CDL Practice Test® 2026 vs CDL Prep Pro

CDL Practice Test® is the original CDL exam prep — and the largest question-and-answer pool available. Practice is free. Every question includes a reference to the FMCSA CDL Manual. Pass the 2026 written exam for Class A, Class B, and every endorsement. 1,600+ current questions with answers and See Why on every miss, CDL manuals for all 50 states, and official-length Exam Mode. 6,000+ ratings at 4.8 stars. Live support 9am–5pm CDT. No account required. WHY THIS IS THE ONE • The original CDL Practice Test® — first on the store, built for the written exam, not a clone • Largest available practice bank: 1,600+ questions and answers, reviewed throughout the year for 2026 • Class A and Class B • Every endorsement, including School Bus • See Why explanations when you miss • Progressive unlock — hit 80% and move on • Official-length Exam Mode, by topic • State CDL manuals for all 50 states • Live support from 9am to 5pm CDT • Practice stays free. Subscribe only when you want Exam Mode. WHAT YOU STUDY • General Knowledge • Air Brakes • Combination Vehicles • Hazardous Materials • Tanker • Passenger • Doubles / Triples • School Bus HOW IT WORKS 1. Open the app. No registration. 2. Practice by topic. Wrong answers get a plain-English See Why. 3. Score 80% to unlock the next set. 4. When you are ready, Exam Mode uses official counts: General Knowledge 50, Air Brakes 25, HazMat 30, and 20 on Combination, Doubles/Triples, Passenger, Tanker, and School Bus. 5. Walk into the DMV having already sat the test. PRACTICE IS FREE. EXAM MODE IS OPTIONAL. The question bank, See Why, and 50-state manuals are free. Exam Mode is the subscription — weekly, monthly, or yearly — for drivers who want the official-length simulator before test day. Restore purchases any time from the paywall. This app covers written exams in all 50 states. Practice with Purpose. Pass with Confidence.™

The fastest way to pass your Commercial Driver's License exam — on the first try. 500+ real practice questions across every major CDL section, plus state-specific rules for all 50 states. 100% free — no paywalls, no locked questions. WHAT'S INCLUDED: • General Knowledge — core CDL concepts • Air Brakes — master the most-failed section • HazMat — full hazardous materials bank • Combination Vehicles — trailer & coupling • Passenger Transport — bus endorsement • School Bus — complete question set • State-Specific Rules — local CDL laws for all 50 states SMART STUDY FEATURES: • Smart Review — automatically focuses on questions you've missed • Bookmarks — save tough questions for later • Progress tracking — accuracy and completion per section • Daily streaks and XP to keep you motivated • Instant explanations after every answer — know why, not just what • Mock exam mode — 50 questions, 60 minutes, simulate the real test Optional one-time in-app purchase removes ads — every question stays free either way. Whether you're a first-time CDL applicant or brushing up for a specific endorsement, CDL Prep Pro keeps your study sessions sharp and efficient.