Huatai Professional Edition is a flush version, and it is also a good stock trading software. If compared with Tongda letter, it should be said that each has its own advantages. Mainly depends on your own operating habits. Personally, I think both are good. If you want to set up your own viewing interface, communication software is more free than straight flush software. It doesn't matter if it's not necessary. If you can't choose, you can install and use both at the same time.