Downloading #blockit 3.12.6 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. #blockit for Mac lies within Internet & Network Tools, more precisely Browser extensions. We recommend checking the downloaded files with any free antivirus. This free software for Mac OS X is an intellectual property of Jordi Kitto.
From the developer:
#blockit is a Safari extension that blocks distractions to regain your focus. Instead of blocking an entire website, #blockit removes only the distracting parts of the site (such as the Facebook News Feed) and leaves the rest of the website untouched and available (like notifications, events, friends, messenger, and more).
You may want to check out more Mac applications, such as Cooliris Widget, VisComPic or Mars, which might be related to #blockit.