Comparison

A Publisher Rocket alternative for running ads

Publisher Rocket is a research tool: it helps you pick keywords and categories before you launch. Once ads are running, a different question matters: which of those keywords actually make money?

By Michael Cortez, PPC strategist · Updated November 8, 2026

What Publisher Rocket does

Publisher Rocket (a one-time purchase, $199 at the time of writing) estimates search demand and competition for keywords, finds categories, and builds lists of keywords and competing books to target in Amazon Ads. It's research before you spend. Details on Kindlepreneur's site.

What it doesn't do

Read your actual ad results.
Tell you which search terms to negate or which bids to change.
Account for Kindle Unlimited page reads and series read-through when judging a keyword.

Where the Kindle Author Ads Analyzer fits

After launch, your search term report holds the real answer. The free analyzer judges every search and target on series profit, lists negatives and bid changes, and finds searches to harvest into exact match. It's the step after research.

More options in the full tool comparison.

Run your own report through the Kindle Author Ads Analyzer

Free, runs in your browser, no signup. See which terms to negate, which bids to move and which keywords pay across the series.

Analyze my report

Questions

Is there a free alternative to Publisher Rocket?

For research, Amazon's own search box and your ads' search term report cover a lot. For optimizing ads that are already running, the free Kindle Author Ads Analyzer does what Publisher Rocket doesn't: judge each search term and bid on results.

Does Publisher Rocket manage Amazon Ads?

No. It helps you find keywords, categories and competitor books to target. Managing bids and negatives after launch happens in the Ads console or another tool.

Should I use both?

They do different jobs. Publisher Rocket helps you build the first keyword list; the analyzer tells you which of those keywords made money once the ads ran.