When comparing Foundation vs Ruby on Rails, the Slant community recommends Ruby on Rails for most people. In the question“What are the best web design tools?” Ruby on Rails is ranked 8th while Foundation is ranked 11th. The most important reason people chose Ruby on Rails is:
The sheer scale and massive number of developers using Rails has produced a large number of guides, tutorials, plugins, documentation, videos and anything that can help new and old Rails developers.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Responsive design philosophy
Foundation allows designing for multiple screen sizes simultaneously easily, meaning your content will always fit.
Pro Uses REMs instead of pixels
Foundation uses REMs instead of pixels, meaning you don't have to state an explicit height, width, padding, etc, for every device. Simply put, using REMs means you can just state font-size: 80%; and have the whole component (and its nested elements) shrink by 20%.
This is great for making your site mobile friendly. There is also a Sass function in Zurb that converts pixels to REMs so if you're used to thinking in pixels, you don't have to learn a different system.
Pro No style lock-in
Styles are purposefully undeveloped to encourage differentiation between different sites using Foundation.
Pro Block grid
Foundation has a feature called block grid. Block grid gives designers the power to divide the contents of an unordered list into a grid that is evenly spaced. Furthermore, Foundation also takes care of collapsing columns as well as removing gutters.

Pro Easy customization
Just by looking at the name, Foundation merely provides designers with a foundation of sorts on which they can build their design. It can be customized easily through SASS, a powerful CSS pre-processor or by overriding the default CSS styles.
Pro Easily extensible with a selection of add-ons
There's a variety of front-end templates, icon fonts, responsive table examples, SVG icons and stencils that help you quick-start or easily improve on your site.
Pro Support for off-canvas navigation
Foundation comes with an easy way of creating off-canvas menus.
Pro Uses Interchange to load responsive content
Foundation comes with Interchange, it makes use of media queries to load images responsively and create content that's suited to different browsers and devices.
Pro RTL support
Allows easily changing text direction.
<html class="no-js" lang="ar" dir="rtl">
Pro Built-in form validation
Foundation comes with Abide plugin, an HTML5 form validation library.
Pro Good mobile support
Foundation was one of the first frameworks to adopt a mobile-first philosophy. By focusing on mobile design first, Foundation makes designers think on what kind of content is important, relevant and interesting to the users without thinking too much on the space.
Pro Massive community with lots of tutorials and guides
The sheer scale and massive number of developers using Rails has produced a large number of guides, tutorials, plugins, documentation, videos and anything that can help new and old Rails developers.
Pro Many plugins (gems) available
There are many third-party plugins (Ruby gems) available for Rails development. The larger ones and those that have a lot of downloads and users are very well documented and easy to use.
Pro Ruby is a nice readable language
Ruby has a very clean syntax that makes code easier to both read and write than more traditional Object Oriented languages, such as Java. For beginning programmers, this means the focus is on the meaning of the program, where it should be, rather than trying to figure out the meaning of obscure characters.
presidents = ["Ford", "Carter", "Reagan", "Bush1", "Clinton", "Bush2"]
for ss in 0...presidents.length
print ss, ": ", presidents[presidents.length - ss - 1], "\n";
end
Pro Good conventions
MVC is a great starting point, and perfect for APIs. You'll rarely if ever have to wonder "where should I put this code?"
Pro Small projects are very easy and it's possible to finish one in very little time
The large number of documentation, tutorials, videos and guides which help new developers who are just starting with Rails make it seem very easy to create a small and simple application by relying on code generation and components that come out of the box with Rails.
Pro Cool language
Pro Supported on every major cloud or VPS hosting service
Rails is supported on every major Cloud hosting service nowadays. There are also countless tutorials that help developers deploy their Rails apps if there are any problems on the way.
Pro Meta-programming capabilities
Cons
Con Can be hard for beginners to grasp
Since Foundation is built to be customizable, it's default style may not be very appealing for most. While it's true that most production-ready websites shouldn't be using the default style of a css framework (they would all end up looking the same), this is even more true for Foundation.
Con Needs more pre-built components
Example would be a scroll-spy not only for one cell, but cell to cell.
Con Not UMD pattern in core
This problem will bring attention when used with Angular, React and other JS framework. It is important to know that they create app version of this framework.
Con Documentation is a bit better than average
Documentation could be written better and clearer, with many more example than they currently have. Sometimes hard to find solutions for detailed css problems.
Con Learning curve seems low at first, but starts becoming steeper
Rails' simplicity is deceptive. It's learning curve is really low at first, and the huge number of tutorials and guides out there for starting with Rails make it even easier. But it starts getting harder and harder as apps become more complicated. If good code conventions and OO design are not followed, then the codebase will be all over the place and it becomes impossible to maintain it.
Con Too much magic
So much behavior is implemented with dynamic behind-the-scenes changes to existing classes that obscure bugs are way too common. Conflicting interactions between multiple plugins that both try to change the same objects are a particularly pernicious example.
Con Too much convention
Con Not a very popular language outside of web development
Con Bad performance
Among the slowest frameworks. If you want to scale, you will have to migrate to another land.
