The 1.8.6 version of samancegroup for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Samancegroup for Mac lies within Developer Tools, more precisely Webmaster Tools.
The actual developer of this software for Mac is Celestial Teapot Software. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Fluid lets you create a Real Mac App (or "Fluid App") out of any website or web application, effectively turning your favorite web apps into OS X desktop apps.
Creating a Fluid App out of your favorite website is simple. Enter the website's URL, provide a name, and optionally choose an icon.
You may want to check out more Mac applications, such as AcidSearch Installer, solr or joomla-, which might be related to samancegroup.