The three paid plans differ primarily in the number of stores, product items, feeds, marketplaces, orders, and ad listings you can manage. Starter is designed for smaller stores selling on a limited number of channels. Pro adds higher item limits, more feeds and marketplaces, and faster sync frequency, making it the most popular choice for growing stores. Ultimate is built for high-volume sellers managing large catalogs across many channels simultaneously. All plans include access to both the Feed Manager and Marketplace Manager.