CDL Prep 2023 By ABC 4+

Commercial Drivers License

Thanh Hung

Designed for iPad

    • 4.9 • 26.1K Ratings
    • Free
    • Offers In-App Purchases



Prepare for your Commercial Driver's License (CDL) exam with our CDL Practice Test app!

Obtaining a CDL can be a challenge, but our app is designed to help you succeed. Whether you're taking the test for the first time or need a refresher, our app offers a variety of practice questions for each CDL category, including General Knowledge, Air Brakes, Cargo Transport, Combination Vehicles, Double Triples, Hazardous Materials, On Road Driving, Passenger Transport, Pre Trip Inspection, School Bus, and Tanker.
Our app is designed to make learning easy and enjoyable, helping you remember the material for the long-term. With our CDL study guide, you'll gain a feel for the test's material, difficulty level, and question types. While the DMV does not release the exact questions you'll see on the test, our app offers a variety of practice questions for each category, allowing you to prepare for the exam with confidence.
This app includes CDL practice tests for all 50 U.S. states, including Alabama, California, New York, Texas, and more. You can also practice on our website at using your PC. Our website offers the same practice questions, detailed explanations as our app and your process will also be synchronized between your devices, which will ensure the best preparation for your CDL exam no matter where you are.

Disclaimer: Our app is not associated with any DMV and is not intended to replace official driving education courses. For official law descriptions and administrative centers, please consult the respective state body. We highly recommend taking an approved driver education course to learn the rules and laws of the road and to develop responsible driving habits.

ABC Elearning Pro subscription.
- ABC Elearning Pro includes full access to the specified course for the duration of the subscription period.
- All prices are subject to change without notification. Promotion prices and limited-time opportunities may be available for qualifying purchases made during the promotional period. We are unable to offer price protection, refunds or retroactive discounts for previous purchases in the event that we offer a promotional offering or price reduction.
- Payment is charged through your iTunes account at confirmation of purchase.
- Your iTunes account will be automatically renewed and charged for renewal unless turned off in iTunes Account Settings at least 24 hours before the current subscription period ends (including the free trial period). The unused portion of the free trial is forfeited after purchase.
- Your subscriptions may be managed by the user and auto-renewal may be turned off in the user’s iTunes Account Settings after purchase. However, you are not able to cancel the current subscription period during its active subscription period.

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What’s New

Version 3.7.0

This version includes performance improvements:
- Enhanced stability
- Regularly fixed bugs.

Ratings and Reviews

4.9 out of 5
26.1K Ratings

26.1K Ratings

chriszx10rx ,


Seems like i finally found an app that actually ask questions from the cdl book. I’ve been taking practice test from other online platforms and was thinking i was going to straight pass the test with ease.

Well when i took the hazmat test, the question never revolved around anything that I practiced for and i wasted $100 dollars thinking eventually they would give me questions that matched up to what I practiced. Nope lol. People at the dmv gave me the book. Then told me to leave online stuff alone cause none of the material on the net is on the test. Everything in this book is what you get tested on.

I then also went and compared what i was practicing to what’s in the book. Sure enough nothing on the practice test was in the book😅 This app though is way more accurate to the book though. Probably not fully accurate but it’s a good amount of stuff here that you can find answers in the book. Give it a shot

Developer Response ,

Thank you very much for sharing your valuable and useful feedback. If you have other feedback or suggestions, please write to us at We would love to hear from you!

AuMoVi ,

Great test prep tool!

I would highly recommend this app to anyone studying for the CDL written test!

Recently I was hired to drive school buses in my district. One of the first things I needed to do was pass my written test to get a learners permit for class B with passenger & school bus endorsements. I’ve never been real great at “read the section, take the test” so I looked for practice tests so I’d know what I did / didn’t still need work on and found this app. I used it in the free mode for 4 days, practicing a different section each day, then on the 5th day I reviewed the question bank and took the tests (4 sections: General knowledge, air brakes, passenger safety, and school bus) and passed with flying colors! All 4 sections were passed in under an hour. Out of all the questions combined I think I only ran into 3 questions I opted to skip because I had not practiced them on here, didn’t know the answer, and felt I’d rather skip it than to get it wrong, but overall I knew that I knew my stuff.

Carlos_J93 ,

Great App!

This app helps to make it easy to study but not all
of the questions present themselves in the test. Math questions are introduced in the app which are not done at all in the exam because you can’t have any calculator or anything on you. Also in order to come in contact with all the variety of questions you have to do every single part of the sections and extra tests which is a little annoying. I wish you could just see the questions and answers in a separate part. Otherwise the app is functional and helpful if you have read the CDL manual. Don’t rely on the app alone. The app does set up a good function to get through all the material by the time of your choosing.

Developer Response ,

Thank you for taking the time to share your feedback about our app. We will take into consideration your suggestions and try to improve our app in the next versions.

In-App Purchases

CDL Practice Test Pro
Experience Pro ver with various new features

App Privacy

The developer, Thanh Hung, 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

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