You trade on MetaTrader 5 or MetaTrader 4, as shown for your account in the portal. Follow these four steps.
Open an account and pass verification
Open a trading account in the portal
Install MetaTrader 5 or MetaTrader 4
Enter the login, password and server from the portal
Download MetaTrader from MetaQuotes or your device's app store. Check MetaQuotes for current system requirements.