Is Keepa worth it?
The short answer
Keepa earns 4.5/5 in our review. Its biggest strength is deepest price and sales-rank history on Amazon; the main trade-off is interface is utilitarian, dated. It's best for Demand validation, Seasonality checks, Retail arbitrage.
Keepa tracks price and sales-rank history for virtually every Amazon product, with charts, drop alerts and a product-finder database. Sellers use it to validate demand stability and seasonality before sourcing, and to time buying decisions.
What we like: deepest price and sales-rank history on Amazon; browser extension overlays charts on any listing; affordable for the data depth.
Watch-outs: interface is utilitarian, dated; raw data; less hand-holding than full suites.