May be you should look at webview
.. its a widget which wraps your webapp to android webview, basically It means your webapp will open in a browser but it will give look and feel like an mobile app .
here are some tutorials and information about webview
from android-sdk
and xda-developers
http://developer.android.com/reference/android/webkit/WebView.html
And Also check this answer too,
is Phone Gap capable of converting a php web app into an iphone/android app?.. You can later on, add some features to the application by adding geolocation features for example. Here is an example using Apache Cordova https://auth0.com/blog/converting-your-web-app-to-mobile/
let me know if you want any further guidance......