qt is ok. bought it for its multi-broker connection advantage for trading crypto. but that market is dead now sc is good if you r a programmer. qt UI is friendly. good if you r not a programmer & want to trade tick/volume/footprint/dom charts. each platform has distinct advantages/disadvantages. huge qt disadvantage is lack of historical data vs sc who store that data. qt depends on your broker source. qt lacks common market indicators like a simple monthly/weekly pivot other than daily. ditto for OHLC for monthly/weekly. don't expect much support from both. sc has more history , hence a community & ready amount of freelancers. qt is new & no central forum, fewer freelancers. another thing i do no like about qt is their recent move to sell their product as a white label qt's closest comparison is sc. look up the advantages/disadvantages of both & make a personal informed choice, considering your needs. there r many other platforms for consideration