The best Forex trading platform is believed to be MetaTrader4 developed by MetaQuotes SoftWare Corp. (January 2018)
The trading platforms provide a trader with the necessary tools for technical analysis, transmit real-time quotes, allow placing and managing orders, as well as monitoring the status of the trading account.
The terminal is equipped with MQL4 programming language, using which traders can automate their trading: use advisors, scripts, indicators.
MetaTrader4 is implemented in three versions: desktop, mobile and online (web). All the versions are available for trading with XM.
XM also offers MT5 trading platform.