Phase 2 will consist of 65 participants. These participants will be randomized to either 1) CR alone along with answering questionnaires regarding quality of life and satisfaction of care or 2) CR (Cardic Rehab), along with the software application and the quality of life, satisfaction of care and software application questionnaires. All participants (both Phase 1 and Phase 2) enrolled into the study will be status-post percutaneous coronary intervention (PCI). The potential participants will be asked to participate while still in the hospital and will be approached as soon as possible after agreeing to participate in CR,. The participants who enroll in Phase 2 will be randomized prior to discharge from the hospital.