The latest version macOS Catalina (10.15), released in October 2019 does not support any 32-bit applications.
The 32-bit app CATEYE Sync™software is therefore not compatible with macOS Catalina.
Please pay attention when you update your Mac OS.

Thank you for your understanding.

Relevant products: STEALTH Series (CC-GL51/11/50/10)・Q Series (MSC-CY300/200)・INOU (MSC-GC100)