CDL PREP TEST 2026 - 2027

Pass your CDL written exam on the first try! Master General Knowledge, Air Brakes, and all endorsements with our complete study guide and realistic mock tests.

Pass your CDL exam on the first try — guaranteed confidence, zero guesswork.

CDL Exam Prep 2026 is the most complete study companion for anyone preparing for the Commercial Driver's License permit test. Whether you are aiming for Class A, Class B, or Class C, this app covers every topic the DMV will test you on. Built by drivers, for drivers.

WHY DRIVERS CHOOSE CDL EXAM PREP

Over 12,400 drivers have used our app to pass their CDL permit test. With 898 practice questions across all 12 official CDL knowledge areas, you get the most realistic exam preparation available on your phone. Every question includes a detailed explanation so you understand the reasoning behind each answer.

COMPLETE QUESTION BANK — 12 CATEGORIES

General Knowledge, Air Brakes, Combination Vehicles, Hazardous Materials (HazMat), Tanker Vehicles, Doubles & Triples, Passenger Transport, School Bus, Pre-Trip Inspection, Driving Safety, Vehicle Systems & Maintenance, and Road Rules & Regulations.

7 STUDY MODES

1. Quick 10 — Ten rapid-fire questions for a quick session.
2. Category Practice — Focus on one endorsement or knowledge area.
3. Timed Challenge — Build exam-day speed under the clock.
4. Mock Exam — A full 150-question simulation with scored report.
5. Review Mode — Revisit every question you got wrong.
6. Daily Challenge — Fresh themed questions delivered daily.
7. Bookmarked — Save tricky questions and drill them until they stick.

SMART FEATURES

• Spaced Repetition — Automatically resurfaces questions you struggle with at optimized intervals for long-term memory. • Diagnostic Assessment — Reveals your strongest and weakest areas so you know exactly where to focus. • Personalized Study Plan — A custom schedule that adapts as you improve. • AI Tutor — Get plain-English explanations, mnemonics, or real-world examples on demand. • XP & Leveling — Earn points, level up from Learner Permit to Road Legend. • Daily Tips — A new CDL study tip every day. • Progress Tracking — Detailed stats, readiness score, and visual charts. • Dark Mode — Study comfortably in any lighting.

START FREE

Download and access 180 free questions across all 12 categories — no account required. Upgrade anytime to unlock the full 898-question bank, mock exams, AI tutor, spaced repetition, and personalized study plan with a free trial.

Study anytime, anywhere. On the couch, at the truck stop, or on your lunch break.

Purchases, subscriptions and terms

You will need to purchase at least one subscription to unlock access to all features, content areas and questions. Once purchased, the cost will be deducted directly from your Apple account. Subscriptions will automatically renew and be charged according to the rate and term chosen for the subscription plan. If you need to cancel your subscription, please do so no later than 24 hours before the end of the current term or your account will be automatically charged for renewal.

You can manage your subscription by turning off auto-renewal in your account settings in Apple after purchase. If a free trial period is offered, any unused portion will be forfeited at the time you purchase your subscription (if applicable).

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This Exam Prep App is not affiliated with any testing agency, certificate, test name, or any test name trademark. The practice questions and resources are for study purposes only and do not guarantee certification or reflect actual exam performance.

If you have any questions or comments about your use, please email us at suport@prepmastery.org and we will resolve them for you within 3 working days at the latest.