Constant Contact, a Waltham company that provides online marketing services to small businesses, has acquired privately owned CardStar Inc., a loyalty platform that helps shoppers stay connected to their favorite merchants.
Boston-based CardStar develops mobile applications that extend the use of loyalty cards and mobile coupons. One example: A consumer digitizes a loyalty card, then shows the bar code on his or her iPhone screen at the checkout.
Financial details of the transaction were not disclosed.
In a statement, Constant Contact’s chief executive, Gail Goodman, said the CardStar platform “takes advantage of the anytime, anywhere nature of mobile - making it an excellent complement to our growing suite of engagement marketing tools for small businesses.
