Responsive Site Designer 3.5.2979 for Mac could be downloaded from 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 software for Mac is CoffeeCup Software. The application lies within Developer Tools, more precisely Webmaster Tools. We recommend checking the downloaded files with any free antivirus.
From the developer:
Responsive Site Designer gives you the ability to create stunning website designs that look fantastic and are easy to use on any device. No layout or template limitations. No code. Responsive Site Designer is 100% design freedom. From paper sketches to the production server.
You may want to check out more Mac applications, such as TurboCAD Mac Designer, Handheld Designer or Space Designer Manager, which might be similar to Responsive Site Designer.
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