Greetings,
as the Application that you are actually asking is not just a simple website but instead a fully Application that needs to be developed and also TESTED in REAL devices i can make this Application for you in Phonegap(Cordova) that it will be based on HTML5, CSS5, Javascript / Ajax , and JSON / XML it depends what your server is giving back as a response either from your API (if you have developed one) or from whatever entry access points the Application can access and then it can compile into a Native Application either for IOS or Android or whatever you need it.
I own an iPhone 5C with the latest IOS and also Android Phones & Tablets that i can use for Real testing of the application.
Meanwhile while the program / application it is in the developing and -or- during the testing phase, there is a chance (as most of the people do) that maybe that you will need some changes either because you saw something that it needs to be added or changed. :)
That means that you also need someone that you will be able to find and communicate with him, that is something that i can guarantee to you.
That you can find me either through Email, Skype, or Phone Number (my real Mobile Phone Number) that you can talk / write to me in English or Greek (Greek is my native language), and as far as my English comes most customers of mine that are from USA they seem to understand what i am saying perfectly.. :)
Thank you in advance,
Georgios