I hear a lot about amibroker and ninjatrader and data feed providers like global data feed etc.
I am confused as to why someone would pay monthly fees when zerodha or upstox are providing browser based trading option as well as software like dartstock (upstox)
Amibroker Formula Language had the most similarities to Metastock, a platform I tested many years ago. Thus, easier for me to learn. A lightning fast optimization feature. I talked with another trader using Tradestation, but for me the AB code looked much more intuitive and easier to grasp.