Foursquare

Foursquare is an app that can be accessed through an iPhone, Andriod, and Blackberry that helps you and your friends make the most of where you are. Foursquare allows you to share and save the places you visit. Based on where you have previously checked in, Foursquare will give you personalized deals and recommendations for where you can go next. You can search for anything or browse popular categories. You can even discover insider tips and lists from local experts, brands, and even celebrities!

Foursquare is the number one featured  free app on the App Store for the iPhone. Over 25 million people worldwide use Foursquare with recorded check ins being over 2.5 billion. Foursquare can be accessed and found through social media websites such as Twitter, Facebook, Google Plus Flickr, and MeetUp.

Foursquare is also used by many businesses and brands. For small business or large chains, the app has many different tools that helps them attract more customers and gives the customers updates on a business or brand. This app allows people to see where their friends have been through so many different ways of communication bringing everyone closer together.

Sources:
https://foursquare.com/about/