Modern macOS users typically prefer more frequently updated alternatives available directly in the Mac App Store for better compatibility with newer Apple Silicon (M1/M2/M3) chips and the latest Canon mirrorless cameras.
If you'd like to narrow down the best tool for your specific camera model, please let me know: What is the ? (e.g., R5, 5D Mark IV, R6)
EOSMSG is a niche messaging and calling application primarily used within certain Chinese ecosystems. No is officially published under the name “EOSMSG.” Therefore, “best” means the most stable, secure, and functional method to access EOSMSG services on a Mac.