Test your drivers.
Honestly, the app’s become my filter for new drivers. The bad apples usually show themselves pretty fast.
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About
Prepare for your Commercial Driver's License written knowledge test with extensive practice questions, timed exams, and smart review features. Track your progress and identify weak areas to strengthen your understanding of key CDL categories. Ideal for individual learners and employers screening driver readiness.
✓435 CDL practice questions
✓Detailed explanations for each question
✓Timed exam mode simulating test conditions
✓Smart review for forgotten questions
✓Mistake review to strengthen weak areas
✓Progress tracking dashboard
✓Offline study capability
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What's New in CDL Master
1.33
October 30, 2026
Improvements and fixes. New: Settings ▸ Privacy ▸ Share Usage Data lets you choose whether to share anonymous usage data that helps us make CDL Master better. Prices on the company and fleet testing screens now show in your local currency.
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Subscriptions & In-App Purchases
Monthly Access
Full CDL prep access. Renews monthly.
$9.991 Month
Price Updates
October 31, 2026→$9.99
July 21, 2026→$12.99
May 8, 2026→$19.99
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FAQ
What CDL categories does CDL Master cover?
CDL Master covers General Knowledge, Air Brakes, Combination Vehicles, and Hazardous Materials. It offers 435 practice questions across these essential CDL categories, updated for 2026 prep.
Can I study for CDL Master offline?
Yes, you can study offline with CDL Master. This feature allows you to prepare for your CDL permit test without needing an internet connection, making it convenient for on-the-go learning.
How does CDL Master help me track my progress?
CDL Master features a Progress Dashboard that tracks your accuracy, study streak, completed questions, and category-by-category performance. This helps you identify areas needing more attention.
What are the subscription options for CDL Master?
CDL Master offers Weekly Access for $4.99, Monthly Access for $9.99, and Quarterly Access for $24.99. These subscriptions unlock all categories, questions, and advanced study features.
Does CDL Master have ads?
No, CDL Master is ad-free. You can study without interruptions from advertisements, ensuring a focused and efficient learning experience.
Is CDL Master suitable for employers?
Yes, CDL Master includes optional company/fleet testing tools for employers, schools, HR teams, and recruiters. It allows them to test driver readiness before hiring or exam submission and share result reports.
What is the passing target in the timed exam mode?
The timed exam mode in CDL Master uses a realistic 80% passing target. This helps you gauge your readiness for the actual CDL written knowledge test.
How often is CDL Master updated?
CDL Master was last updated on October 30, 2026, with version 1.33. The content is updated for 2026 CDL preparation, ensuring you are studying with current information.
