Abstract: The present invention provides a system and a method comprising a graphical user interface and delivered via the Internet and/or a mobile, tablet or wearable device, that articulate, establish, monitor and enforce a commitment contract between two parties by making visible the upfront/advance terms for users in a defined group to participate in and complete an action, activity and/or event, by notating agreed upon financial and/or non-financial penalties relating to such commitments, by tracking a user's adherence to such commitments, by conducting rebate/reward accounting, if applicable, and by conducting penalty accounting, if applicable. Further, the system and the method disclosed herein conduct accounting of financial and/or non-financial penalties, if applicable, that accumulate as surplus rewards as a result of non-commitment adherence by users, which then may or may not be distributed to all users in the defined group or a subset of users in the defined group based on a set of predetermined criteria.