Dozens of apps buzz your phone when friends are nearby, and all of them are annoying. Highlight notifies you when someone nearby knows your sister, while Foursquare lets you know when a friend checks in at Walgreen’s down the street.
Dozens of apps buzz your phone when friends are nearby, and all of them are annoying. Highlight notifies you when someone nearby knows your sister, while Foursquare lets you know when a friend checks in at Walgreen’s down the street.