Android and ios apps connected to drupal 7 website

The project is pretty simple, basically we need an application for android and ios connected to a drupal7 website. In the web site we have a map(gmap) with various points/nodes each with images/video and some text. The App should connect to the website and load the nodes near the location of the smarphone through GPS(geolocation prox is installed on the site). The map in the website is a view and it has many filters to restrict the number of points on the map, and these must be usable also in the app. TABS So at list the app should have 2 tabs, one called "map" and one called "search". the first must contain the map with the points and the second the parameters for the search. -MAP The map in the website is a "view" and it has many filters to restrict the number of the on the map, and the must be usable also in the app. At a tap on the point on the map the app must load the node content with images and embed videos/sound -SEARCH The search tab must have 4 filters: one called category(taxonomy terms, simple dropdown), the second called user(filter by user author), one called date(filter by the field date) and finally one called search(search a place on the map, switchable with gps data). The last filter called search, must center the map on the user location(by GPS data or the search form). All this must be clear and simple