# CDL Prep vs Iowa CDL Prep Test

The clearest difference is in-app purchases: CDL Prep at none against Iowa CDL Prep Test's 1. CDL Prep also leads on ratings volume (6.7K vs 18) and chart position (#132 vs unranked). Iowa CDL Prep Test's advantage is rating (4.9 vs 4.7) and iOS requirement (13.4 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Iowa CDL Prep Test sells 1 one-off in-app purchase. CDL Prep asks for nothing beyond the download.

Iowa CDL Prep Test holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: CDL Prep has 6.7K ratings behind it against 18, so its average is the more settled of the two.

CDL Prep ships an update every 2 months, Iowa CDL Prep Test every 4 months. The most recent releases landed on October 18, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CDL Prep | Iowa CDL Prep Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (6.7K ratings)](https://appshunter.io/ios/app/cdl-prep/id1101536521/reviews) | **[4.9 (18 ratings)](https://appshunter.io/ios/app/iowa-cdl-prep-test/id1668496546/reviews)** |
| Number of ratings | **6.7K** | 18 |
| Positive reviews | 80.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Best chart rank | **#132** | — |
| Size | 6 MB | 25 MB |
| Requires iOS | 15.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeffrey Diaz](https://appshunter.io/developer/1101536520) | [Altaf Mogal](https://appshunter.io/developer/1654308061) |

## What reviewers say

### CDL Prep

[App page](https://appshunter.io/ios/app/cdl-prep/id1101536521)

**Currently charting:** #132 Top Free · Education (US App Store)

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.

**Highlights:** Over 500 practice questions, Timed exam mode, Endorsement topic exams, Instant feedback in practice mode, Randomized answer order

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate questions
- 👍 Helpful for passing tests
- 💯 Exactly like real test
- 🙌 Great study tool
- ✅ Passed on first try

**What reviewers complain about**

- 🔍 Some questions not on app
- 🔢 Too many ads
- 🔀 Can't close ads
- 🤔 Inconsistent answers

**Reported bugs**

- Back button issues
- Incorrect answers in app

**Requested features**

- Ad-free version
- Ability to report incorrect questions
- Include state-specific requirements


### Iowa CDL Prep Test

[App page](https://appshunter.io/ios/app/iowa-cdl-prep-test/id1668496546)

Prepare for your Iowa Commercial Driver's License (CDL) exam with this comprehensive study tool. It offers practice tests based on the official manual, tracks your progress, and highlights areas needing improvement. Bookmark questions and review answers with explanations to ensure you're ready for the official test.

**Highlights:** Practice tests based on official manual, Progress tracking and weak question identification, Bookmark questions for later review, Review test questions with answers and explanations, Multiple-choice questions with scoring, Study various CDL topics including air brakes and hazmat

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is CDL Prep free?

CDL Prep is free to download, with no in-app purchases.

### Is Iowa CDL Prep Test free?

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

### Which has better reviews, CDL Prep or Iowa CDL Prep Test?

Iowa CDL Prep Test is rated higher. CDL Prep averages 4.7 out of 5 from 6.7K ratings, while Iowa CDL Prep Test averages 4.9 from 18 ratings.

### Do CDL Prep or Iowa CDL Prep Test have ads?

Both CDL Prep and Iowa CDL Prep Test show ads.

### Which is updated more often, CDL Prep or Iowa CDL Prep Test?

CDL Prep ships an update every 2 months, and Iowa CDL Prep Test every 4 months. Most recently, CDL Prep was updated on October 18, 2026 and Iowa CDL Prep Test on October 13, 2026.

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