MetaTrader 4 (MT4) is a free, widely-used trading platform for Forex markets, offering advanced technical analysis, flexible trading systems, and automated trading capabilities through Expert Advisors. It supports mobile trading, allowing access via iOS, Android, and Huawei devices, as well as desktop platforms including Windows, macOS, and Linux. MT4 also features services like Trading Signals for trade copying and the Market for purchasing trading robots and technical indicators