Less is a CSS pre-processor, meaning that it extends the CSS language, adding features that allow variables, mixins, functions and many other techniques that allow you to make CSS that is more maintainable, themable and extendable.
Less Framework or its present successor Frameless Grid is a CSS grid system for designing perfectly responsive multi-layout websites. Built on a single grid, it contains 4 layouts (Default, Tablet, Mobile, Wide Mobile) and 3 sets of typography presets using golden ratio. Although Less Framework hasn't developed its name big enough compared to other responsive frameworks, it does truly back Bootstrap as a predecessor and promises a growing development community.
For any responsive project requirements, we are managing to deliver the most feasible solutions and methodologies but keep the development as well as the ongoing management as much simple as possible for both the coders and customers. Whatever responsive framework we recommend you, Twitter Bootstrap, Responsive Grid System, Foundation or Less, we always pay highest attention to details and polish the final product before handing it over to you.