Apple removes the widely used and most popular Forex Trading Apps; MetaTrader MT4 & MT5 from App Store MT4 & MT5 apps are no longer on the App Store globally. The removal of popular trading apps is reportedly linked to the Western sanctions on Russia Apple appears to have pulled popular trading apps MetaTrader 4 and MetaTrader 4, also known as MT4 and MT5, from the App Store overnight in a move possibly linked to the Western sanctions.