Straight flush: 1. Free version: it can be used normally, but it lacks some data of capital inflow and outflow, and also lacks the prompt trading information of the website of the flush. 2. Charged version: fully functional, with capital inflow and outflow analysis of related stocks, and professionals from Flush Software Company to guide your trading trend, which will help you analyze the stocks you hold; 3. What's the charge? Depends on what version you want. There are many charging versions of Chuangcang products, and the charges are different. This question needs you to call the straight flush company for consultation!