Download of Subtitlr 1.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free Mac application is Lucija Frkovic. We recommend checking the downloaded files with any free antivirus. Subtitlr for Mac lies within System Tools, more precisely File Managers.
From the developer:
Subtitlr is an open source OS X app used to find and download subtitles. Video files are dropped into the app which then finds their hashcodes using OpenSubtitles.org algorithm and matches them against their database. Matched subtitles are downloaded in the same directory where the video files are located.
You may want to check out more Mac applications, such as eps2pdf, Files Renamer or png2swf, which might be similar to Subtitlr.