There are two major credit scoring models used in the United States: FICO and VantageScore. Both run on the same 300-850 scale, both use the same underlying credit report data, and both aim to predict the same thing — the likelihood you will repay debt as agreed. But they are built differently, and the number each one produces for the same person can differ by 20 to 50 points or more.
Key Differences
| Factor | FICO Score | VantageScore |
|---|---|---|
| Used by lenders | Used in the vast majority of actual lending decisions | Mostly used for free educational score apps, less common at the point of lending decision |
| Created by | Fair Isaac Corporation | Jointly developed by Equifax, Experian, and TransUnion |
| Minimum history needed | 6 months of credit history, 1 account reported in the last 6 months | 1 month of history, even with no account currently open — more accessible for newer files |
| Current versions in use | FICO 8 most common; FICO 9 and FICO 10T increasingly used, especially for mortgages | VantageScore 3.0 and 4.0 are current; most free apps use 3.0 |
| Where you typically see it | Often available through your card issuer's free score feature, or by request from a lender | Credit Karma, many bank apps, and other free score tools |
Why This Matters
If you check your score on a free app and it shows VantageScore 3.0, that number is directionally useful — it tracks your overall credit trend accurately — but it is very likely not the exact number a mortgage lender or auto lender will pull when you actually apply. Being surprised by a different number at the point of a real application is common, and it is not a sign that anything is wrong; it simply reflects that a different model calculated it.
Which Score Should You Actually Trust?
For big-decision applications — mortgages, auto loans, major credit cards — ask the lender directly which score and version they use if it is not stated, or check whether your existing card issuer offers a free FICO score specifically (many do, distinct from VantageScore). For day-to-day tracking of whether your credit habits are moving in the right direction, either model works fine since they respond to the same underlying behaviors — paying on time, keeping utilization low, and avoiding excessive new credit.
Understand what is actually driving your number either way. See What Affects Your Credit Score? for the five factors both models weigh, or Credit Score Ranges Explained to see where your number falls.
