Author Ads Pro

Income and ad spend

See whether your ads grow your total income

Amazon's console judges each ad on the 14 days after a click. Series income keeps arriving for months, from books the ad never mentioned. Put daily KDP royalties and page reads next to every ad dollar you spend, on Amazon and off it, and get a straight answer.

Try it free in the beta Try the free analyzer

Every member tool is free during the open beta, through January 31, 2027. No card needed.

Weekly income from sales and page reads above weekly Amazon and Facebook ad spend, with a price promo week shaded
Thirteen weeks of sample data.

How it works

  1. 1

    Upload daily data

    Your KDP dashboard download, an Amazon campaign report by day, and Facebook or BookBub spend if you run them.

  2. 2

    Mark your events

    Price promos, newsletter features and releases, so they don't get credited to the ads.

  3. 3

    Read the answer

    What each ad dollar adds to total income, how sure that is, and how to check it with a spend test.

Every day, after ad spend

A calendar of total income minus all ad spend. Blue days made money after the ads; gold days didn't. Runs of gold are where the ads cost more than the whole catalog brought in.

Calendar of daily income minus ad spend, mostly blue with a few lighter days

Profit by book

Royalties and page reads for each book next to the Amazon ad spend on its campaigns, matched by campaign name. Fix a match with one click. Book titles never leave your browser.

Michael Cortez

Built by Michael Cortez

PPC strategist who manages Amazon and Google Ads for a living. Author Ads Pro exists because ACoS hides what Kindle Unlimited readers are worth. More about me.

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Questions

Doesn't the Amazon Ads console already show page reads?

It shows KENP read and estimated KENP royalties for the 14 days after a click, in their own columns. It can't show what readers buy or borrow after that window, or whether your total income moves with your ad spend. This page compares your whole KDP income with all your ad spend, day by day.

How does it decide whether the ads grew my income?

It compares weeks: income in each week against ad spend that week and the week before, leaving out weeks with promos, newsletter features or new releases because they move income on their own. You get the extra income per ad dollar, a likely range, and a plain comparison of higher and lower spend weeks. It needs 8 complete weeks.

Is that proof the ads work?

No. It shows what moved together. The clean check is a spend test: cut spend in half for two weeks, mark it as a spend test, and see what income does. The page tells you how to read the result.

Which files do I upload?

The KDP Reports dashboard download for a 60 to 90 day range (one row per title per day), an Amazon Ads campaign report with Daily as the time unit, and optionally a Facebook Ads Manager or BookBub Ads export broken down by day.

What gets saved?

Daily totals only: ad spend, Amazon-attributed sales, royalties and pages read per day, plus the events you mark. Book titles and the files stay in your browser.

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