The application mainly consists of a map view, once opened it gets user GPS or Network location and requests for nearby venues from Foursquare APIs. Application should cache the retrieved venues so that on next application start up, cached venues are displayed until fresh new venues are retrieved from server. It then places pins of each venue on the map, pin images should be venues images retrieved from Foursquare. Clicking on any pin should open an info window with the name of the venue, when clicking on the info window allow user to check-in in this venue.  For user to check-in, this user should be logged in using  OAuth implementation of Foursquare login.