Hi There,
I have excellent experience in front end,Asp.Net MVC,web services, css3, html5, angular.js, bootstrap, responsive layout and mobile technologies.
Have experience in cordova, ionic and app building.
please look through the sites developed.
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Your requirement will be done using cordova applications which will work common gateway for all devices and also share contact with multiple platform devices.
please let me know your conerns.
Thanks, Vignesh