We do not have a download file for the latest version (12.0.40), but you can try downloading it from the developer's site
Download version 8.0.0.7 from Mac Informer
Version: 8.0.0.7
Date update: Apr 11, 2014
File name: thebrain_macos_8_0_0_7-a.dmg
Size: 43.3 MB