Reviews of CDL Prep

By: Jeffrey Diaz App

List of user reviews and ratings for CDL Prep

Total ratings

4.70 (Rating count: 6,602)

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Review summary

CDL Prep is widely praised for helping users pass CDL written tests and for questions that align with real exams, plus strong endorsement coverage and free access. The main downsides are intrusive ads and occasional content issues (inaccuracies and outdated state content) with gaps in some endorsements. Overall, it's an effective, value-focused study tool for many, but users notice room for content updates and ad relief.

Pros

Helps users pass CDL tests, with many reporting first-time pass results.
Practice questions closely mirror real exams, including General Knowledge, Air Brakes, and other areas.
Covers multiple endorsements (hazmat, tanker, doubles/triples, passenger) aiding in earning endorsements.
Free, ad-supported access provides good value and reduces need for paid alternatives.

Cons

Ads are intrusive and can disrupt practice sessions; multiple reviews mention the need to remove or block ads.
Occasional content inaccuracies and outdated material, including hazmat question errors and state-specific updates (Florida GK, New York endorsements).
Gaps in state-specific coverage and endorsement content that some users want updated or expanded.

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User Reviews

Recent rating average: 4.60

All time rating average: 4.70

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8% (9)

Date	Author	Comment
2026-06-29	Pe*****	Great App very helpful
Great App very helpful
2026-06-28	Er*****	The question regarding empty trucks vs bobtail and longer stopping distance is wrong. A bobtail will have a longer stopping distance than an empty trailer.
The question regarding empty trucks vs bobtail and longer stopping distance is wrong. A bobtail will have a longer stopping distance than an empty trailer.
2026-06-25	Tm*****	Def helped me pass my test yesterday… keep testing yourself over and over .. it helps the muscle memeory in your brain to get the questions
Def helped me pass my test yesterday… keep testing yourself over and over .. it helps the muscle memeory in your brain to get the questions
2026-06-25	No*****	Excellent app
Excellent app
2026-06-25	Kf*****	Wonderful
Wonderful
2026-06-25	le*****	If you’re studying to get your CDL permit this app will 100% get you there this is the only thing you need. I promise 💯 this should actually be a paid app in all honesty
If you’re studying to get your CDL permit this app will 100% get you there this is the only thing you need. I promise 💯 this should actually be a paid app in all honesty
2026-06-24	ad*****	This helps so much I did all test and aced all of them this app helped me get my license and get my hazmat and doubles n triples endorsements
This helps so much I did all test and aced all of them this app helped me get my license and get my hazmat and doubles n triples endorsements
2026-06-24	Ja*****	This is the app you need to past your written tests
This is the app you need to past your written tests
2026-06-24	me*****	Out of of the free CDL test prep apps this one will have the same exact questions you will see on the actual CDL permit test
Out of of the free CDL test prep apps this one will have the same exact questions you will see on the actual CDL permit test
2026-06-23	Ir*****	I passed my general knowledge, combinations, air breaks, tanks & doubles/triples in 3 days thanks to this app. I downloaded the app on a Tuesday and passed all the exams on Friday. I would recommend this app 100% to anyone is California that will be taking the CDL exams. Questions are exactly the same.
I passed my general knowledge, combinations, air breaks, tanks & doubles/triples in 3 days thanks to this app. I downloaded the app on a Tuesday and passed all the exams on Friday. I would recommend this app 100% to anyone is California that will be taking the CDL exams. Questions are exactly the same.