CDL Practice Test® 2026 vs CDL Study Prep

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.™

CDL Prep – Pass Your Commercial Driver’s License Exam CDL Prep is a complete study tool designed to help you pass your Commercial Driver’s License (CDL) written exams with confidence. Whether you’re preparing for the General Knowledge test or studying for endorsements, CDL Prep gives you realistic practice questions, timed exams, and instant feedback. Exams Covered: General CDL Knowledge Air Brakes Combination Vehicles Hazardous Materials (Hazmat) Passenger Tank Vehicles School Bus Doubles / Triples Key Features: 500+ CDL-style practice questions Exam Mode with real test timing Practice Mode with instant explanations Randomized answer choices Score review and progress tracking Clean, driver-friendly interface Offline access for studying anywhere Exam Mode: Simulate the real CDL exam with timed tests: 50 questions in 60 minutes (General Knowledge) 20–30 questions in 40 minutes (Endorsements) Review your score and learn from missed questions. Practice Mode: Study at your own pace with instant feedback to help you understand CDL rules and safety principles. Whether you’re a first-time CDL applicant or upgrading endorsements, CDL Prep helps you study smarter and pass faster. Download CDL Prep today and start driving your future forward.