Android Application

The application should detect the location. Let the user fill review about that location. The location coordinates (latitude, longitude, and review) must be stored on the server. Later, when another user enters that location or in the area of 5-10 meters from the previously reviewed location. The review of that location must be shown as popup message. The user can close this popup. Remember the application should run on any Android phone. Complete code with all configurations, credentials must be handed over. A little training (if required) has to be provided. Thanks