CDL Prep

9.13

Jeffrey Diaz

4.56

5,438 reviews

1,000,000+
Downloads

Free

Pass your state General Knowledge CDL exam with the help of CDL Prep.

4.56 · 5,438 reviews · 1,000,000+ downloads

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About CDL Prep

CDL Prep is an education app developed by Jeffrey Diaz.

How many times has CDL Prep been downloaded?

CDL Prep has been downloaded 1.5 million times. In the last 30 days, the app was downloaded 13 thousand times.

What is the rating of CDL Prep?

CDL Prep is rated 4.56 out of 5 stars, based on 5.4 thousand ratings.

Is CDL Prep free?

CDL Prep is free to download. The APK download size is 9.34 MB. The latest version available is 9.13. The last update was on August 7, 2026.

What are the requirements for CDL Prep?

CDL Prep requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play June 2014.

Description

CDL Prep is the best way to prepare for the Commercial Drivers License General Knowledge, and various endorsement exams.

More data about CDL Prep

Price	Free to download
Total downloads	1.5 million
Recent downloads	13 thousand
Rating	4.56 based on 5.4 thousand ratings
Ranking	Medium ranked
Version	9.13
APK size	9.34 MB
Number of libraries	16
Designed for Android	6.0+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the CDL Prep app

CDL Prep compared with similar apps

Common keywords of similar apps

Answer Score Average Exams Topics Minutes Answers Feedback Performance Questions Cdl Prep General Knowledge Exam Commercial Endorsement Practice Mode Review

Keywords missing from this app

Test Https Dmv Study App Hazmat Tests License Pass State Real Drivers Class Air Vehicles Official Brakes Free Permit Combination Driver Detailed Explanations Inspection States Access Vehicle Pre Time School Progress Driving Question Full Manual Trip English Passenger Triples

Google Play Rating history and histogram

Rating history

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4.5K

350

130

110

360

Downloads over time

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CDL Prep has been downloaded 1.5 million times. Over the past 30 days, it averaged 450 downloads per day.

Changelog of CDL Prep

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Developer information for Jeffrey Diaz

Jeffrey Diaz

CDLPrepApp@gmail.com

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Comments on CDL Prep for Android

★★★★★ Lares Matos · May 8, 2026

Best app for cdl permit all the questions you see in this app they come out on test only very few there were not. Pass with a 100% general knowledge, combinations,air breaks thanks for being so accurate with the questions.there are alot of apps that the questions they give you don't come out on the test will recommend this app to everyone. Thank you guys for provide me we such a great tool.👍🎉 I recently relocated to another state, and I had to retake the Hazmat endorsement pass with 100% best app

★★★★★ zeo Black · Aug 21, 2026

I'll be honest I passed all 3 of my test using the app on the first attempt. I'll admit about 90% of the answers from cdl prep was on my tests I even got my tanker endorsement. Yea an ad pop up after the end of you're exams but who cares its free

★★☆☆☆ Murilo Antunelli · Jun 19, 2026

Almost failed my hazmat after nailing 100% a dozen times on the app. It needs to cover more questions or be updated.

★☆☆☆☆ Yah Carter · Jun 5, 2026

Please don't use this app they have several wrong answer example your eyes see hazard to the time the brain knows that this is a hazard is incorrect the answer is The brain tell the foot... like y'all cause me to fail my test at motor vehicle

★☆☆☆☆ Gage Grogan · Jun 19, 2026

Bro let me pay for no ads this is aids when doing a test and one pops up kills the mood

★★☆☆☆ Jonathan McGilvery · Jul 3, 2026

Was helpful in the main parts to get your permit. Was not helpful with Doubles/Triples testing. App asked the same questions repeatedly. I failed twice and on the second time, I realized most of the questions asked on the test was not on this app.

Google Play Rankings for CDL Prep

Top rankings

Rank	Country	Category	List
141	United States	Education	Top Free

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Ranking history in United States

Ranking history

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Technologies used by CDL Prep

10 permissions · 16 libraries

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