Comparison

SD CDL Prep Test 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

SD CDL Prep Test

Prepare for your South Dakota Commercial Driver's License exam with this comprehensive study tool. It offers interactive practice tests covering all key topics, progress tracking, and detailed explanations to help you identify areas for improvement and pass your CDL exam.

Highlights
  • Comprehensive study material
  • Interactive practice tests
  • Progress tracking and analysis
  • Bookmarking of questions
  • Detailed question explanations
  • Resume and restart tests
  • Weak/wrong question review
Features
Read full description

SD CDL Prep Test: The South Dakota CDL Prep Test is a comprehensive study tool designed to help individuals prepare for the South Dakota Commercial Driver License (CDL) exam. This app provides users with an interactive and engaging way to study for the CDL exam. The app covers all of the key topics, including:   * Vehicle inspection * Vehicle control * Air Brakes * Hazardous Materials * Transportation of passengers   The app includes a variety of practice questions for the CDL exam. These questions are based on the South Dakota Commercial Driver License Manual Users can track their progress and identify areas where they need more practice, allowing them to focus their studying on the areas where they need the most improvement.   App tracks the users completed practice tests. The app tracks their progress, allowing them to identify areas for improvement and track their overall progress. You should be able to "bookmark" questions so that you can study them later. In addition, the app provides a list of weak questions based on practice tests on CDL Prep Test. In the South Dakota CDL Permit Practice Test, there are multiple-choice questions. You must correctly answer questions based on the passing marks or mistakes allowed for that particular test. Features: - Study and Practice tests - Driving rules - Knowledge test - Air Brakes - Combination - Bus Endorsement - Hazmat Endorsement - Double Endorsement - Tank Endorsement - Passenger Endorsement - Bookmark questions - Preview answers after the test is submitted. - Resume and Restart the test - Questions with explanation - Keep Track of Your Progress - List of Weak/Wrong Questions for Improvement - Review Previous tests - Appearance ( Auto / Light / Dark ) - Test - Result on-the-spot with score - Review test questions with answers and filter about right and wrong answers   The South Dakota SD CDL Prep Test app is user-friendly and accessible, allowing individuals to study and prepare for the South Dakota DMV CDL exam. The app aims to provide individuals with a comprehensive and convenient study resource to help them pass the CDL exam and obtain their commercial driver's license in South Dakota . Whether you are a first-time CDL candidate or a seasoned professional, this app is an essential tool for passing the South Dakota DPS CDL exam and achieving your commercial driver's license. Content Source Our app includes a variety of practice questions for the Driver's license exam for Commercial Vehicles. These questions are based on the official handbook of different states. Disclaimer: This app is simply a fantastic tool for self-study and exam preparation. It has no affiliation with or endorsement from any government organisation, certificate, test, name, or trademark.

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

SD CDL Prep Test4 screens
CDL Prep4 screens

Verdict

The call

The clearest difference is ads: CDL Prep at none against SD CDL Prep Test's shown. SD CDL Prep Test's advantage is iOS requirement (13.4 vs 15.1). On price, rating, ratings volume and update cadence 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. SD CDL Prep Test sells 1 one-off in-app purchase 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SD CDL Prep Test against 5.0 for CDL Prep. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

SD CDL Prep Test ships an update every 4 months, CDL Prep every 3 months. The most recent releases landed on September 15, 2026 and September 29, 2026 respectively.

Scorecard2 real differences · 7 level
SD CDL Prep Test versus CDL Prep: the parameters behind the verdict, then further details
ParameterSD CDL Prep TestCDL Prep
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 4 monthsEvery 3 months — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.4 — better15.1
Further details — not scored
Size25 MB51 MB
Age rating4+4+
DeveloperAltaf MogalMD Teknoloji Bilisim ve Ticaret Anonim Sirketi

Customer experience

SD CDL Prep Test

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

CDL Prep

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

In-app purchases

1 purchases

SD CDL Prep Test

One-time1
  • Remove Ads$4.99
1 purchases

CDL Prep

Subscriptions1
  • CDL Pro$9.991 Month

Questions

Is SD CDL Prep Test free?
SD CDL Prep Test is free to download, with in-app purchases available.
Is CDL Prep free?
CDL Prep is free to download, with in-app purchases available.
Which has better reviews, SD CDL Prep Test or CDL Prep?
SD CDL Prep Test and CDL Prep are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do SD CDL Prep Test or CDL Prep have ads?
SD CDL Prep Test shows ads; CDL Prep does not.
Which is updated more often, SD CDL Prep Test or CDL Prep?
SD CDL Prep Test ships an update every 4 months, and CDL Prep every 3 months. Most recently, SD CDL Prep Test was updated on September 15, 2026 and CDL Prep on September 29, 2026.

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