Mac Link _verified_: Euroscope

But it was the scope.

If you want to avoid the headache of Windows software entirely, consider these native options: Use EuroScope and Audio for VATSIM on Linux/Mac - GitHub euroscope mac link

Pros/cons summary:

On the twentieth attempt, a grey window flickered open on his Mac desktop. It was ugly. The fonts were jagged. The colors were washed out. The radar sweep stuttered. But it was the scope