Which is better, Qianlong, Great Wisdom or Tongda Letter? What are the characteristics of indicators?

In fact, there are only a few free stock trading softwares in the mainstream market, and I feel that I have summed up my years of experience.

First: flush (advantages: old classic stock trading software, industry standard; The fastest software, free viewing of US stocks and Hong Kong stocks, supports almost all brokerage transactions; Disadvantages: too low-key)

Second: Tongda letter (advantages: fast speed, second only to straight flush, disadvantages: lack of analysis data, less post-service)

Third: great wisdom (advantages: the original 6.0 is good, and now it is mandatory for a new generation; Disadvantages: products are mainly charged, and the new generation feedback says that they are not easy to use, their performance is not stable enough, and the market is intermittent, which does not support brokerage transactions)

Fourth: Qianlong (advantages: early production, wide use, disadvantages: the information index is too weak, the usability is poor, the update is too slow, and few people use it now)

Fifth: Oriental Fortune Connect (advantages: relatively more information; Disadvantages: transaction is not supported, and technical indicators are too weak)

Sixth: trader software (advantages: rich market; Disadvantages: the charging software requires mobile phone registration, which is not practical and does not support transactions)

Seventh: flying fox (advantages: indicators are ok, disadvantages: information is too weak, basically disappeared after being acquired)

Eighth: compass (advantages: long time, disadvantages: slow software, suitable for the market in 2006 and 2007, and now it is out of date)