CDL Prep: Practice Tests

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About this app

Independent study app. Not affiliated with, endorsed by, or representing FMCSA or any government agency. Official information: https://www.fmcsa.dot.gov/cdl

No subscription — one purchase, no ads, no account. Study offline for the CDL written knowledge test.

Three sections, like the real test
- General Knowledge (required for every CDL applicant) is free, unlimited
- Air Brakes and Combination Vehicles unlock with one purchase
- Each section's mock exam matches the real test's question count and 80% pass line

Every question has a source
- Questions are original — written by us, not copied from any manual
- Each one cites federal regulation (49 CFR Part 383) or a state commercial driver's manual, with a link you can open and check yourself

Practice, then test yourself
- Practice mode: answer, see the explanation and source right away
- Mock exam: the same question count and pass line as the real test, with a pass/fail result and a breakdown by topic
- Missed questions go into a spaced-repetition review list

Free, always
- General Knowledge practice, unlimited
- Daily streak tracking

One purchase unlocks
- Air Brakes and Combination Vehicles practice
- All three mock exams
- Weak-spot review of missed questions
- One payment. No auto-renewal.

Honest about what this is
- This app is not affiliated with, endorsed by, or produced in cooperation with FMCSA or any state DMV
- A good score here does not guarantee you will pass the official exam
- The real CDL knowledge test is normally taken in English; explanations in this app are available in 9 languages to help you study, but the official exam itself is not multilingual in most states

Your data stays on this device
- Progress, streak, and the review list are stored on your device only. No account, no ads, no analytics (purchases are processed by Google Play).
- You can erase all progress at any time from Settings.

Terms of use (Google Play Terms of Service): https://play.google.com/about/play-terms/
Privacy policy: https://apps.furimatch.com/privacy.html
Practice tests with sources
Updated on
Oct 30, 2026

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