# ZeroDay Dev vs JavaScript Programming

The clearest difference is in-app purchases: JavaScript Programming at none against ZeroDay Dev's 1. JavaScript Programming also leads on update cadence (daily vs weekly) and iOS requirement (15.1 vs 17.0). ZeroDay Dev's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. ZeroDay Dev sells 1 one-off in-app purchase. JavaScript Programming asks for nothing beyond the download.

ZeroDay Dev ships an update weekly, JavaScript Programming daily. The most recent releases landed on October 6, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | ZeroDay Dev | JavaScript Programming |
| --- | --- | --- |
| 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** | Yes |
| Update frequency | Weekly | **Daily** |
| Monetization | Free | — |
| Size | 80 MB | 37 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [John Lawniczak](https://appshunter.io/developer/1882793043) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### 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 track your progress through curated learning paths. The app is designed for offline use, allowing you to learn anytime, anywhere.

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

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Content | $4.99 | one-time |


### JavaScript Programming

[App page](https://appshunter.io/ios/app/javascript-programming/id6768372489)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZeroDay Dev free?

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

### Is JavaScript Programming free?

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

### Do ZeroDay Dev or JavaScript Programming have ads?

JavaScript Programming shows ads; ZeroDay Dev does not.

### Which is updated more often, ZeroDay Dev or JavaScript Programming?

ZeroDay Dev ships an update weekly, and JavaScript Programming daily. Most recently, ZeroDay Dev was updated on October 6, 2026 and JavaScript Programming on September 29, 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.*