It is explained here: We originally built the software for these systems in a cross-platform manner, targeting Mac, Windows, and Linux using a C++ codebase. Ab

It is explained here: We originally built the software for these systems in a cross-platform manner, targeting Mac, Windows, and Linux using a C++ codebase. About eight years ago, we realized that as a small team we needed to focus on one platform in order to accelerate development and take on our much larger competitors. After a lengthy evaluation of the Windows, Mac, and Linux development environments, we chose the Mac and Cocoa (despite none of us having much experience with the Mac before that). We rewrote our entire control software in Cocoa seven years ago, and looking back I feel that it was one of the best decisions our company has made.