If you’re a regular online shopper, you may have noticed Microsoft’s commercial promoting the Bing shopping search engine over Google Shopping. In it, a couple discuss how “Google sells its shopping results, so while they look like honest search results, they’re really paid ads” and “you’re not even sure what stores they’ve left out.”

While it’s true that Google Shopping (formerly Google Product Search) transitioned from a free model to a paid model in 2012, that move only puts it in the majority of price comparison sites.

So does Bing really provide a better shopping search experience? I’m going to take a look at five popular shopping search engines, including Google and Bing, and see how they stack up. Three of the sites are “paid,” meaning they only accept paid (sponsored) listings, and two of the sites are “free,” meaning they accept a mix of paid and free submissions.

Revealed!! Battle of the Shopping Search Engines