# Jonsson School Engineering Day vs Arizona CDL Prep Test

The clearest difference is in-app purchases: Jonsson School Engineering Day at none against Arizona CDL Prep Test's 1. Jonsson School Engineering Day also leads on ads (none vs shown). Arizona CDL Prep Test's advantage is update cadence (every 4 months vs every 11 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Arizona CDL Prep Test sells 1 one-off in-app purchase. Jonsson School Engineering Day asks for nothing beyond the download.

Jonsson School Engineering Day ships an update every 11 months, Arizona CDL Prep Test every 4 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Jonsson School Engineering Day | Arizona CDL Prep Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (18 ratings)](https://appshunter.io/ios/app/arizona-cdl-prep-test/id1667831719/reviews)** |
| Number of ratings | — | **18** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 4 months** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 25 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [University of Texas at Dallas](https://appshunter.io/developer/552158925) | [Altaf Mogal](https://appshunter.io/developer/1654308061) |

## What reviewers say

### Jonsson School Engineering Day

[App page](https://appshunter.io/ios/app/jonsson-school-engineering-day/id1451320005)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Arizona CDL Prep Test

[App page](https://appshunter.io/ios/app/arizona-cdl-prep-test/id1667831719)

Prepare for your Arizona Commercial Driver's License exam with this comprehensive study tool. It offers over 500 practice questions, detailed explanations, and progress tracking to help you identify areas for improvement and pass your test.

**Highlights:** Over 500 practice questions, Study and practice tests, Bookmark questions, Track progress, Review weak/wrong questions, On-the-spot results with scores

**Features:** macOS Compatibility

**In-app purchases (1)**

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


## Frequently asked questions

### Is Jonsson School Engineering Day free?

Jonsson School Engineering Day is free to download, with no in-app purchases.

### Is Arizona CDL Prep Test free?

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

### Do Jonsson School Engineering Day or Arizona CDL Prep Test have ads?

Arizona CDL Prep Test shows ads; Jonsson School Engineering Day does not.

### Which is updated more often, Jonsson School Engineering Day or Arizona CDL Prep Test?

Jonsson School Engineering Day ships an update every 11 months, and Arizona CDL Prep Test every 4 months. Most recently, Jonsson School Engineering Day was updated on November 2, 2026 and Arizona CDL Prep Test on November 3, 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.*