# CDL Prep: Exams & Study Guide — Practice Test & Exam Questions

> CDL exam preparation app with practice tests and study guides. (iPhone/iPad app by LineCentury.)

- Source: https://appshunter.io/ios/app/cdl-prep-exams-and-study-guide/id1455037780 (this page in markdown: same URL + `.md`)
- Developer: [LineCentury](https://appshunter.io/developer/1057772456)
- Category: Reference
- Price: Free with in-app purchases
- Rating: 4.80/5 from 2,588 App Store ratings · 10 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 56 MB
- Languages: American English
- Released: 2019-03-16
- Data updated: 2026-08-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/cdl-prep-exams-and-study-guide/id1455037780/reviews.md

## What is CDL Prep?

CDL Prep: Study Guide, Practice Tests, Exam Simulation - ALL IN ONE app!

+) CDL Prep includes:

- Free CDL Preparation and real test questions
- Practice test general knowledge
- All CDL test answers with practice test combination

+) CDL Prep cover the following topics:
- "General Knowledge"
- "Hazmat & Passenger Vehicles"
- "Air Brake"
- and many other topics.

+) CDL - COMMERCIAL DRIVER'S LICENSE:

All drivers of Commercial Motor Vehicles (CMV’s) are required to obtain a Commercial Driver License (CDL).  In order to get a CDL, you must first take and pass required knowledge and skills test. The CDL Test consists of a general test, one or more endorsement tests, and an air brakes test.  The tests that you will take depend on the license classification that you are obtaining (Class A, B, or C) and the type of vehicle that you will be driving (e.g., Tanker, Double/Triple, Passenger Bus). 

The CDL Test consists of a general test, one or more endorsement tests, and an air brakes test.  The tests that you will take depend on the license classification that you are obtaining (Class A, B, or C) and the type of vehicle that you will be driving (e.g., Tanker, Double/Triple, Passenger Bus).


CDL Prep 2026 Subscription:

Pass on First Try: 1 week, $6.99, renews weekly

Subscribing gives you full access to the selected course for the entire duration of your subscription.
Payment will be charged to your iTunes account upon purchase confirmation.
Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period (including during a free trial). Any unused portion of a free trial is forfeited upon subscription.

Privacy Policy: https://www.dmvpass.net/privacy
Terms of Use: https://www.dmvpass.net/terms
Contact: contact@dmvpass.net

## Key features

- Free CDL preparation
- Real test questions
- Practice general knowledge tests
- All CDL test answers
- Covers hazmat and air brakes

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Subscription 1 Week | $6.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock Everything | $15.99 | one-time |


## Recent user reviews (10 of 10)

All indexed reviews: https://appshunter.io/ios/app/cdl-prep-exams-and-study-guide/id1455037780/reviews.md

### 5/5 — Very helpful

*2024-01-04*

Good

### 1/5 — Not worth it

*2023-11-28*

Not worth your money. Would recommend using the free online tests they are way better.

### 5/5 — Gets straight to the point

*2023-09-20*

No fees good practice thank you

### 2/5 — Eh

*2023-06-29*

The questions are good but I shouldn’t have to pay $16 just to *actually* try out the app.

### 5/5 — Mr

*2023-04-29*

Very easy

### 5/5 — I think this app is trustworthy!

*2021-02-08*

I need help with getting apps because they have a lock on it. I pray they will do the right thing because I have consumer rights and it is part of the purchase that has already been made in full for the product. The product agreement states that the App Store should be able to be accessed at any time. They are in breach of their service. We forgive them and we drop charges. Be without disputes! I will wait in patience. 

Now onto the review.
I think this app is good because it provides study tools for free. The other apps that I used required membership even though they claimed to be free on the App Store which is a breach in contract because they claimed the price was free and they then attempted to charge money for their product. Be without disputes. I choose not to sue. We forgive them. They will make amends.

### 1/5 — Not good

*2021-02-04*

Was fine for first 10 minutes then kept crashing and not showing the answers I do not recommend

### 5/5 — Pre-trip inspection

*2020-06-20*

It’s a very helpful

### 1/5 — Not working

*2020-02-13*

Can’t read anything but the questions and answers can’t read  anything else showing up blank and black

**Developer response:** Hi Daddy1129,
We did fix the issue. Please update the app to the latest version on App Store to enjoy a lot of improvements and up-to-date content.
Thank you for your feedback

### 1/5 — Completely broken and a complete waste of money!

*2019-11-24*

Was studying with original app when it broke. Had to delete and reinstall the new version, losing all my previously opened content. So I purchased the app and now none of the question show! It just shows the possible answers! Are we just supposed to guess what the question is?
Fix this or give me my money back!

**Developer response:** Hi Justanothered, 
We did fix the issue. Please update the app to the latest version on App Store to enjoy a lot of improvements and up-to-date content. 
Thank you for your feedback

## Frequently asked questions about CDL Prep

### What does the CDL Prep app do?

This app provides comprehensive study materials and practice tests to help users prepare for their Commercial Driver's License (CDL) exams. It includes real test questions and detailed answers covering various topics essential for obtaining a CDL.

### What topics are covered in the CDL Prep app?

The app covers essential CDL topics including 'General Knowledge', 'Hazmat & Passenger Vehicles', and 'Air Brake'. It also includes practice tests for endorsements and combinations relevant to different license classifications (Class A, B, or C) and vehicle types.

### Is the CDL Prep app free to use?

The app offers free CDL preparation and practice tests. However, it also features in-app purchases and advertisements, indicating a freemium model with optional paid content or an ad-supported experience.

### What are the common use cases for the CDL Prep app?

The primary use case is to help aspiring commercial drivers study for and pass their CDL knowledge and skills tests. It's ideal for individuals needing to obtain or renew their CDL, including those seeking specific endorsements like Hazmat or Air Brakes.

### What kind of tests can I expect with this app?

You can expect practice tests that simulate the real CDL exam experience. These include general knowledge tests, as well as specific tests for endorsements like Hazmat and Passenger Vehicles, and the Air Brake test. Answers are provided for all practice questions.

## Version history (last 5 releases)

### 11.0.0 — 2026-07-05

AI CDL Tutor: Get instant, clear explanations for tough questions from your new personal AI study companion.
• Better Content: Enhanced question quality and accuracy to keep your prep sharp and up-to-date.
• Faster Loading: Under-the-hood optimizations for instant question loading and a seamless experience.

### 10.0.8 — 2022-08-30

- Improve performance
- Update new questions

### 10.0.7 — 2022-08-09

- Improve performance and fix bugs
- Improve images

### 10.0.6 — 2022-07-29

- Improve performance
- Fix bugs and fix crashes

### 10.0.1 — 2020-08-27

- Updated new content for 2020-2021 exam
- Bug fixes and Performance improvements

## Apps similar to CDL Prep

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [CDL Practice Test® 2026](https://appshunter.io/ios/app/cdl-practice-test-2026/id1441336161) | 4.8 (6,053) | Free | Reference |
| [CDL  Test 2026](https://appshunter.io/ios/app/cdl-test-2026/id1607016793) | 4.8 (869) | Free | Reference |

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*