Carl's Jr. Offers iPhone, Android App Gustavo Arellano | Posted on November 15, 2010 I haven't eaten at Carl's Jr. in years–still sore at them about eliminating their small cheeseburger–and do not understand the appeal of Foursquare. So maybe I'm not the most ideal person to report that Carl's Jr. has created a smartphone app–but the premise is pretty good. ] AdAge had the scoop last week: Eaters check into the app anytime they visit a Carl's (or Hardee's, but who cares about them since we don't have them in OC) and are eligible for free prizes. That's cool, but only problem: the program doesn't debut until next year. Gustavo Arellano