Apple’s upcoming iOS Maps app will include Yelp’s “check in” feature to let users broadcast their whereabouts to friends, according to a “Bloomberg” report (http://macte.ch/Er08l).

Basing his on materials Apple distributed to software developers, Apple Maps, which will replace Google Maps as the default location service in iOS 6 later this year, will allow users to communicate through Yelp (http://www.yelp.com) without exiting the map and opening a new app, the article adds.

Yelp is a website that lets users review businesses of all sorts. It introduced a check-in service for mobile phones in 2010 in an effort to help local merchants build loyalty with regular customers. Integration with Apple Maps may help Yelp challenge Foursquare Labs and Facebook, two leading providers of check-in services, according to “Bloomberg.”