Quansium has the most popular trading indicators available on TradingView. The focus is on simplicity and effectiveness. It has a lot of powerful features and comes with backtesters and alerts.
There is also QSX, which is included and introduces other innovating solutions as well. QSX stands for the most advanced systems we develop. The idea originated from High Frequency Trading, with speed being the primary goal. QSX strategies are mainly focused toward breakouts and pullbacks.