?
- say the books hold 40 units Amazon doesn't — the rows flag themselves
- Does the honesty run both ways?
- supplier money recovered and money written off, both on the record
Every tool asks "can I sell it, will it profit?" Nobody asks what happened next.
The before-questions are table stakes — we answer those too, on the Find & Check page. The after-questions are the ones that decide whether you're actually making money, and every one below has its own screen with a real answer on it. Here's the shape of a month, as a worked example.
- Uncosted sale
- held out of profit, listed with the dollars at stake
- Failed gating lookup
- COULDN'T CHECK — a verdict, not a green light
- Unknown cost on a sale
- a dash, never a fake $0.00
- Partial period
- dashed "to date" bar, never a fake sales dip
- Missing cost input
- the profit card says so, in amber, by name
An unknown number shows as a labeled gap. Never a guess.
An uncosted sale is held out of profit until you cost it — never booked at a fake $0. A gating check that fails says COULDN'T CHECK — never green. A half-finished month renders as a dashed bar marked "to date." An incomplete profit figure turns amber and names what's missing. You will see fewer numbers here than on other dashboards. Every one of them is real.
- Find & Check
- price sheet in, ranked buy list out — UPC Scanner and Bulk Checker included in every plan more on Find
- Buy & Ship
- checkout to Amazon's dock, nothing re-typed, every unit costed more on Ship
- Know
- the money page: P&L from settlements, deposits reconciled, tax by state more on Know
- Ads
- a full PPC optimizer that never touches your ads until you've read the file more on Ads
- Lens
- the extension that reads your own books while you browse Amazon more on Lens
Find it. Buy it. Ship it. Know what you made.
Four workflow pages that follow your money in order, plus a product that lives on the Amazon page itself — and a pricing page written like we expect you to read it (pricing).
- Receiving
- checked in against the order, so short and over quantities are recorded rather than assumed
- Zone / shelf / bin
- scan-to-bin with an ordinary barcode scanner, looked up server-side
- Labels
- FNSKU and MSKU, 2" x 1", printed from the browser with condition and Best By on every one
- Pack pooling
- six loose singles of a pack-of-3 are two sellable packs, and the send math knows it
- Shelf age and expiry
- colour-coded age badges and a 30-day expiring-soon alert
- Adjust with a reason
- Amazon tracks X, your books expect Y — you decide from facts, the P&L gets the cause
The half of this business that isn't on a dashboard.
Boxes arrive. Somebody checks them in, puts them somewhere, labels them, and has to know what's on that shelf six weeks later. Remworth runs that part too: receive against the purchase order, scan a unit to a bin, print FNSKU labels from the browser, and push finished stock onto an FBA shipment in two clicks with nothing re-typed. Every unit carries its own cost from the day it hits the shelf, so the profit math downstream never rests on remembering what a batch cost. Loose singles of a multipack pool into sellable packs on their own. And when the count is wrong, the adjust dialog puts Amazon's live number next to your books before you pick a reason — so the loss is booked with a cause instead of deleted.
- Review before apply
- you upload the file at Amazon and read Amazon's own per-row result
- No API approval
- it works from the bulk file every seller can already download
- A true delta
- only the rows you changed are written, never a whole-account rewrite
- The unchanged list
- every target it left alone, with the reason — including live campaigns that got zero impressions
- Your edits win
- type any bid or flip any row, with a warning first if it falls outside your own limits
An optimizer that tells you what it left alone.
Download your bulk file from Amazon Ads, drop it in, and read every proposed bid before anything happens. Nothing on your account moves until you upload that file back yourself — the review isn't a setting, it's the whole design. It works on Amazon's own Bulk Operations spreadsheets. Keywords and product targets across all four ad types, with every input sitting beside the proposal — impressions, clicks, orders, spend, ACOS, CPC, CTR, CVR. Hand-edit any bid you disagree with. And when the right answer is to change nothing, the page says so row by row, and tells you why.
- Connect
- Amazon's official consent flow — approve in Seller Central, done
- Orders
- as fast as Amazon allows, with automatic re-syncs behind them
- Settlements
- ingested automatically; books self-correct to statement truth
- History
- backfill starts automatically on connect
- The test
- our revenue reads against Seller Central exactly — principal-only, on purpose
Connect. Watch it fill. Then check us.
One click through Amazon's official consent flow — approve inside Seller Central, done, no developer keys to paste. Historical backfill starts the moment you connect, so day one isn't an empty dashboard. New orders land in your books as fast as Amazon allows; settlements are ingested automatically and the books converge to the statements Amazon pays you from. Then run the test we built the product to survive: compare our revenue line to Seller Central, and our profit to your bank deposit.
- Payout
- "estimated" → the settlement Amazon actually issued, reconciled line by line
- Cost per sale
- one ASIN-level average → the exact FIFO layer, traceable to the supplier order
- Gating
- a shared database → your connected account, checked fresh every scan
- Ads
- autopilot rewrites overnight → a file you review row by row and upload yourself
- Missing data
- a number anyway → a labeled gap, with the reason
Their engine is estimation. Ours is the settlement.
Every column on the left is how the category works — estimated fees over hand-typed costs, a payout it calls "estimated," a shared gating database, an autopilot you don't get to read. Every column on the right is checkable against your own bank.
- The money
- a $12,000 deposit read order by order, every line categorized
- The reconciliation
- each statement checked against the books, delta shown per statement
- The find
- phantom stock — books that say you own units Amazon no longer holds — flagged automatically
- The honesty
- supplier money recovered and money written off, both printed
- A worked batch
- $1,240 cost → $3,180 value → $1,378 estimated net, freight and fees in
Follow one buy from the price sheet to the bank.
Here's the shape of it, as a worked example. A batch costs $1,240 landed. It lists at $3,180 of value. Estimated net after fees and freight: $1,378 — computed per unit, traceable per sale. When the deposit lands, it gets read order by order, and anything the books can't yet prove is held out and labeled instead of guessed.
- Solo
- $199.99/mo · 4,000 AI scan rows a month · the full platform
- Pro
- $349.99/mo · 15,000 AI scan rows a month · the full platform, plus the Ads Suite
- The difference
- AI scanning capacity, and the Ads Suite is Pro. That's the whole list.
- Included in every plan
- UPC Scanner · 500-ASIN Bulk Checker · Lens
- Top-ups
- one-time AI scan rows, never expire, drawn after plan rows run out
Your bill doesn't climb because your business worked.
Solo $199.99/mo. Pro $349.99/mo. Both carry the full platform — financials, inventory, shipping, Lens. Pro adds the Ads Suite and the bigger AI scanning allowance: 4,000 rows a month on Solo, 15,000 on Pro. Full detail, including the parts other tools put in small print, on the Pricing page.
Straight answers
The questions you'd ask on a call.
Short answers here; every one expands on its own page.
Is this for private label?
Other marketplaces?
How fast do orders show up?
What does "reconciled" mean here?
Do I abandon my history?
The founder
Before this I spent a decade in cybersecurity and network engineering. Then my Amazon FBA side hustle started out-earning my salary, so I went full time. I've sold over five million dollars online since.
Running that business took seven tools, a browser full of tabs — some open all day just for information I needed — and more spreadsheets than I could count. No tool connected to any other tool. A few claimed to be the all-in-one, but the P&L was always off or always late, or they came up short somewhere else in the system. I never really knew what I was truly making, or I was limited by what the tool could do.
You know which jobs get put off. Tracking what's actually arriving at the warehouse. Finding the invoice for an order you placed six weeks ago. Reconciling numbers you don't trust. None of it is the fun part. All of it decides whether the business works — so I kept trying different software.
So I stopped shopping for the next tool and started building. FIFO costing, so every sale carries the exact cost of the units that filled it. A P&L that's right, and on time. The ads suite. The AI scanner. Receiving, prep, shipping into Amazon. Warehouse. Distributor analysis. The whole loop, one place.
Every piece of it I built for myself — out of necessity, or because something I was already paying for came up short. I've run my business on Remworth for two years.
Now it's yours. I hope it saves you what it saved me.
The pitch, in one test
Connect your account. Check our numbers against your bank.
That test is the whole pitch. Seven days free, the full product on your real data, card required — stated here, not in fine print. Cancel yourself, in the billing portal, no email to support.
- Day 1
- connect; backfill starts itself
- Day 2
- revenue vs. Seller Central — it should match to the line
- Week 1
- cost the gaps; the Cost Basis tab lists them
- Week 2
- our profit vs. your bank deposit
- Any day
- cancel, self-serve, no call