MDMBA2020
jz4analytics
As everyone else has said, GMATPrep scores are very predictive and any third party test, while good for practice, is much less so. Still, the discrepancy is large enough that you may want to take the second free GMATPrep exam under realistic conditions to hone in on your true score.
I'd also recommend buying the two additional GMATPrep exams, and only then doing one retake of each (for a total of eight official CATs). I took four full GMATPreps before my exam - 650 for the first one early on, 680 (retake of first), followed by a 700, and a 710. I got a 700 on the GMAT (plan to retake). [For what it's worth, I took the free Veritas exam before any real studying and got a 690.] I think the real GMAT questions are worded in a way that closely reflect your ability.
///EDIT/// I may take VeritasPrep up on its offer of free CATs for official GMAT scores and let you know how close they are to each other.
I sure hope the GMATPrep tests are more like the score I will get. I completed 5 more Veritas tests and my score ranged from a 620-670. I plan to take the second GMATPrep test the day before test day under realistic conditions. We'll see what happens!
Sailing in the same boat.
Got a 750 in my GMATPREP 1
Veritas Prep 1 - 650
Veritas Prep 2 - 660
Veritas Prep 3 - 670
Veritas Prep 4 - 650.
Fingers crossed for the Actual exam.
Even though Veritas tests are tough, they are a a treasure chest of good questions.
P.S - I too got the tests free of cost as part of their ongoing fine-tuning.