In the past two years, "ecological circle" has become a hot word, and a few home appliance brands, including Haier and Midea, are actively embracing this concept. Correspondingly, various "circles" such as kitchen ecological circle, washing ecological circle and air ecological circle are not uncommon. On the basis of selling hardware and single products, merchants are waiting for ways to sell ecology and sets.

Cookpad, a relatively large cookbook website in Japan, charges membership fees, but it is not available in China at present, mainly because there is no such payment habit. In the early days of domestic internet software, users obtained it for free. At first, they made profits through other charging items or advertising forms, such as early video websites such as Youku and Tencent, which led to a lot of toC-side software based on free, until enough user groups were cultivated. "