Because you know a little bit of HTML/CSS/jQuery, why don't you try to build it as a cross-platform HTML5 mobile web app using Cordova/PhoneGap? There's a bar

Because you know a little bit of HTML/CSS/jQuery, why don't you try to build it as a cross-platform HTML5 mobile web app using Cordova/PhoneGap? There's a bar code scanner plugin for Cordova: https://github.com/wildabeast/BarcodeScanner https://github.com/wildabeast/BarcodeScanner And location can be accessed using the standard geolocation plugin for Cordova. Because it's a side project, it won't matter that the user interface is non-standard/quirky.