MAC

MAC (Make A Commit) App is designed to let a person (or group) makes a public commitment (to family member, friends, colleagues, business associates, group members etc.) to give up smoking, drinking, saving Amur Tigers in Siberia, getting an 'A' grade, or raising money for orphans, etc. By making a public commitment you will have to live up to the promise since the user made it public via email (your contact list), social sites like Facebook, Twitter, Google+ etc.