Comparison

CDL Prep vs CDL Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CDL Prep

Prepare for your Commercial Drivers License exams with a comprehensive question bank covering general knowledge and various endorsements. Practice with timed exams or instant feedback modes to identify areas for improvement.

Highlights
  • Over 500 practice questions
  • Timed exam mode
  • Endorsement topic exams
  • Instant feedback in practice mode
  • Randomized answer order
Features
Currently charting
Read full 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!

About

CDL Prep

Prepare for your Commercial Driver's License (CDL) permit tests with over 900 practice questions and detailed explanations. The app offers timed exams, mistake review, and state-specific handbooks, with translation support for multiple languages.

Highlights
  • 907 practice questions
  • Clear explanations for each question
  • Timed practice exams
  • Mistake review feature
  • State-specific handbooks
  • Progress tracking by topic
  • Offline functionality
Features
Read full description

Study for your CDL permit knowledge tests with 907 practice questions, a clear explanation for every question, and timed practice exams that give you a new mix of questions every time. WHICH CDL DO YOU NEED? Choose what you'll drive — a truck with a trailer, a one-piece truck or bus, or a van — and CDL Prep lines up the written tests for Class A, B or C, plus the endorsements you add. All 32 tests stay one tap away. WHAT YOU GET • 907 practice questions in 32 tests, each with a clear explanation • Timed practice exam: 25 questions, 25 minutes, 80% to pass • Mistake review: missed questions come back until they stick • State-specific handbook: choose any of the 50 states or DC and open its CDL manual • Progress by topic: see what you've mastered and what to study next • License codes explained: the L restriction and the H, N, T, P and S endorsements • Daily reminder at the time you choose • Works offline: every question is stored on your phone, no account needed EVERY CDL TOPIC • General Knowledge • Air Brakes • Combination Vehicles • HazMat (Hazardous Materials) • Tanker Vehicles • Doubles & Triples • Passenger Vehicles • School Bus • Pre-Trip Inspection STUDY IN ENGLISH, UNDERSTAND IN YOUR LANGUAGE Questions stay in English. When a word or sentence stops you, tap Translate to read the question, its answers and the explanation in Spanish, Portuguese, Russian, Ukrainian, Polish, Turkish, Vietnamese, Chinese, Arabic, French, German or Italian. Questions you answer with translation on come back for review, so you can be sure you know them in English. Translation needs an internet connection. The app's interface is also available in Spanish. CDL PRO Without a subscription you get 9 practice tests (269 questions), unlimited timed exams drawn from all 907 questions, mistake review, every state handbook and a limited number of translations. CDL Pro, an optional auto-renewing subscription, unlocks all 32 practice tests and raises the translation limit. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period, and renewal is charged within 24 hours before the period ends. Manage or cancel anytime in your App Store account settings. DISCLAIMER CDL Prep is an independent study app. It is not affiliated with, endorsed by, or representing the FMCSA, any state DMV, or any other government agency. Practice questions and handbooks are based on publicly available government materials. Always confirm current requirements with your state licensing agency. Official sources: • FMCSA — Commercial Driver's License: https://www.fmcsa.dot.gov/registration/commercial-drivers-license • State CDL manuals and licensing agencies: https://www.fmcsa.dot.gov/registration/commercial-drivers-license/state-resources-and-programs Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CDL Prep4 screens
CDL Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: CDL Prep at none against CDL Prep's 1. CDL Prep also leads on ratings volume (7K vs 7) and chart position (#76 vs unranked). CDL Prep's advantage is ads (none vs shown). On price, rating, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CDL Prep sells 1 in-app purchase, starting at $9.99 per month. CDL Prep asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CDL Prep holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: CDL Prep has 7K ratings behind it against 7, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 6 level
CDL Prep versus CDL Prep: the parameters behind the verdict, then further details
ParameterCDL PrepCDL Prep
PriceFreeFree
Rating4.7 (7K ratings)4.9 (7 ratings) — better
Positive reviews80.5% of reviews—
Number of ratings7K — better7
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
Best chart rank#76 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size6 MB51 MB
Age rating4+4+
DeveloperJeffrey DiazMD Teknoloji Bilisim ve Ticaret Anonim Sirketi

Customer experience

CDL Prep

All ratings6,708 ratings
Positive91.8%
Neutral2.2%
Negative6.1%
Written reviews591 reviews
Positive80.5%
Neutral5.8%
Negative13.7%

CDL Prep

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

CDL Prep

Reported bugs

2 issues
  • Back button issues
  • Incorrect answers in app

Requested features

3 requests
  • Ad-free version
  • Ability to report incorrect questions
  • Include state-specific requirements

CDL Prep

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

CDL Prep

No in-app purchases

1 purchases

CDL Prep

Subscriptions1
  • CDL Pro$9.991 Month

Questions

Is CDL Prep free?
CDL Prep is free to download, with no in-app purchases.
Is CDL Prep free?
CDL Prep is free to download, with in-app purchases available.
Which has better reviews, CDL Prep or CDL Prep?
CDL Prep is rated higher. CDL Prep averages 4.7 out of 5 from 7K ratings, while CDL Prep averages 4.9 from 7 ratings.
Do CDL Prep or CDL Prep have ads?
CDL Prep shows ads; CDL Prep does not.
Which is updated more often, CDL Prep or CDL Prep?
CDL Prep ships an update every 2 months, and CDL Prep every 2 months. Most recently, CDL Prep was updated on November 2, 2026 and CDL Prep on October 28, 2026.

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