# DC CDL Permit Practice Test vs STCW ASD Cert Prep

The clearest difference is ads: STCW ASD Cert Prep at none against DC CDL Permit Practice Test's shown. STCW ASD Cert Prep also leads on update cadence (every 3 months vs every 8 months). DC CDL Permit Practice Test's advantage is device support (3 vs 1) and iOS requirement (13.4 vs 17.2). On price and in-app purchases there is nothing between them.

Both are free to download. DC CDL Permit Practice Test sells 3 in-app purchases, starting at $2.99 per 7 days and STCW ASD Cert Prep sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

DC CDL Permit Practice Test ships an update every 8 months, STCW ASD Cert Prep every 3 months. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | DC CDL Permit Practice Test | STCW ASD Cert Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dc-cdl-permit-practice-test/id6477391715/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 9 MB |
| Requires iOS | **13.4** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jignasha Joshi](https://appshunter.io/developer/1699384056) | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) |

## What reviewers say

### DC CDL Permit Practice Test

[App page](https://appshunter.io/ios/app/dc-cdl-permit-practice-test/id6477391715)

Prepare for your District of Columbia Commercial Driver's License exam with practice questions covering all essential topics. This app offers customizable mock tests, detailed explanations, and performance analytics to help you study efficiently and build confidence for test day.

**Highlights:** Practice questions from DC CDL Manual, Customizable mock tests, Explanations for every answer, Weak and unattempted questions test, Instant test results and performance review, Progress tracking and analytics, Light, Dark, and Auto modes

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access - 7 Days | $2.99 | per 7 days |
| Premium Access - 30 Days | $4.99 | per month |
| CDL Premium Lifetime | $9.99 | one-time |


### STCW ASD Cert Prep

[App page](https://appshunter.io/ios/app/stcw-asd-cert-prep/id6740270487)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $9.99 | per month |
| Lifetime version | $24.99 | one-time |


## Frequently asked questions

### Is DC CDL Permit Practice Test free?

DC CDL Permit Practice Test is free to download, with in-app purchases available.

### Is STCW ASD Cert Prep free?

STCW ASD Cert Prep is free to download, with in-app purchases available.

### Do DC CDL Permit Practice Test or STCW ASD Cert Prep have ads?

DC CDL Permit Practice Test shows ads; STCW ASD Cert Prep does not.

### Which is updated more often, DC CDL Permit Practice Test or STCW ASD Cert Prep?

DC CDL Permit Practice Test ships an update every 8 months, and STCW ASD Cert Prep every 3 months. Most recently, DC CDL Permit Practice Test was updated on October 6, 2026 and STCW ASD Cert Prep on October 18, 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.*