Website conversion to mobile app for clocking in module

We are an EPoS provider with a team of developers. We have a web based application (written in Angular) to manage various aspects of our solution. One module is a clocking module for time and attendance. This is currently run in a browser on a mobile tablet. We are looking to find someone who can take the code we have written and convert this to an app to run on Windows, Android, and possibly iOS. It accesses the webcam to take a snapshot of employees when they clock in. Whether this is a native app or converted using Cordova/Phone Gap we don't know, happy to listen to suggestions of the best way to achieve this. End goal is to have an app which can be installed and once st up will load each time without needing to log in and also allows removes the issues currently being found using a browser. If teh app can also log down the tablet that would be perfect. The ideal solution makes the tablet dedicated to clocking in and prevents a user from accessing the operating system or any part of the device which would allow them to disrupt the application.