hi there,
for my experience, you have to use mobile widget in order to make it work mobile. there are some widget for responsive web application, however when using these widgets for mobile the touch feel is not smooth.
Hello Armands,
From my side I believe that the best option for testing Mobile app before you deploy it to the Apple or Google store is creating Hybrid app for your IP address and test it locally. On that way you will certainly know how it will work after you deploy the app to the Apple or Google Store and you will test real .ipa or .apk file (that will be deployed to the Stores).