Built for multi-marketplace Amazon sellers

Stop losing margin to scattered Amazon tabs. PPC, stock, pricing and VAT in one daily flow.

SellerEngine turns fragmented Amazon data into clear daily decisions — ads, sales, stock, pricing and VAT for every marketplace. Catch wasted spend and stockouts before they get expensive.

Card via Stripe · no charge before day 8 · cancel in one click · built by a seller who runs his own store on it

Free tool · no signup, no card

Reverse ASIN Lookup

Drop any ASIN. Get the keywords it actually ranks for, with search-volume context — free, in seconds.

0/1 ASIN

Three operating loops. One SellerEngine workspace.

Each loop pairs two tools so the daily routine never breaks — grow what works, protect what's earned, stay clean while you scale.

Loop 1 · Grow

Automate PPC from the daily signal.

Harvest converting terms, block waste before it bites, and see which marketplaces deserve budget today.

Loop 2 · Protect margin

Protect margin before risk gets costly.

Catch stock gaps, pricing pressure and margin erosion early, then reorder or reprice before the floor breaks.

Loop 3 · Stay compliant

Keep tax and listings audit-ready.

Keep VAT reports, invoices, listing health and marketplace policy drift close to the same daily workflow.

The toolkit

Six tools. Zero scattered tabs.

Each tool is sharp on its own and compounds when paired. Use one, use them all.

What you'll see

Specific decisions, every morning

SellerEngine turns your Amazon data into do-this-now actions — not another dashboard to read. Sample outputs from a mid-volume seller:

Sniper Hub · PPC

Negate “vanilla protein powder” — 41 clicks · €22.80 spent · 0 orders in 45 days.

Wasted spend blocked before it drains the budget — 8 negatives queued today.

Stock Control

SellerEngine 3 — 12 days of cover across your EU pool. Reorder 240 units before 22 Jul.

Real sales velocity + lead time + Pan-EU pooled stock, so you never stock out or over-buy.

TaxLedger · VAT

Q2 from one Amazon report: DE·FR·IT·ES domestic split, OSS grouped, refunds netted — €6,240 VAT, 9 countries.

Accountant-ready files in minutes, not a spreadsheet weekend.

Illustrative outputs from a synthetic mid-volume seller.

Pricing

One subscription. Six tools. Your whole Amazon operation.

Start with a 7-day free trial: add a card in Stripe, use the full workspace, and pay only after the trial unless you cancel.

Monthly

€149

per month after trial

  • 7-day trial after card setup
  • One workspace
  • All six tools
  • Priority support
Start monthly trial

Annual

€1,490

per year after trial — 2 months free vs monthly

  • 7-day trial after card setup
  • Two months free vs monthly (€1,490 vs €1,788)
  • All six tools
  • Priority support
Start annual trial
  • EU company — POLARSTAR OÜ, Estonia
  • Amazon Ads Partner Network
  • OAuth only — we never see your Amazon password
  • EU-hosted · GDPR-ready
  • Stripe billing — we never store your card
  • Delete your account and data anytime

Book your SellerEngine walkthrough.

Pick a 30-minute slot with SellerEngine support. The session is tailored to your marketplaces, catalog and current Amazon workflow.

Book a 30-minute walkthrough