MetaTrader4, referred to as MT4, is an international third-party foreign exchange trading software, which is neither a trader nor a trading platform. The premise of using MT4 is that the trader has paid the right to use MT4. When a trader buys the right to use MT4, he will have his own server in MT4 trading software for investors to use. So MT4 is not a trading platform, but an international third-party foreign exchange trading software, which can be downloaded at http://mt4. M 1 .sinklow.xyz/website.