We do not have a download file for the latest version (0.1.5), but you can try downloading it from the developer's site
Download version 0.1.5b from Mac Informer
Version: 0.1.5 β
Date update: Oct 3, 2014
File name: unseneapp-beta-v0.1.6-mac-full-ia32.dmg
Size: 62.5 MB