#12in CDL Test PrepCDL Prep
What is CDL Prep?
CDL Prep is an education app for preparing for the Commercial Drivers License General Knowledge exam and various endorsement exams. It contains over 500 practice questions across General Commercial, Air Brakes, Combinations, Hazmat, Passenger, Tanks, School Bus, and Doubles/Triples topics. The app offers an Exam Mode with timed tests and a Practice Mode that gives instant feedback on incorrect answers.
Pricing. CDL Prep is free to download on the App Store.
Good for
- Studying for the CDL General Knowledge exam
- Preparing for CDL endorsement exams such as Hazmat or Passenger
- Timed practice with randomly chosen questions
Screenshots
Why this app is in A tier
CDL Prep scores 83 out of 100: rating 94, rating count 78, App Store search rank 62, update recency 98. The four parts are averaged with no weights, and A tier follows from that score within this list. The full explanation, as data.
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!
Compare in CDL Test Prep
| Measure | CDL Prep |  DMV Practice Test 2026 |  CDL Prep Test 2026 |
|---|---|---|---|
| Tier | A | A | A |
| Score | 83 / 100 | 84 / 100 | 82 / 100 |
| Rating | 4.7 ★ | 4.7 ★ | 4.9 ★ |
| Ratings | 7.0K | 7.9K | 15.3K |
| Latest ratings · 180d | — | — | 4.6 ★ · 16 reviews |
| Last update | 71d ago | 35d ago | 82d ago |
| Price | Free download | Free download | Free |
Alternatives
See all 18 ›
CDL Exam Prep 2026Free + IAP · ★ 4.9S
DMV GenieFree + IAP · ★ 4.8S
CDL Prep Practice Test GenieFree download · ★ 4.8S
Where else it ranks
Questions about CDL Prep
Is the app free to use?
The listing says free to download. No in-app purchases are listed on the App Store.
What topics does the app cover?
General Commercial, Air Brakes, Combinations, Hazmat, Passenger, Tanks, School Bus, and Doubles/Triples. It contains over 500 questions.
How does Exam Mode work?
You get 60 minutes to answer 50 randomly chosen questions, or 40 minutes to answer 20 to 30 endorsement topic questions. Your score and any incorrect answers are shown at the end.
Is CDL Prep free?
CDL Prep is free to download.
What is CDL Prep good for?
CDL Prep is built for studying for the CDL general knowledge exam, preparing for CDL endorsement exams such as hazmat or passenger, timed practice with randomly chosen questions. It sits in the CDL test prep list on AppTierList.
Is CDL Prep worth it?
CDL Prep is A tier, ranked #12 of 19 CDL test prep apps with a score of 83 out of 100, from a 4.7 App Store rating across 6,972 ratings. It is in the list's top tiers; 11 apps rank above it.
How does CDL Prep compare to DMV Practice Test 2026?
CDL Prep is A tier at 83; DMV Practice Test 2026 is A tier at 84. DMV Practice Test 2026 ranks higher. CDL Prep is free to download, DMV Practice Test 2026 is free to download.
How often is CDL Prep updated?
CDL Prep was last updated on 2026-08-09, 71 days ago.
All the facts
- List
- CDL Test Prep
- Tier
- A (Excellent)
- Score
- 83 / 100
- Rank in list
- #12 of 19
- Ranking certainty
- settled
- Price
- Free download
- App Store rating
- 4.7 out of 5
- Number of ratings
- 6,972
- Current version
- (71 days ago)
- App Store data read
- App Store category
- Education
- Good for
- Studying for the CDL General Knowledge exam, Preparing for CDL endorsement exams such as Hazmat or Passenger, Timed practice with randomly chosen questions
- Requires
- iOS 15.0 or later
- Size
- 6 MB
- Age rating
- 4+
- Languages
- 1
- Maker
- unclaimed
- As data
- JSON · why it ranks here
Ranking refreshed · how it is computed