# CDL Study Prep vs CDL

The clearest difference is iOS requirement: CDL at 13.0 against CDL Study Prep's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | CDL Study Prep | CDL |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 35 MB | 25 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Damilola Adedeji](https://appshunter.io/developer/1092994289) | [KIEU DUC](https://appshunter.io/developer/6798530820) |

## What reviewers say

### CDL Study Prep

[App page](https://appshunter.io/ios/app/cdl-study-prep-2026/id6763359347)

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

**In-app purchases:** none


### CDL

[App page](https://appshunter.io/ios/app/cdl-practice-test-2026/id6802312899)

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

**In-app purchases:** none


## Frequently asked questions

### Is CDL Study Prep free?

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

### Is CDL free?

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

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

Neither CDL Study Prep nor CDL shows ads.

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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.*