# SecurityX Exam by Rocket Prep vs ZeroDay Dev

The clearest difference is in-app purchases: ZeroDay Dev at none against SecurityX Exam by Rocket Prep's 6. ZeroDay Dev also leads on update cadence (weekly vs every 5 months). SecurityX Exam by Rocket Prep's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SecurityX Exam by Rocket Prep sells 6 in-app purchases, starting at $8.99 per 7 days. ZeroDay Dev asks for nothing beyond the download.

SecurityX Exam by Rocket Prep ships an update every 5 months, ZeroDay Dev weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SecurityX Exam by Rocket Prep | ZeroDay Dev |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/zeroday-dev/id6760129673/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | — | Free |
| Size | 42 MB | 97 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Darya Pyzhyk](https://appshunter.io/developer/1799009188) | [John Lawniczak](https://appshunter.io/developer/1882793043) |

## What reviewers say

### SecurityX Exam by Rocket Prep

[App page](https://appshunter.io/ios/app/securityx-exam-by-rocket-prep/id6752248998)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SecurityX Weekly Full Access | $8.99 | per 7 days |
| SecurityX Monthly Full Access | $22.99 | per month |
| SecurityX Monthly Full Access | $22.99 | per month |
| SecurityX_mock_tries_1 | $4.99 | one-time |
| SecurityX_mock_tries_3 | $9.99 | one-time |
| SecurityX_mock_tries_5 | $14.99 | one-time |


### ZeroDay Dev

[App page](https://appshunter.io/ios/app/zeroday-dev/id6760129673)

Learn secure coding and blockchain security through hands-on challenges and real-world exploit analysis. Practice building exploit intuition with interactive exercises and prepare for security assessments with timed tests. Offers curated learning tracks and offline access.

**Highlights:** Hands-on coding challenges, Real-world exploit analysis, Interactive practice exercises, Timed security assessment exams, Curated learning tracks, Offline-first functionality, Progress tracking and gamification

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

**In-app purchases:** none


## Frequently asked questions

### Is SecurityX Exam by Rocket Prep free?

SecurityX Exam by Rocket Prep is free to download, with in-app purchases available.

### Is ZeroDay Dev free?

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

### Do SecurityX Exam by Rocket Prep or ZeroDay Dev have ads?

Neither SecurityX Exam by Rocket Prep nor ZeroDay Dev shows ads.

### Which is updated more often, SecurityX Exam by Rocket Prep or ZeroDay Dev?

SecurityX Exam by Rocket Prep ships an update every 5 months, and ZeroDay Dev weekly. Most recently, SecurityX Exam by Rocket Prep was updated on October 25, 2026 and ZeroDay Dev on October 31, 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.*