The zeroerror.in ranking system is how we determine our top Tutors through assigning marks to your Pro Score. Your Pro Score is a comprehensive system which takes into account the completeness of your profile, the ratings and reviews you receive, your participation in our Q&A section etc. Your Pro Score helps you increase your visibility since it is an indication of what a student looks for in an ideal Tutor. The higher the Pro Score the more likely it is that a Tutor is going to be hired by a student.