try http://phonegap.com/ this is a platform where you can develop hybrid apps using CSS, HTML5 etc . Take some time learning these technologies and see for yourself if it suits your need. Do not engage yourself learning how they did it, try to learn thing and see what is the best fit for the problem at hand. What worked for them may not work for you at all.
1
solved What are the technology used to develop shopping apps like jabong, myntra, flipkart etc.? [closed]