A FICO credit score is the credit score developed by Fair Isaac Corporation. It is the branded score that is used by the majority of lenders. You can order your FICO score from myFICO.com.
A credit score that you purchased from anywhere else is probably not your FICO score. There are many credit scores in used by various creditors today. Even the credit bureaus have their own versions of the credit score. Equifax calls its credit score beacon, Experian calls it plus and TransUnion calls at empirica.
While different credit scores may be different in number to each other the likelihood is that the credit worthiness they represent is almost equivalent to each other. Different credit scores have different range of numbers and grades to represent the risk of a consumer. However getting your FICO credit score will be a generic and common way to measure your creditworthiness. Your FICO score will give you an ample idea of what your credit score across various other credit scoring models will be.