Profit analytics, AI repricing, PPC bid optimization, keyword research, reimbursements and 35+ calculators — one dashboard, built for FBA sellers and the agencies that run them.
14-day free trial · Cancel anytime · Connect via Login with Amazon — we never see your password
Demo login: owner@selleros.app / demo1234
40+
Seller tools in one place
35+
Calculators & analyzers
4
Marketplaces modeled (US·UK·DE·CA)
4
Team roles with granular access
Fee errors, Buy Box price wars, and wasted ad spend — each one has a dedicated engine.
Amazon loses, damages and mis-fees inventory every week. SellerOS finds the money and helps you claim it back.
Event-driven AI repricing that reacts to every competitor move — and never breaks your margin floor.
Move every bid toward your target ACoS automatically and shut off the search terms that never convert.
Stop paying for five different tools. SellerOS unifies your entire Amazon workflow.
Surface winning products with demand, competition and opportunity scoring across every category.
Discover high-volume keywords and reverse-engineer any competitor ASIN's ranking strategy.
Monitor organic positions daily and catch ranking drops before they cost you sales.
See real net profit after every Amazon fee, COGS, PPC dollar and refund — by SKU.
Buy Box losses, hijackers, stock-outs and listing changes — the moment they happen.
Break-even bids, TACoS, and search-term harvesting to cut wasted ad spend and scale winners.
FBA & FBM profit, landed cost, VAT, break-even, ROI, bundle and storage — every number a seller needs.
Invite your whole team with granular role-based permissions. Built for agencies.
From sign-up to seeing your real numbers in minutes — not a week of onboarding.
Authorize through Amazon's official Selling Partner API with Login-with-Amazon. No passwords shared, revoke anytime — or explore first with full demo data.
Orders, fees, inventory and reimbursements flow in. Profit analytics shows real net margin per SKU after every Amazon fee, COGS and ad dollar.
Fix pricing with the optimizer, harvest keywords, plan restocks before stockouts, and launch new products with a payback plan — all from one dashboard.
AI Repricer
Most repricers race to the bottom because they only know your price. SellerOS builds a net-margin floor from your itemized costs — COGS, inbound freight, pick & pack, the referral fee with Amazon's $0.30 minimum, even VAT — and never prices below it, no matter what a competitor does.
Pick a strategy per listing (win the Buy Box, maximize profit, match lowest, or fixed), set the aggressiveness dial, and let offer-change events drive the rest. A win-probability model scores every suggested price, price-war detection holds the floor instead of chasing undercutters down, and a full activity log shows every move and why.
Read the full breakdownTrue Profit Analytics
Seller Central shows revenue. SellerOS shows what you kept: net profit per SKU after referral fees, FBA fulfillment, cost of goods, every PPC dollar and every refund — over 7, 30 or 90 days, with the trend charted next to it.
A where-the-money-goes breakdown turns each revenue dollar into its fee components, the SKU table ranks your catalog by real profitability, and one click exports it all to CSV or a formal P&L your accountant will actually accept.
Read the full breakdownPPC Bid Optimizer
Set one account-level target ACoS and the optimizer computes the right bid for every keyword: raise the efficient converters with headroom, lower the ones burning past target, cut the zero-order spenders, and keep exploring keywords that haven't collected enough clicks to judge.
Changes are rate-limited so a bad day can't swing your bids wildly, every suggestion comes with its reasoning, and you stay in control — apply keyword by keyword or all pending changes at once.
Read the full breakdownReimbursement Recovery
FBA warehouses lose inventory, damage units and mis-charge fees every week — and Amazon only pays you back if you notice and file. SellerOS puts every recoverable case in one queue: lost or damaged in the warehouse, destroyed stock, inbound shortages, lost customer returns and fee overcharges.
Each case shows the reason, the estimated recovery amount and — critically — the filing deadline, with anything expiring within 30 days flagged as urgent. File the claim from the same row, and the return-rate analyzer quantifies what unsellable returns are silently costing you on top.
Read the full breakdownRepricing and bidding move real money — so the data underneath has to be right.
Your orders, fees, inventory and reimbursements come from Amazon's official Selling Partner API — not scraped pages or third-party estimates.
Competitor offer changes trigger the repricer the moment Amazon publishes them — no waiting for an hourly refresh while the Buy Box moves.
Every fee formula, margin floor and bid rule is pinned by tests — the $0.30 referral minimum, VAT extraction, GCM encryption, all of it.
Amazon tokens are AES-256-GCM encrypted at rest, and we request only the SP-API scopes a feature actually needs.
Every tool below ships with every plan — the same jobs you'd otherwise stitch together from four different products.
The full dashboard — all 40+ tools and 35+ calculators — works instantly on realistic demo data. No Amazon account, no credit card, nothing to install. Or start with a free tool, no sign-up at all: FBA calculator, size-tier optimizer, payout estimator.
Most sellers pay for a research suite and a profit tool and spreadsheets to glue them together. SellerOS covers the whole workflow.
| Capability | Research suite | Profit tool | SellerOS |
|---|---|---|---|
| Product & keyword research | — | ||
| Rank tracking & listing tools | — | ||
| True profit analytics (per SKU) | — | ||
| PPC optimization & pacing | Partial | Partial | |
| Inventory, restock & shipments | — | Partial | |
| Repricing & Buy Box | — | — | |
| Reimbursements & reviews | Partial | Partial | |
| Team seats with role-based access | Partial | — |
Capability comparison against typical single-purpose tools in each category — features vary by vendor and plan.
The same platform scales from one SKU to a client portfolio, because roles and data isolation are built in — not an enterprise add-on.
Run research, pricing, PPC and restocks yourself without paying for four subscriptions.
Protect margin across a real catalog — where fee errors and price wars actually add up.
Manage every client from one login with the access controls your contracts require.
Forty tools sounds like forty jobs. In practice it's a simple operating rhythm — and the most time-sensitive parts run without you.
Open the restock planner for reorder dates built from velocity and lead time, check stockout cost on anything close to the line, and clear aged inventory before long-term storage fees stack up.
Review the bid optimizer's per-keyword suggestions toward your target ACoS, harvest the search terms that convert, negate the ones that never do, and check budget pacing before the month runs away.
Read per-SKU net profit for the week, run the Profit Leak Finder to see recoverable dollars ranked by impact, and export the P&L or any report to CSV from the Reports hub.
The repricer reacts to competitor offer changes the moment Amazon publishes them, and alerts flag Buy Box losses, hijackers, stock-outs and listing changes as they happen — not in tomorrow's report.
One subscription instead of four
Research suite, profit tracker, repricer, PPC tool — single-purpose products each charge their own monthly fee. SellerOS includes all of it from $49/month, and every tool ships on every plan.
From solo sellers to multi-brand agencies. Every plan starts with a 14-day free trial — no credit card required — and you can cancel or switch anytime.
For solo sellers validating their first products.
Built to Amazon's SP-API Data Protection Policy from day one — not bolted on later.
Login-with-Amazon consent flow — we never see your Seller Central password, and you can revoke access anytime.
Amazon refresh tokens and secrets are encrypted with AES-256-GCM before they ever touch storage.
TOTP two-factor auth, four granular roles, and org-scoped data isolation for every tenant.
We request only the SP-API scopes a feature needs, and logs are scrubbed of PII by design.
Read more in our security overview and privacy policy.
Everything you need to know before getting started.
Yes — every plan starts with a 14-day free trial. No credit card required to sign up.
You connect through Amazon's official Selling Partner API (SP-API) using a secure “Login with Amazon” handshake. We never see your Seller Central password — you authorize access and can revoke it anytime.
Product & niche research, keyword research and rank tracking, listing optimization, true profit analytics, PPC, inventory and restock planning, repricing, reviews, reimbursements and sourcing — in one platform.
Yes. Growth and Enterprise plans include multiple seats with role-based access (Owner, Admin, Analyst, Viewer), so agencies and multi-brand teams can collaborate safely.
Access is role-based and scoped to your organization. We request only the SP-API permissions a feature needs, and credentials are encrypted at rest.
Absolutely — cancel or change plans whenever you like. Your access continues through the end of the current billing period.
Never. Connection uses Amazon's Login-with-Amazon OAuth consent screen — you sign in on Amazon's own page and grant scoped access, which you can revoke from Seller Central at any time.
Yes. Every tool and all 35+ calculators work immediately on realistic demo data, so you can evaluate the whole platform — or plan a product launch — before granting any access.
There's nothing to migrate: connect your Amazon account and your orders, fees, inventory and reimbursements flow in from Amazon's own records. Run SellerOS alongside your current stack during the trial and compare the numbers yourself.
Your live data follows whatever marketplaces your Amazon selling account is enrolled in through SP-API. The pricing and expansion calculators additionally model the US, UK, Germany and Canada out of the box — FX conversion, VAT extraction and regional fees included — so you can compare profitability before launching abroad.
Amazon's fees come straight from Amazon; your unit costs come from you. Enter them once in the COGS Manager and every per-SKU profit number — Profit Analytics, ABC analysis, the Profit Leak Finder — recalculates against your real cost of goods instantly.
Connect your Amazon account in minutes through the official Selling Partner API — or explore every tool first with full demo data. No credit card, cancel anytime.
Secure Login-with-Amazon OAuth · We never see your Seller Central password