# CDL Prep™ vs Illinois CDL Practice Test

The clearest difference is update cadence: CDL Prep™ at every 4 days against Illinois CDL Practice Test's every 8 months. CDL Prep™ also leads on ratings volume (59 vs 3). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. CDL Prep™ sells 1 in-app purchase, starting at $5.99 per 7 days and Illinois CDL Practice Test sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for CDL Prep™ against 5.0 for Illinois CDL Practice Test. That said, the two scores are not equally well evidenced: CDL Prep™ has 59 ratings behind it against 3, so its average is the more settled of the two.

CDL Prep™ ships an update every 4 days, Illinois CDL Practice Test every 8 months. The most recent releases landed on September 29, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | CDL Prep™ | Illinois CDL Practice Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (59 ratings)](https://appshunter.io/ios/app/cdl-prep/id1541781305/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/illinois-cdl-practice-test/id6477392016/reviews)** |
| Number of ratings | **59** | 3 |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 8 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 47 MB | 53 MB |
| Requires iOS | 14.1 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The PATG Group, Inc.](https://appshunter.io/developer/1214913266) | [Jignasha Joshi](https://appshunter.io/developer/1699384056) |

## What reviewers say

### CDL Prep™

[App page](https://appshunter.io/ios/app/cdl-prep/id1541781305)

Prepare for your Commercial Driver's License (CDL) written exams with over 600 practice questions. This app covers various CDL categories and simulates the actual test format, providing immediate feedback on incorrect answers. It's designed to help you pass on your first attempt across all US states.

**Highlights:** Over 600 practice questions, Simulates actual test format, Immediate feedback on incorrect answers, Covers multiple CDL categories, Applicable for all US state exams, No registration required

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Exam Subscription | $5.99 | per 7 days |


### Illinois CDL Practice Test

[App page](https://appshunter.io/ios/app/illinois-cdl-practice-test/id6477392016)

Prepare for your Illinois Commercial Driver's License exam with comprehensive practice tests and detailed explanations. Focus on specific areas, track your progress, and gain confidence for test day.

**Highlights:** Practice tests based on IL CDL Manual, Customizable mock tests, Explanations for every answer, Weak and unattempted question tests, Instant results and performance review, Progress tracking and analytics, Light, Dark, and Auto modes

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access - 7 Days | $2.99 | per 7 days |
| Premium Access - 30 Days | $4.99 | per month |
| CDL Premium Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is CDL Prep™ free?

CDL Prep™ is free to download, with in-app purchases available.

### Is Illinois CDL Practice Test free?

Illinois CDL Practice Test is free to download, with in-app purchases available.

### Which has better reviews, CDL Prep™ or Illinois CDL Practice Test?

Illinois CDL Practice Test is rated higher. CDL Prep™ averages 4.9 out of 5 from 59 ratings, while Illinois CDL Practice Test averages 5.0 from 3 ratings.

### Do CDL Prep™ or Illinois CDL Practice Test have ads?

Both CDL Prep™ and Illinois CDL Practice Test show ads.

### Which is updated more often, CDL Prep™ or Illinois CDL Practice Test?

CDL Prep™ ships an update every 4 days, and Illinois CDL Practice Test every 8 months. Most recently, CDL Prep™ was updated on September 29, 2026 and Illinois CDL Practice Test on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*