4.9 / 5 from real drivers
Here's what test-takers are saying about Commercial Driver Prep.
"Passed my CDL General Knowledge on the first try after two weeks with this app. The explanations connect every answer back to the CDL Manual — that's why it sticks."
"HazMat endorsement was the one I was most worried about. The placarding tool and the ERG reference made the difference. 47/50 on the real test."
"I drive a school bus and needed Air Brakes. 13 practice tests, all explained, all free to try. Got the endorsement done in a weekend."
"The cost-per-mile and load profitability tools are bonus features I didn't expect. Use them every week now even though I passed the exam ages ago."
"I'm moving from a refuse truck into a tanker route. The Tank Vehicles questions were exactly what I needed. Worth every penny."
"My husband was stressed about retaking after a 10-year gap. Quick Reference sheets refreshed everything fast. Passed clean."
"Solid doubles/triples coverage. Would love more pre-trip videos but the question bank is the best I've used."
"I sat for the General Knowledge and Air Brakes on the same day. Used both apps and aced them. The mock tests calibrate you for the real timing."
"Had to renew my HazMat and didn't want to slog through the manual again. This app got me up to speed in three evenings."