Together with Tammo ter Hark from Tools for Research I have been developing a solid responsive template for the open-source survey tool Limesurvey. This template comes in two flavors: free and premium. It has been a joy to see that we've given some back to the large community of limesurvey-users. Since May 2015 the templates are available online, but development (as always) needs some attention as the plethora of uses with this survey-tool is mind-blowing. We are working on it on and off in our spare time.
Currently Limesurvey is overhauling its core which has severe impact on existing templates and the work involved to cater for the differences in the underlying code. At the moment of writing it's not clear when the transition to a new stable release has finished.
Check the live demo