The answer has to do with a 2018 deal between Amazon and Apple.
Apple reportedly cut a deal with Amazon to make sure you don’t see advertisements for its competitors’ products on the same page as the iPhone, iPad, MacBook, and its other products.
According to Business Insider, Apple struck a deal with the retailer to ensure that its product pages look a bit cleaner than those of its competitors, simply because they don’t have as many ads.
While you’ll still see competing products in search result pages for Apple products, Amazon is limiting the ads that it puts above, below, and around those results. When you click on a certain product, Amazon also doesn’t show “products related to this item” or products with a “4-star rating or above,” like it does on other competing products.
