Screenshots
Description
CDL Prep is the best way to prepare for the Commercial Drivers License General Knowledge, and various endorsement exams. CDL Prep contains questions on the following topics: General Commercial, Air Brakes, Combinations, Hazmat, Passenger, Tanks, School Bus, and Doubles/Triples. Features: 1. Over 500 questions to practice with. 2. Exam Mode - 60 minutes to answer 50 randomly chosen questions, or 40 minutes to answer 20 to 30 questions on endorsement topics. At the end, review your score and any incorrect answers. 3. Practice Mode - Answer questions and receive instant feedback if you answered incorrectly. 4. Answer Randomization - Answers to questions will not always be in the same position. Please send any feedback or request to: CDLPrepApp@gmail.com. Thank you for reading, and good luck on your exams!
What's New
Minor bug fixes and grammatical corrections.
Details
- Developer
- Jeffrey Diaz
- Main Category
- Education
- Version
- 9.12
- Version Release
- 2026-06-20
- Initial Release
- 2016-04-14
- Size
- 6 MB
- Age Rating
- 4+
- Price
- Free
- Languages
- EN
- Bundle ID
- com.jeffreydiaz.CDL-Prep
- Version Rating
- ★ 4.68 (6,602)
- First Seen
- 2026-05-28
Metadata updated 2026-07-19
Rank History
Free · Max 90 days · Top 5 categories shown (Y-axis: rank, lower is better)
Free Rankings
Paid Rankings
No rankings
Competitive Benchmark — Education Top 10
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| 95 | CDL Prep | Free | ★ 4.68 | 6,602 | 1 | 2026-06-20 |
User Reviews
Went to go take exam at penndot and failed due to seeing questions never saw on exam.
great for all endorsements
This app help me pass the CDL permit test along with the following endorsements I have all except for double/triple and Metal . The rest I have yes I read the dmv manual but this app in used/studied every day.
This was the best app for cdl. The exact question that will be on actual exam
July 2026, super accurate questions, most are the actual question
Great CDL App
This app makes taking the test much easier. As you take your practice test you gain crazy confidence. Best app ever
Half of hazmat questions were not on exam Failed test at dmv
Can’t even just close the add out. You have to close the entire app and re-open
Great App very helpful
I used this for 1 week and passed general knowledge, combination vehicles, and air brakes. It literally has the same test questions as the real test. I highly recommend…
There there are a few questions that you guys have in the exam that are WRONG answers I had to cross check them myself because I knew they were correct from my studies from CDL school and the app said I got them wrong when in fact they were right . Now I AM NOT saying that this app is bad or terrible in any way but these are things that must be fixed within the app . I hope the team can get these questions fixed because THIS IS SUCH A GREAT TOOL but there were multiple questions that I cross checked and the app said they were wrong when indeed they were correct , Many people use apps like this in hopes of getting the proper information they need to pass the CDL exam and start a new career in the trucking field for the most part this is a great tool for anyone trying to get some knowledge on the CDL Exam but is it 100% absolutely correct NO so my advice to anyone using the app is to fact check the questions and write notes to create your own study guide and take multiple different test that are available so you can be assured that you will pass the exam
Reviews are collected only for apps with detected changes (new entries or sharp risers).