You will need to click the 3 lines at the top of the page, click onto Platforms, and then click on MT4.






Then scroll down a little until you find MetaTrader 4 all devices and click on Mac (If you are using an iPhone/iPad, click App Store.



The MetaTrader website suggests:


Play on Mac: Click here and follow the instructions.


Live server details are: mt4.NashMarkets.com     
Demo account details are: demo.NashMarkets.com

We do not officially support Play on Mac.