Mirth is an online loyalty program that rewards restaurant customers for their loyalty and helps businesses recognize, appreciate and connect with customers. Mirth members sign up at www.mirth.ly by securely inputting their credit card(s) and email into the system. Mirth’s loyalty card system is card-linked through CardSpring so that through one swipe of any Mirth registered credit card a Mirth member becomes eligible to be a Mirth regular and receive rewards for returning to a given Mirth merchant. Mirth allows businesses to define their parameters of rewards, for example, 50% off the bill on the fifth visit or $10 off the third visit. The rewards and the frequency for a regular are determined by the establishment.