# CDL Ace vs CDL Prep

The clearest difference is in-app purchases: CDL Prep at none against CDL Ace's 1. CDL Prep also leads on update cadence (daily vs fortnightly) and iOS requirement (15.0 vs 17.0). CDL Ace's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. CDL Ace sells 1 in-app purchase, starting at $4.99 per month. CDL Prep asks for nothing beyond the download.

CDL Ace ships an update fortnightly, CDL Prep daily. The most recent releases landed on September 25, 2026 and August 30, 2026 respectively.

## The numbers

| Metric | CDL Ace | CDL Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Daily** |
| Size | 33 MB | 41 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Jaret Priddy](https://appshunter.io/developer/6786967913) | [White Hat Mgmt LLC](https://appshunter.io/developer/6803319341) |

## What reviewers say

### CDL Ace

[App page](https://appshunter.io/ios/app/cdl-ace-permit-test-prep/id6786967911)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CDL Ace Premium | $4.99 | per month |


### CDL Prep

[App page](https://appshunter.io/ios/app/cdl-prep-cdl-practice-test/id6803319339)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CDL Ace free?

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

### Is CDL Prep free?

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

### Do CDL Ace or CDL Prep have ads?

CDL Prep shows ads; CDL Ace does not.

### Which is updated more often, CDL Ace or CDL Prep?

CDL Ace ships an update fortnightly, and CDL Prep daily. Most recently, CDL Ace was updated on September 25, 2026 and CDL Prep on August 30, 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.*