A lot of long-time users of Zen Cart have a template that was developed before mobile devices became so popular. These store owners have a difficult decision: give up the template they have grown to love, and start again with something responsive? Or just not worry about mobile traffic?
Now there’s a third choice. With my Zen Cart Responsive Fallback mod, you can keep your desktop template, but if a user visits on a mobile device, the template automatically switches to the built-in responsive_classic template, which was introduced in Zen Cart 1.5.5. It’s the best of both worlds!
Here’s a page rendered in a non-responsive desktop template:
and here’s the same page when viewed on a mobile device: