New: tap a wrong answer and instantly see why you missed it. Plain-English breakdowns for every question, fully offline. Free to start. All 50 states, all 8 endorsements.
Pass your 2026 CDL exam on the first try. Join over 1M+ drivers with 46,000+ reviews and a 4.9-star rating.
Miss a question and you instantly see WHY: a plain-English breakdown of your specific mistake, why the right answer is right, and a tip to lock it in. Works 100% offline.
Whether you are going for your CDL permit, Class A, Class B, or any endorsement, everything you need is in one app.
WHY DRIVERS CHOOSE US
• 46,000+ ratings at 4.9 stars — the most-reviewed dedicated CDL prep app
• Class A and Class B — full coverage for both
• All 50 states — questions matched to your local DMV
• Free to start — practice the core question bank at no cost
• Available in English and Spanish
• Works offline — study on the road, no signal needed
EVERY CDL ENDORSEMENT IN ONE APP
• General Knowledge
• Air Brakes
• Combination Vehicles
• HazMat (Hazardous Materials)
• Tanker
• Passenger Transport
• School Bus
• Doubles / Triples
Plus ELDT theory coverage aligned with FMCSA Entry-Level Driver Training requirements.
SMART STUDY FEATURES
• Why You Missed It — instant plain-English explanations on every wrong answer
• Passing Probability — see exactly when you are ready to book the test
• Weak Question Review — the app rebuilds sessions around what you keep missing
• Realistic Exam Simulator — timed tests that mirror the real DMV experience
• Progress Tracking — scores, exam history, and improvement trends
• Quick-Review Flashcards — rapid review for last-minute study
• Handbook Mode — browse every question and explanation by topic
HOW IT WORKS
1. Pick your state and the endorsements you need
2. Study leveled questions with instant explanations
3. Review the ones you missed until they stick
4. Take timed mock exams when Passing Probability says you are ready
5. Walk into the DMV knowing the material
WHAT DRIVERS SAY
"This is the only app that actually has the questions from the tests. Amazing!"
"I used this app only — no handbook — and passed all three tests back to back!"
"Helped me pass my HazMat endorsement renewal on the first try!"
FREE, WITH OPTIONAL UPGRADES
CDL Test Prep 2026 is free to use and supported by ads. Remove ads with a one-time purchase, or upgrade to Pass Pro for the full toolkit. Nothing is required to start studying.
ALWAYS UP TO DATE
Our question bank is updated to match the 2026 CDL handbook and DMV requirements across all 50 states — refreshed questions, current federal regulations, and the latest ELDT theory content.
Spot a question that looks wrong? Tap "Report mistake" inside any question. We read every report and fix what needs fixing.
ABOUT US
We are a small team focused on helping professional drivers succeed. We are not affiliated with any government agency or the DMV.
Questions or feedback? Email: coco.mobileapps@gmail.com
Download CDL Test Prep 2026 and start studying today.
—— Pass Pro (auto-renewable subscription) ——
Pass Pro unlocks the full exam-prep toolkit:
• Unlimited AI Tutor — a clear explanation for every question you miss
• Passing-probability insights with a personal study plan
• Unlimited full-length mock exams and retakes
• Ad-free studying
Payment is charged to your Apple Account at confirmation. The subscription
auto-renews unless cancelled at least 24 hours before the end of the current
period. Manage or cancel anytime in Settings > Apple Account > Subscriptions.
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LEGAL
Privacy Policy: https://coco-mobileapps.github.io/privacy.html
Terms of Use: https://coco-mobileapps.github.io/terms.html
I can only speak of the California CDL permit test… this is THE best app you can use. I tried another free app but it was very limited and didn’t have the same format. The way they repeat your wrong answers 2 more times before you can move on is very helpful. Repetition is key. They also repeat some of the questions from one section to to the next. They are all mixed up which makes it helpful. I took my written test today with my passenger endorsement and general knowledge and passed. There was only a couple questions that I didn’t come across in this app but all the other questions were exact and even written word for word. I answered very fast because I recognized the questions before I even finished reading it. I used the free app and there are ads, and they are annoying, but it’s a free app so stop complaining. The ads only pop up when you have either closed out the app and restarted the questions or between exercises. If you don’t like the loud ads, turn down the volume on your phone. Great job and making a useful and accurate study guide. My hat off to you. 🧢 Thank you.
So far, so good
gamechampion101
I started using this app about 2 weeks ago at the recommendation of my CDL instructor. I’m preparing to get my CLP before class and so far I have passed Air Brakes (90%) and Combination Vehicle (100%) and Doubles/Triples (100%). My method has been to read through the state manual for the specific section once, do all practice sections in the app, read through the manual once more, than take a practice exams in the app. Upon scoring above 90%, I go to the DMV and take the knowledge test for the subject I’ve been studying. At least for my state, the questions have accurately represented the test from the DMV.
Best app CDL app to practice before permit hands down
Alfonso Solivan jr
There is no other CDL prep test to download but this one. It’s spot on at least for the Pennsylvania one never snooped around other states exactly how is on the actual test is how it’s on here maybe a few words moved around other that it’s spot on. I never studied the manual nothing just kept testing myself over am over hundreds of times before I took my permit test passed all three in one shot went to school got my CDL. This is free compared to others you have to pay for an aren’t even real questions on the real test.
Incredible app to help you pass your CDL tests!
NowImSkinny!
I don’t even think I would have passed my CDL A tests without this app. It has all of the questions they ask you on the tests. I’m in Hawaii too and It has general knowledge, combination vehicles, air brakes, tanker, doubles and triples and hazmat! I have all those endorsements thanks to CDL test prep! It also tells you what answers are correct and why. I don’t even write reviews but I had to let the developer and prospective students know how amazingly helpful this app was! This helped me start my new career as a trucker. Thank you !!
Developer Response
Hi NowImSkinny!, aloha! Thank you so much for breaking your rule about not writing reviews to share this incredible success story with us and prospective students!Hearing that you passed your CDL Class A tests and secured all those crucial CDL endorsements—from Air Brakes to Hazmat—all the way in Hawaii is absolutely amazing! We purposely built our CDL test prep app to include detailed explanations of "why" an answer is correct so you can truly master the material, not just memorize it.Congratulations on starting your new career as a trucker! Thank you for making our CDL practice test app a part of your journey. Wishing you clear skies and safe travels on every mile ahead!
Class A or Class B — we now make it clear from the start.
Pick your license class and endorsements up front, and the app builds your study
plan around exactly what you need to pass. No more scrolling past questions that
do not apply to you.
Also in this update:
• Sharper state matching — your questions now track your state's handbook more closely
• Fixed a bug where certain questions could not be selected, blocking level progress
• Restored purchases now carry over correctly after reinstalling
• Faster loading across Practice, Test, and Daily Study
Spot a question that looks wrong? Tap "Report mistake" inside any question. We read
every report.
Good luck on your CDL exam — you've got this.
Version 5.7
The developer, Hanh Le, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Location
Identifiers
Usage Data
Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
Location
Identifiers
Usage Data
Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Hanh Le
Size
49.8 MB
Category
Education
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
