CKE Restaurants launched a campaign to promote downloads of their Hardee's and Carl's Jr. mobile app, which allows users to earn rewards for checking in at locations. The first phase focused on promoting the app to existing fans through social media and their websites. The second phase partnered with mobile advertisers to further promote the app and incentivized users to share it socially by receiving a free coupon for every five check-ins. The campaign was successful, with the app reaching the top five most downloaded free apps and over a 30% redemption rate for mobile coupons.