HIARCS Chess Explorer has the following system requirements:
Apple Mac OS X
Requires: Mac™ OS X 10.7 (Lion), 10.8 (Mountain Lion), 10.9 (Mavericks), 10.10 (Yosemite) or 10.11 (El Capitan)
Computer: Intel based Apple Macintosh™ computer (Any Intel based Mac computer made in 2007 or later)
Languages supported in the GUI are English (UK), English (US), French, German, Italian, Polish, Portuguese, Russian and Spanish.
HIARCS Chess Explorer supports Apple retina displays.