Create Native iOS/Android App from a Mobile Web Project

This will be a quick and simple conversation of a mobile web project into a native app. Our client has a mobile web project running right now that interacts with a .NET database. The project allows them to monitor locations/speeds/data from vehicles that contain their tracking hardware. This is used by companies such as delivery companies, etc to always know where their delivery vehicles area. They want a native app build for iOS, and possibly Android if the pricing model to have both developed is feasible right now. The first page will be a simple log-in with your username and password. No one can use any aspect of the app if they don't have an account created by the admin already. There will NOT be an option for someone to create an account within the app. It must be done already by the admin within the pre-existing web structure. Once logged in, it will be a simple page with links to each individual vehicle they are tracking, as well as a map that displays the location of all vehicles. Graphical design layouts will be our responsibility, while it will be yours to build the native code to interact with their existing mobile web project, and take our graphical designs and incorporate them into the app itself.