Direct Answer
FICO and VantageScore are both 300–850 scoring models, but they weigh factors differently and are calculated by different companies. FICO is used in 90% of lending decisions; VantageScore is mostly seen on free credit monitoring apps. They can differ by 20–50 points on the same report. Here at Credisure Fix, we work to optimize the data both models pull from, so every score moves up.