Pass your state General Knowledge CDL exam with the help of CDL Prep.
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 1.4 million times. In the last 30 days, the app was downloaded 12 thousand times. It is ranked in the top 100 education apps.
What is the rating of CDL Prep?
CDL Prep is rated 4.58 out of 5 stars, based on 5.3 thousand ratings.
Is CDL Prep free?
CDL Prep is free to download. The APK download size is 9.35 MB. The latest version available is 9.12. The last update was on June 19, 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.
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5 stars! This app helped me pass my tests 100%. I did the practice tests for about 5 hours. Went in the next day and got my permit! Thanks to CDL Prep!
★★★★★Sim Pete· Feb 27, 2026
Passed ny exam is the best I recommended it for anyone fof the cdl test I practice those questions 239 for several time I passed today general knowledge only for today
★★★★★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
★★☆☆☆Martin C· Feb 26, 2026
Does the job of preparing you for exams. Memorizing. My gripe is you never retain any information with this app. There's no context. Boom you're talking about draining air from tanks. Im new. I don't even know how many tanks there are in a truck much less know which specific one its talking about. Water and oil in tanks? Draining the air from the same tank? What is this app? There's no button to get context either. The only workaround is to get the answer wrong on purpose, so you can see why
★☆☆☆☆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
★☆☆☆☆Harmonious Joe· Jan 29, 2026
App developer needs to better scrutinize what types of ads they allow on their service. I've seen at least 3 or 4 scam adds that present themselves as if they were notifications and each is making some sort of statement that would likely be mistaken for an OS/system message. Be advised, these are likely malicious and could compromise your devices' security.
★☆☆☆☆Roger Rodrz.· Feb 4, 2026
Trash... you gave me a test that when I went over there seven of the questions were there and the other ones were not, it doesn't give you the full test this is trash.
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