Hello sir,
Reference your inquiry we have gone the website of yours and would like to inform that we can develop an Android app for you with a professional look, for a app to link with the api's and website, we will need to ensure you have all the source files with you, also we will need to create a web-service which will server as a intermediary between the website and mobile app.
Please feel free to get back to us if you have any queries.
Regards,
OK Team