# CDP Knowledge Test vs Ec

CDP Knowledge Test and Ec are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. CDP Knowledge Test sells 2 in-app purchases, starting at $11.99 per month and Ec sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | CDP Knowledge Test | Ec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ec-council-ceh-v13-prep-2026/id6783626395/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | — | Freemium |
| Size | 9 MB | 21 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) | [Ha Quyen Ho Thi](https://appshunter.io/developer/1886076061) |

## What reviewers say

### CDP Knowledge Test

[App page](https://appshunter.io/ios/app/cdp-knowledge-test/id6740606245)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $11.99 | per month |
| Lifetime version | $24.99 | one-time |


### Ec

[App page](https://appshunter.io/ios/app/ec-council-ceh-v13-prep-2026/id6783626395)

Prepare for the Certified Ethical Hacker v13 exam with focused practice questions, mock exams, and progress tracking. Study key domains, review missed questions, and enhance your readiness for the cybersecurity certification.

**Highlights:** CEH v13 practice questions, Topic-based training across 9 exam domains, Full mock exams, Progress tracking, Bookmarks for review, Missed question review, Dark mode interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| monthly | $5.99 | per month |


## Frequently asked questions

### Is CDP Knowledge Test free?

CDP Knowledge Test is free to download, with in-app purchases available.

### Is Ec free?

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

### Do CDP Knowledge Test or Ec have ads?

Neither CDP Knowledge Test nor Ec 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.*