Due to the 64 bit nature of macOS Catalina, the MT4 platform for Mac is no longer supported as it is a 32 bit app.
We suggest (if you haven’t updated yet) to avoid updating to the macOS Catalina by:
On Mojave, the setting is in System Preferences >Software Update. On High Sierra and earlier, the setting is under the App Store Preferences.
If you already made the update then you could have a Time Machine backup. In the event that Catalina is installed, reverting to the previous OS will involve the assistance from Apple Support and a backup is needed to return to a working state. If you don’t already have a backup, you can find the instructions for setting one up at https://support.apple.com/en-us/HT201250
If you've already downloaded the MetaTrader 4 for Mac .dmg file – search for a file “TradersTrust MT4.dmg” at your “Downloads” folder. That’s all you need to download MetaTrader 4 for Mac. To install MT4 app on your Mac, launch it and drag the icon “TradersTrust MT4” to “Applications.”
By simply typing in “TradersTrust” you should be able to launch the program from your Applications, Launchpad, or via Spotlight. In order to have the application available faster ,after closing it you can move it around in the Dock. Later, it will be possible to launch it from there.
Tip: Most Mac computers allow installing applications downloaded from “Everywhere.” Although this option is not set as default, the majority of users choose it, so you might already have it set.
Should you have issues while installing the app, launch the downloaded app after you dragged it into applications folder, then, go to System Preferences → Security & Privacy → General tab → and select “Anywhere” in “Allow apps download from” setting.
Your TradersTrust MT4 for Mac allows you installing Expert Advisors (EAs), scripts, and indicators similar to it’s Windows counterpart.
For that purpose, you need to see files of the MetaTrader 4, which can be done by going to Applications, right-clicking on the TradersTrust terminal, and then clicking “Show Package Contents.”
Navigate further to “/drive_c/Program Files/Traders-Trust MetaTrader 4 Terminal/MQL4/” – there, you will see folders /Indicators or /Experts. You will see the Expert Advisor or custom indicator that are already available.
To add new indicators & EA’s to your MetaTrader 4 for Mac, place the necessary files in the respective folders (as per instructions of the respective indicator/EA/script), open or restart your MT4 Mac Terminal to have them installed.
Uninstalling TradersTrust MT4 for Mac is accomplished the same way as with any other Mac application. You need to find the app in your Applications, right-click on it, and press “Move to Trash.” Another way to do it is to simply drag and drop the app to your Dock’s Trash bin.
The solution we offer has native installation experience that allows users to enjoy their trading without spending much time on technical issues.
No issues have been discovered connected with using MT4 on Mac. But, remember: the solution we offer operates in an emulated Windows environment. It has been tested extensively by us in order to make sure it’s safe to trade. However, to secure yourself, consider trading on a Demo account first to check if everything runs smoothly. After that, you can opt for live trading on your Mac computer.