Little-known anti-malware programs display warnings, which are often identified as false positive. Nevertheless, it is recommended to recheck the file with your antivirus software after downloading.
We do not have a download file for the latest version (5.2.8), but you can try downloading it from the developer's site
Download version 4.3.1 from Mac Informer
Version: 4.3.1
Date update: Feb 14, 2022
File name: chatmateforwhatsapp.dmg
Size: 13.8 MB