# CDL Study vs Iowa CDL Prep Test

The clearest difference is ads: CDL Study at none against Iowa CDL Prep Test's shown. CDL Study also leads on ratings volume (2K vs 18). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. CDL Study sells 2 in-app purchases, starting at $19.99 per month and Iowa CDL Prep Test sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Iowa CDL Prep Test holds the better App Store score, 4.9 against 4.8. That said, the two scores are not equally well evidenced: CDL Study has 2K ratings behind it against 18, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | CDL Study | Iowa CDL Prep Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2K ratings)](https://appshunter.io/ios/app/cdl-study-practice-test-2026/id1447718378/reviews) | **[4.9 (18 ratings)](https://appshunter.io/ios/app/iowa-cdl-prep-test/id1668496546/reviews)** |
| Number of ratings | **2K** | 18 |
| Positive reviews | 55.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 47 MB | 25 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Adrian Del Jesus Sanchez Mendez](https://appshunter.io/developer/1443887258) | [Altaf Mogal](https://appshunter.io/developer/1654308061) |

## What reviewers say

### CDL Study

[App page](https://appshunter.io/ios/app/cdl-study-practice-test-2026/id1447718378)

Prepare for your Commercial Driver's License exam with state-specific practice tests and over 2,000 questions. Master endorsements, track your progress, and study offline to pass on your first attempt.

**Highlights:** 2,000+ state-specific questions, HazMat and endorsement coverage, Smart progress tracking, Unlimited exam simulators, Offline mode, English & Español support

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $19.99 | per month |
| CDL Study Premium | $71.90 | one-time |

**What reviewers like**

- 🚀 Helpful for studying and preparing for exams
- 👍 Easy to use and understand
- 👍 Comprehensive content coverage
- 👍 Useful for passing the permit test

**What reviewers complain about**

- 🐛 Incorrect answers marked as wrong
- 🐛 Questions don't match the answers
- 🐛 Poorly worded questions
- 🤬 Subscription cancellation issues
- 🤬 Intrusive ads that can't be closed

**Reported bugs**

- Incorrect answers marked as wrong
- Questions not matching the answers
- Poorly worded questions
- Subscription cancellation issues
- Intrusive ads that can't be closed

**Requested features**

- Improve accuracy of questions and answers
- Enhance user interface and experience
- Provide better subscription management options
- Optimize ad placement and frequency


### 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 Study free?

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

### Is Iowa CDL Prep Test free?

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

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

Iowa CDL Prep Test is rated higher. CDL Study averages 4.8 out of 5 from 2K ratings, while Iowa CDL Prep Test averages 4.9 from 18 ratings.

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

Iowa CDL Prep Test shows ads; CDL Study does not.

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

CDL Study ships an update every 4 months, and Iowa CDL Prep Test every 4 months. Most recently, CDL Study was updated on October 15, 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.*