After many request CDL Study Buddy is now available on the App Store!! CDL Study Buddy is made and owned by someone who has been driving trucks for over 20 years. I've taken everything that has ever helped me, my friends and even those I've chosen to teach how to drive, and then placed it into a simple to use lightweight app. And can be translated to over 40 languages.

In addition to over 1,000 test questions, CDL Study Buddy also provides every CDL handbook throughout the United States in pdf, as well the the CDL handbook in audio so you can listen to it on the go!! And instructional videos that help guide you through every step of the pretrip inspection, air brake inspection, and even a DOT roadside inspection.

One of the most common questions I receive is "Does your test cover the material for my state?". And the answer is yes it does, this is because every state in the United States uses the cdl handbook that is produced by American Association of Motor Vehicle Administrators (AAMVA), and thus the reason you'll see something to the effects of "copyright, AAMVA" in your CDL handbook. So study with confidence and use my free app that has already helped over 60,000 people study for and pass their written test.

Ratings and Reviews

3.6 out of 5

16 Ratings

16 Ratings

Want let me do any practice test


I had been studying every since June 2017 and every time I went to take the test I failed it went back last week and I passed passenger and school bus now I have to get general knowledge and air brakes done. But for some reason I can't get the app to let me get to the practice test

Cdl A


Studied the app and the hand book for over a month and the first time I took the general knowledge I missed it by one and failed so continued to study the app and I passed my general knowledge air brakes combo doubles and triples tankers and hazmat all in the same day. This app is the best and the general knowledge test was the hardest of them all.

Let's just say I pasted everything today !!!!!

Krebs Robert

Using this application helped major time, I'm in California Oakland. I have been studying for like two months. I used this app and all its features. As well read the commercial handbook 2017 and past all my endorsements.


Jack Mahana
2.2 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© JackzAppz


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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