There are also free cashier systems, but most of them are only limited to some functions. Some small businesses think that the free version is enough, while others think that it is not enough. Mainly depends on everyone's needs. Some people say that the free version is not good, but it is not. Many softwares we use are free, such as Meitu Xiu Xiu, Youdao, Koukou and WeChat. But there is a payment function inside. When choosing free software, it is best to choose a regular software vendor.