Free · no account, no email
Four things you can use
before you talk to us
Three calculators that answer a question you brought with you, and one complete decision trace that shows what the product does. Nothing here is gated, and none of it posts anything anywhere.
Browse the toolsPPC waste calculator
How much of my ad spend is buying nothing?
Your spend, your current ACoS and the ACoS you actually want. Returns the monthly euro figure sitting between the two, cross-checked against the 30–40% industry waste band, and the Mirox plan that fits your catalogue.
Ad spend · current ACoS · target ACoS · ASINs · marketplaces
OpenFlat fee vs % of spend
What will a PPC tool actually cost me over a year?
A year of tool fees at your spend under Mirox flat pricing and under the published models of Pacvue, Perpetua and Teikametrics. Sources cited, verification date on the page, corrections credited.
Monthly ad spend · plan
OpenACoS · ROAS · TACoS
Is my ACoS good, and how would I know?
All three ratios from one month of Seller Central figures, plus the only one that grades them: the break-even ACoS your gross margin sets. Refuses to call an ACoS good or bad without it.
Ad spend · ad revenue · total revenue · gross margin
OpenA sample decision trace
What does "explains every bid" actually mean?
One complete bid decision from our demo account, every step from the inputs through the safety checks to the bid sent to Amazon. Expandable, downloadable as CSV, no login.
Nothing — it is already filled in
OpenWhy none of these ask for your email
A calculator behind an email gate is not a calculator, it is a form with arithmetic attached, and everyone can tell. These four exist because the questions are real and the answers are cheap to compute — if the answer sends you to a competitor because a percentage model genuinely suits your spend better, that is a fair outcome and the pricing calculator says so out loud.
What we would rather sell you is the thing an estimate cannot do. The 14-day free trial runs on your real account and replaces every estimate on this page with the bids Mirox actually places — each with the reasoning attached. Prefer to watch first? Simulation Mode sends nothing to Amazon.
When the estimate is not enough
Stop estimating.
Watch it work on your account.
Fourteen days free on your real account. Every keyword scored, every bid explained, and your existing campaigns untouched.
14 days free · cancel anytime · connect and disconnect in one click