Metatrader 4 is the Largest Trading Platform in the world
MetaTrader 4 (MT4) is a trading platform developed by MetaQuotes in 2005. Although it is most commonly associated with forex trading, MetaTrader 4 can be used to trade a range of markets including forex, indices, cryptocurrencies, and commodities, via CFDs.
MT4 is extremely popular due to the fact that it is highly customisable to your individual trading preferences. It can also be used to automate your trading, using algorithms which open and close trades on your behalf according to a list of set parameters.