# CDL Exam Prep 2027 — Air Brakes, HazMat & Class A > Air Brakes, HazMat & Class A (iPhone/iPad app by Md Tariqul Islam.) - Source: https://appshunter.io/ios/app/cdl-exam-prep-2027/id6742199828 (this page in markdown: same URL + `.md`) - Developer: [Md Tariqul Islam](https://appshunter.io/developer/1789667629) - Category: Education, Reference - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 51 MB - Languages: American English - Released: 2025-03-11 - Data updated: 2026-11-14 ## What is CDL Exam Prep 2027? Preparing for your Commercial Driver's License (CDL) permit or written knowledge test? Study smarter with CDL practice questions, detailed answer explanations, flashcards, and road sign review—all from your iPhone or iPad. Whether you're studying CDL General Knowledge, Air Brakes, Combination Vehicles, or endorsements, CDL Exam Prep helps you organize your preparation and focus on the subjects you need to review. CDL PRACTICE TEST PREPARATION Build your understanding of commercial driving rules, vehicle safety, and important CDL knowledge topics with focused practice questions and explanations. TOPICS COVERED • General Knowledge — Safe driving, vehicle operation, inspections, and traffic rules. • Air Brakes — Braking components, system operation, pressure checks, and safety. • Combination Vehicles — Coupling systems, trailers, and combination vehicle operation. • Hazardous Materials (HazMat) — Important hazardous materials transportation concepts. • Tank Vehicles — Tanker safety, liquid surge, and handling considerations. • Passenger Vehicles — Passenger transportation and safety procedures. • School Bus — School bus operation and passenger safety. • Doubles and Triples — Multiple-trailer driving and handling. • Road Signs — Common traffic signs, signals, and their meanings. STUDY FEATURES TOPIC-BASED PRACTICE QUESTIONS Practice specific CDL subjects to strengthen your knowledge. Focus on General Knowledge, Air Brakes, HazMat, and other important topics. DETAILED ANSWER EXPLANATIONS Review explanations to understand the correct answers and reinforce important commercial driving concepts. CDL FLASHCARDS Study key facts, terminology, and safety concepts through flashcards designed for convenient review. ROAD SIGNS PRACTICE Review common traffic signs and signals relevant to safe driving. PROGRESS TRACKING Monitor your study progress and review your performance as you prepare for your CDL knowledge tests. OFFLINE STUDY Access study content without a continuous internet connection, making it convenient to review whenever you have time. PREPARE FOR YOUR CDL GOALS Use focused practice to support preparation for Commercial Learner's Permit (CLP) knowledge testing, Class A or Class B CDL knowledge topics, and applicable endorsements. Practice on your iPhone during short study sessions or use your iPad for longer reviews. Start preparing for your CDL written knowledge test today. IMPORTANT DISCLAIMER This is an independent educational study application. It is not affiliated with, endorsed by, or an official product of the Federal Motor Carrier Safety Administration (FMCSA), any state DMV, or another government licensing agency. CDL requirements and testing content may vary by state. Always consult your state's current official CDL manual and licensing agency for authoritative information. For more information, please review our: Privacy Policy: https://docs.google.com/document/d/1IqvkaIiLtMosBc9OB_Olgf0Ca6pDidoegwVoHu3ZGQ8/edit?usp=sharing Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | CDL Premium - Weekly | $3.99 | per 7 days | | CDL Premium - Monthly | $12.99 | per month | | CDL Premium - Yearly | $29.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Unlimited Plan | $39.99 | one-time | | Lifetime | $39.99 | one-time | ## Is CDL Exam Prep 2027 safe? Not enough ratings yet to assess CDL Exam Prep 2027. ## Is CDL Exam Prep 2027 legit? CDL Exam Prep 2027 appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for CDL Exam Prep 2027 is 73 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 1.0.6 — 2026-11-12 We've refined the CDL study experience to make practice and review easier. • Improved readability of practice questions and answer explanations. • Refined flashcard layouts for iPhone and iPad. • Improved navigation between CDL study topics. • Performance enhancements and minor bug fixes for smoother study sessions. ### 1.0.5 — 2026-07-25 What’s New Improved flashcard readability and responsive layouts across iPhone, iPad, and Mac. Enhanced purchase and restore reliability with clearer progress and retry options. Refreshed onboarding to better highlight CDL study features. General stability improvements and bug fixes. ### 1.0.4 — 2026-06-29 Fresh Content Updates: We’ve expanded and refreshed our CDL practice questions to keep them 100% current. Improved Accuracy: Existing questions and explanations have been reviewed and updated for clarity and compliance. Performance Enhancements: Bug fixes and optimizations for a smoother, faster, and more reliable experience. New Free Version: Start practicing instantly — no limits, no barriers! ### 1.0.3 — 2025-11-10 Fresh Content Updates: We’ve expanded and refreshed our CDL practice questions to keep them 100% current. Improved Accuracy: Existing questions and explanations have been reviewed and updated for clarity and compliance. Performance Enhancements: Bug fixes and optimizations for a smoother, faster, and more reliable experience. New Free Version: Start practicing instantly — no limits, no barriers! ### 1.0.2 — 2025-11-04 Fresh content updates to keep your CDL practice tests current Bug fixes for a smoother and more reliable experience Added a new Free Version — start practicing without limits! ## Apps similar to CDL Exam Prep 2027 | App | Rating | Price | Category | | --- | --- | --- | --- | | [CDL Practice Test® 2026](https://appshunter.io/ios/app/cdl-practice-test-2026/id1441336161) | 4.8 (6,140) | Free | Education | | [CDL Prep Test 2026 Exam](https://appshunter.io/ios/app/cdl-prep-test-2026-exam/id1661957147) | 4.8 (989) | Free | Education | | [CDL Answers Prep Test 2027](https://appshunter.io/ios/app/cdl-answers-prep-test-2027/id6444111149) | 4.8 (729) | Free | Education | | [CDL Permit Prep Test 2026°](https://appshunter.io/ios/app/cdl-permit-prep-test-2026/id6499304043) | 4.7 (232) | Free | Education | | [CDL Prep Test 2026 - Practice](https://appshunter.io/ios/app/cdl-prep-test-2026-practice/id6502299810) | 4.8 (800) | Free | Education | | [CDL Exam Prep 2026: Practice](https://appshunter.io/ios/app/cdl-exam-prep-2026-practice/id1469003902) | 4.9 (27,620) | Free | Education | ## More apps by Md Tariqul Islam - [Journeyman Electrician 2026](https://appshunter.io/ios/app/journeyman-electrician-2026/id6740370298) - [AG-ACNP Mastery 2026](https://appshunter.io/ios/app/ag-acnp-mastery-2026/id6740486878) - [World Home Inspector Exam Prep](https://appshunter.io/ios/app/world-home-inspector-exam-prep/id6741062700) - [Al Quran - Divine Light](https://appshunter.io/ios/app/al-quran-divine-light/id6741097349) - [Phlebotomy ASCP PBT Prep](https://appshunter.io/ios/app/phlebotomy-ascp-pbt-prep/id6741225110) - [NEC Electrical Exam Prep 2027](https://appshunter.io/ios/app/nec-electrical-exam-prep-2027/id6741515078) All apps by Md Tariqul Islam: https://appshunter.io/developer/1789667629 ## Related topics [cdl exam prep 2026](https://appshunter.io/ios/topics/cdl-exam-prep-2026) · [cdl permit prep questions](https://appshunter.io/ios/topics/cdl-permit-prep-questions) · [cdl practice test 2026](https://appshunter.io/ios/topics/cdl-practice-test-2026) --- *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 2026-11-14.*