Comparison

CDL Permit Prep vs CDL Practice Test Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CDL Permit Prep

Prepare for your Commercial Driver's License (CDL) exam with a comprehensive question bank covering general knowledge, specific endorsements, and pre-trip inspections. Review explanations and source references for each answer to deepen your understanding.

Highlights
  • 1,316 practice questions
  • National and state-specific topics
  • Explanations and source references
  • Pre-trip inspection trainer
  • Study by CDL class and endorsement
  • Review missed questions
Features
Read full description

Study commercial learner's permit and CDL knowledge topics with CDL Permit Prep. The app's question bank contains 1,319 multiple-choice practice questions: 959 with national scope and 360 focused on state-specific topics. These are counts in the app, not the length or question count of any state's exam. Topics include General Knowledge, Air Brakes, Combination Vehicles, Hazmat, Tanker, Doubles/Triples, Passenger, School Bus, Hours of Service, and Pre-Trip Inspection. REVIEW QUESTIONS AND SOURCES Read an explanation after each answer and open its source reference. Study the federal topics and state-specific material included in the app, then check your state's current CDL manual and licensing-agency guidance for requirements that apply to you. PRACTICE YOUR PRE-TRIP CHECKS Use the trainer to identify vehicle components, describe the checks you would make, and explain safety concerns. Follow your state's current CDL manual and test instructions. The trainer does not require a script; examples are optional prompts, so use your own words. Trainer feedback is for practice and is not an official test score. STUDY BY CDL CLASS AND ENDORSEMENT Choose the class and topics you want to study. Review missed questions and practice the included CDL subjects at your own pace. Some CDL question translations are still under review and may appear in English with a notice. This app is study material, not an ELDT course and not a substitute for training required by FMCSA rules. Practice is not the exam. Check your state's current commercial driver handbook and official licensing-agency information. For support, visit https://cdlpermitprep.org/support. CDL Permit Prep is an independent study product and is not an official licensing-agency service.

About

CDL Practice Test Pro

Read full description

The federal CDL knowledge test requires 80 percent to pass, across eight subtests: General Knowledge, Air Brakes and Combination Vehicles, which every Class A applicant sits, plus five endorsements you choose based on what you plan to haul: Doubles/Triples, Tank Vehicles, Hazardous Materials, Passenger and School Bus. This app drills every subtest, one question at a time, and explains the reasoning behind every answer. WHAT IS INSIDE - Over 1,400 practice questions across all eight CDL subtests - An explanation with every question, showing why the answer is correct - Core mock exam: 30 questions blending General Knowledge, Air Brakes and Combination Vehicles, with the same 80 percent pass mark as the real test - A standalone practice exam for each endorsement you select THE SUBTESTS General Knowledge covers vehicle inspection, basic control, backing, space and speed management, hazard perception, cargo, hours of service and trip planning. Air Brakes covers system nomenclature, contaminated air, the low pressure warning, pre-trip inspection, parking brake use and grade braking. Combination Vehicles covers coupling, off-tracking, skid control and ABS. Doubles/Triples, Tank Vehicles, Hazardous Materials, Passenger and School Bus each cover the topics for that endorsement. HOW YOU STUDY - Pick your endorsements during setup, or change them later in Settings - Set a daily goal and the home screen tracks it, with a streak for the days you keep - Spaced review brings each question back just before you would forget it - Weak spots gathers the ones you keep getting wrong - Accuracy by topic group, weakest first, so you always know where the time should go - Bookmark anything you want to come back to - Enter your test date and the review schedule tightens as it approaches - Your last 50 exam attempts are kept, so you can open a past run and read through what you missed ABOUT SCORING 80 percent to pass is the actual federal minimum for the CDL knowledge test, not a house rule. This app covers federal, general content for Class A only: it does not cover state-specific additions to the test. The app shows ads. Remove Ads is a one-time purchase, with no subscription. NOT AFFILIATED This app does not represent a government entity. It is an independent study tool, not affiliated with, endorsed by, or sponsored by the FMCSA, any state DMV, or any official CDL testing program. Original Source: https://www.fmcsa.dot.gov/registration/commercial-drivers-license

Screenshots

CDL Permit Prep4 screens
CDL Practice Test Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: CDL Permit Prep at none against CDL Practice Test Pro's 1. CDL Permit Prep also leads on ads (none vs shown) and device support (3 vs 1). CDL Practice Test Pro's advantage is iOS requirement (16.4 vs 26.0). On price 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. CDL Practice Test Pro sells 1 one-off in-app purchase. CDL Permit Prep asks for nothing beyond the download.

UpkeepUpdate frequency

CDL Permit Prep ships an update every 4 days, CDL Practice Test Pro every 2 days. Both last shipped on November 10, 2026.

Scorecard4 real differences · 5 level
CDL Permit Prep versus CDL Practice Test Pro: the parameters behind the verdict, then further details
ParameterCDL Permit PrepCDL Practice Test Pro
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 daysEvery 2 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS26.016.4 — better
Further details — not scored
Size100 MB60 MB
Age rating4+4+
DeveloperSurabhi AgnihotriUfuk Guler

In-app purchases

None

CDL Permit Prep

No in-app purchases

1 purchases

CDL Practice Test Pro

One-time1
  • Remove Ads$3.99

Questions

Is CDL Permit Prep free?
CDL Permit Prep is free to download, with no in-app purchases.
Is CDL Practice Test Pro free?
CDL Practice Test Pro is free to download, with in-app purchases available.
Do CDL Permit Prep or CDL Practice Test Pro have ads?
CDL Practice Test Pro shows ads; CDL Permit Prep does not.
Which is updated more often, CDL Permit Prep or CDL Practice Test Pro?
CDL Permit Prep ships an update every 4 days, and CDL Practice Test Pro every 2 days. Most recently, CDL Permit Prep was updated on November 10, 2026 and CDL Practice Test Pro on November 10, 2026.

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