CDL Prep vs CristCDL.com Practice Test CDL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Over 500 practice questions
- Timed exam mode
- Endorsement topic exams
- Instant feedback in practice mode
- Randomized answer order
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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!
CristCDL.com Practice Test CDL
Prepare for your Commercial Driver's License (CDL) exams with state-specific practice tests. Access a comprehensive question bank, including specialized endorsements, and receive immediate feedback with explanations for each answer. Download your state manual for further study.
- State-specific practice tests
- General Knowledge tests
- Endorsement tests (Air Brakes, Tanker, etc.)
- Pre-Trip Inspection tests and videos
- Immediate answer feedback with explanations
- Downloadable state CDL manuals
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Put yourself in the drivers seat! Passing the CDL BMV exams made easy. With over 30 years experience in the CDL field we have more questions that appear on the CDL written exams than any other site. No sign up or sign in required, no payments to unlock tests, just great information at your fingertips. Our practice tests are state specific and include General Knowledge, Air Brakes, Combination, Tanker, Doubles and Triples, Hazardous Material, School Bus, Passenger, and have tests and videos for the Pre Trip Inspection. Each test provides immediate feedback on your answer, showing if you got it correct or incorrect with an explanation for the correct answer, and should be used along with you current state manual which we included in the app for download. Since 1999 we have offered these tests online, and are moving to provide them within an app!
Screenshots
Verdict
The clearest difference is review sentiment: CDL Prep at 81% against CristCDL.com Practice Test CDL's 16%. CDL Prep also leads on rating (4.7 vs 1.7) and ratings volume (6.7K vs 123). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.
CDL Prep holds the better App Store score, 4.7 against 1.7. That said, the two scores are not equally well evidenced: CDL Prep has 6.7K ratings behind it against 123, so its average is the more settled of the two. Written reviews point the same way: 81% of CDL Prep's written reviews are positive against 16% of CristCDL.com Practice Test CDL's.
CDL Prep ships an update every 2 months, CristCDL.com Practice Test CDL every 5 months. The most recent releases landed on September 24, 2026 and September 26, 2026 respectively.
| Parameter | CDL Prep | CristCDL.com Practice Test CDL |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (6.7K ratings) — better | 1.7 (123 ratings) |
| Positive reviews | 80.7% of reviews — better | 15.9% of reviews |
| Number of ratings | 6.7K — better | 123 |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Best chart rank | #102 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 6 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeffrey Diaz | William Crist |
Customer experience
CDL Prep
CristCDL.com Practice Test CDL
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
CristCDL.com Practice Test CDL
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CDL Prep
No in-app purchases
CristCDL.com Practice Test CDL
No in-app purchases
Questions
Is CDL Prep free?
Is CristCDL.com Practice Test CDL free?
Which has better reviews, CDL Prep or CristCDL.com Practice Test CDL?
Do CDL Prep or CristCDL.com Practice Test CDL have ads?
Which is updated more often, CDL Prep or CristCDL.com Practice Test CDL?
Other comparisons
