CDL Help vs CDL Prep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CDL Help
Prepare for your Commercial Driver's License exam with over 1000 practice questions. Study core and endorsement tests, including HazMat and Air Brakes, with detailed explanations. The app also supports learning CDL regulations and English simultaneously, with support for 10 languages.
- 1000+ practice questions
- Core and endorsement tests
- Detailed explanations
- Multi-language support
- Flashcards and reading mode
- Frequently missed questions tracker
- State-specific information
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CDL Practice Test — CDL Help Prepare with confidence for your CDL permit test. CDL Help is a CDL practice test app for the Class A and Class B commercial driver's license. Study 2,500+ practice questions with detailed explanations — offline, in 10 languages. PRACTICE TESTS Core CDL tests: • General Knowledge — vehicle rules, safe driving, cargo, vehicle inspection. Required for all CDL applicants. • Combination Vehicles — coupling and uncoupling, rollover prevention, inspection. Required for Class A. • Air Brakes — system parts, dual air brakes, checks and correct use. Endorsement tests: • HazMat (H) — hazardous materials, placards, emergency response. • Tanker (N) — loading and unloading, liquid surge, tanker driving. • Doubles & Triples (T) — coupling more than one trailer, safe driving, inspection. Also in the app: pre-trip inspection questions, and US road signs with a quiz. STUDY TOOLS • Complete version (the exam essentials) or Expanded version (extra questions from the CDL handbook) • Flashcards for quick review • Reading mode: the question, the correct answer and the explanation together • Text-to-speech: hear questions read aloud in English • Bookmark questions to review later • Practice the questions you missed most • Shuffle questions • Timed mock exam • Set your exam date and get a daily study plan with a countdown • Progress by topic: questions answered and accuracy • Your state's CDL handbook in the app — many explanations link to the page they come from • Detailed explanations based on federal FMCSA regulations LEARN CDL AND ENGLISH TOGETHER Federal rules require commercial drivers to read and speak English (49 CFR 391.11). Study in your language and switch any question to English with one tap. You learn the CDL rules and the English words for them at the same time. When you can read road signs, talk with inspectors and fill in reports in English, you protect yourself, your CDL and everyone on the road. Languages in the app: English, Spanish, Russian, Chinese, Arabic, Portuguese, Korean, Turkish, Ukrainian, Uzbek. Some tests and features require an in-app purchase. Download CDL Help and start studying today. Terms of Use: https://www.cdlhelp.com/terms-conditions Privacy Policy: https://www.cdlhelp.com/privacy-policy
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.
- 907 practice questions
- Clear explanations for each question
- Timed practice exams
- Mistake review feature
- State-specific handbooks
- Progress tracking by topic
- Offline functionality
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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
Verdict
The clearest difference is ads: CDL Prep at none against CDL Help's shown. CDL Help's advantage is update cadence (every 2 days vs every 2 months) and ratings volume (5.4K vs 7). On price, rating, in-app purchases and monetization model 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
Both are free to download. CDL Help sells 23 in-app purchases, starting at $9.99 per 7 days and CDL Prep sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for CDL Help against 4.9 for CDL Prep. That said, the two scores are not equally well evidenced: CDL Help has 5.4K ratings behind it against 7, so its average is the more settled of the two.
CDL Help ships an update every 2 days, CDL Prep every 2 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | CDL Help | CDL Prep |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (5.4K ratings) — better | 4.9 (7 ratings) |
| Positive reviews | 55.4% of reviews | — |
| Number of ratings | 5.4K — better | 7 |
| Update frequency | Every 2 days — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 133 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | TruckDriver.help | MD Teknoloji Bilisim ve Ticaret Anonim Sirketi |
Customer experience
CDL Help
CDL Prep
Bugs and requests
CDL Help
Reported bugs
3 issues- Incorrect or missing questions and answers
- Inconsistencies between full and express versions
- Restore subscription functionality not working
Requested features
3 requests- Add audio pronunciation for better learning
- Randomize questions when reviewing
- Provide feedback on test performance
CDL Prep
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CDL Help
- 1 week subscription$9.997 Days
- Monthly subscription$17.991 Month
- Monthly subscription$19.991 Month
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- Monthly subscription$24.991 Month
- 1 month subscription$24.991 Month
- 1 month subscription$29.991 Month
- 1 month subscription3 Days trial$29.991 Month
- 3 months subscription.$39.993 Months
- 3 months subscription.$44.993 Months
- 3 months subscription.$49.993 Months
- 3 months subscription$54.993 Months
- 3 months subscription$64.993 Months
- 3 months subscription3 Days trial$64.993 Months
- 6 months subscription.$69.996 Months
- 6 months subscription.$79.996 Months
- 6 months subscription$84.996 Months
- Annual (1 year) subscription.$99.991 Year
- 6 months subscription3 Days trial$99.996 Months
- 6 months subscription$99.996 Months
- 1 year subscription$129.991 Year
- Annual subscription.$139.991 Year
- Annual subscription$149.991 Year
- Annual subscription3 Days trial$149.991 Year
CDL Prep
- CDL Pro$9.991 Month
Questions
Is CDL Help free?
Is CDL Prep free?
Which has better reviews, CDL Help or CDL Prep?
Do CDL Help or CDL Prep have ads?
Which is updated more often, CDL Help or CDL Prep?
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