Drag the App to the Application Folder (or double click on it to run without installation)
On the first use of the application, right-click on the application logo and choose ‘open’.
If that does not work, please choose Apple menu > System Settings, then click Privacy & Security in the sidebar (you may need to scroll down).
Go to Security, then click ‘Open'. Click 'Open Anyway’. This button is available for about an hour after you try to open the app.
Enter your login password, then click OK.
From then on, you should be able to launch the application by double-clicking.