The 1.4 version of Freebase MonstAr for Mac is available as a free download on our website. This free Mac app is a product of atxx. The application lies within Internet & Network Tools, more precisely Browser extensions.
From the developer:
Freebase MonstAr is a Safari Extension that delivers Freebase search results that are typically seen when searching for people, movies, TV shows, artists, etc.
You may want to check out more Mac applications, such as Monster Truck Hero HD, Crazy Monster Truck Escape or Heroes VS. The Monster: Battle in Autumn, which might be related to Freebase MonstAr.