CDL Prep Hero
Practice Tests for Permit Exam
About
Prepare for your commercial driver's license knowledge tests with interactive lessons and practice questions. Features include state-specific content, mock exams, and a unique pre-trip inspection coach. Available in English and Spanish.
What's New in CDL Prep Hero
1.0.4
October 24, 2026
Fall special: full access is free through November 30. Tap Unlock 90 days free on the pass screen. No payment, no sign-in. • A clearer App Store page so drivers can find the right practice tests.
MoreSubscriptions & In-App Purchases
$8.99
Full Access — 90 Days
All lessons, practice and exams. No automatic renewal.
Developer apps
FAQ
What is CDL Prep Hero?
CDL Prep Hero is an independent study aid designed to help users prepare for US commercial driver's license knowledge tests. It offers lessons, practice questions, mock exams, and a pre-trip inspection coach.
What content does CDL Prep Hero cover?
It covers general knowledge, air brakes, combination vehicles, tank vehicles, hazardous materials, doubles and triples, passenger, and school bus endorsements. Users can select their state, license class, and endorsements for tailored study.
Does CDL Prep Hero offer a free trial?
Yes, users can try free lessons and a ten-question sample test without an account. Additionally, there was a Fall Special offering 90 days of full access for free through November 30, 2026, with no payment or sign-in required.
How much does CDL Prep Hero cost?
After the initial free access period, full access to the course is available for a one-time payment of $8.99 for 90 days. There is no automatic renewal.
Can I use CDL Prep Hero offline?
An internet connection is required for account and purchase verification. However, study progress and saved questions remain on the device and do not sync between phones, suggesting some offline functionality for core study materials.
What devices is CDL Prep Hero available on?
Based on the provided data, CDL Prep Hero is currently supported on iPhones.
How often is CDL Prep Hero updated?
The app was last updated on October 24, 2026, with version 1.0.4. This indicates a recent update, suggesting ongoing development and maintenance.
Does CDL Prep Hero have ads?
No, the application data indicates that CDL Prep Hero does not have advertisements.
