Amazon seller software

Know which SKUs actually make money — Amazon seller software

Revenue on Amazon hides the truth. Kesper shows true net margin per SKU after every fee, ad dollar, and return, keeps your stock synced across marketplaces, and watches competitor prices — for $49/month flat.

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$49/month flat · every store, every channel · Shopify, Toast, Square, Clover, eBay, Amazon

Why Amazon sellers lose money they can't see

  • —After referral fees, FBA, ad spend, and returns, a SKU's real margin is a different — sometimes negative — number than the sale price suggests.
  • —Selling on Amazon plus eBay or Shopify means the same unit can oversell, triggering fees and cancellations that hurt your ratings.
  • —Competitor prices move constantly, and reacting by hand across a big catalog is impossible.
  • —You're stitching this together across seller dashboards and spreadsheets at 11 PM.

How Kesper works for Amazon sellers

SCROOGE

Net margin per SKU, after everything

Calculates true margin after Amazon's fees, your ad spend, and returns — so you know which listings make money and which quietly bleed.

NEXUS

Cross-channel stock sync

Reconciles inventory across Amazon, eBay, and Shopify so a unit sold on one isn't still for sale on another — cutting oversell fees and cancellations.

RADAR

Competitor price monitoring

Scans competitor prices across your catalog and surfaces where you're out of line — repricing decisions ranked, not a wall of noise.

MONICA

A daily brief, ranked

The margin, stock, and pricing actions that matter land in a 7 AM Slack brief. Every number cited to its source, nothing invented.

What you get

✓True net margin per SKU after fees, ads, returns
✓Cross-channel stock sync (Amazon, eBay, Shopify)
✓Competitor price monitoring
✓Oversell and cancellation prevention
✓A daily Slack brief of ranked actions
✓$49/month flat — every channel included

Questions

Does Kesper connect to my Amazon account?

Yes — Amazon natively, plus eBay, Shopify, and more, with a developer API for anything else. Connections are read-only until you approve an action.

Does it reprice for me automatically?

Kesper surfaces where your prices are out of line and ranks the decisions; you stay in control of what changes. It's an intelligence layer, not an auto-pilot that acts without you.

How does it know my real margin?

It pulls Amazon's fees, your ad spend, shipping, and returns against each sale, so the margin it shows is net — not gross. Every figure links back to its source.

What does it cost?

$49/month flat for the whole account, every channel included. 7-day free trial, no card, cancel anytime.

Put a staff of 36 on it.

Connect your store in 60 seconds. Wake up to a brief, not a spreadsheet. $49/month flat, cancel anytime.

Start your 7-day trial