Download of alltr 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 software lies within Developer Tools, more precisely Webmaster Tools. This Mac application is a product of seyDesign. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
alltr is a responsive-ready RapidWeaver theme that focuses on getting your information out there effectively and efficiently, making things easy to find on your site. Ideas are visually segregated, navigation is clear and simple and space is used to great effect.
You may want to check out more software for Mac, such as AcidSearch Installer, Browsealoud or RAGE WebDesign, which might be similar to alltr.