# Hacker Clock vs Stress Matrix

The clearest difference is in-app purchases: Hacker Clock at none against Stress Matrix's 1. Hacker Clock also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.2). Stress Matrix's advantage is update cadence (daily vs every 15 months). On price and ads there is nothing between them.

Both are free to download. Stress Matrix sells 1 one-off in-app purchase. Hacker Clock asks for nothing beyond the download.

Hacker Clock ships an update every 15 months, Stress Matrix daily. The most recent releases landed on September 26, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Hacker Clock | Stress Matrix |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (41 ratings)](https://appshunter.io/ios/app/hacker-clock-green-matrix/id659883519/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 53.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Daily** |
| Monetization | Paid | — |
| Size | 12 MB | 2 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Leszek Szary](https://appshunter.io/developer/464282200) | [Mehmet Erdem Devge](https://appshunter.io/developer/1464750482) |

## What reviewers say

### Hacker Clock

[App page](https://appshunter.io/ios/app/hacker-clock-green-matrix/id659883519)

Transform your device into a unique clock displaying animated hexadecimal code. Watch green hexadecimal values flow across the screen, simulating complex data processing. Ideal for computer enthusiasts, hackers, and fans of futuristic aesthetics.

**Highlights:** Animated hexadecimal code display, Three color variants (green, red, blue), Horizontal and vertical display modes, 12- and 24-hour format options, Unique clock for geeks and fans

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

**In-app purchases:** none


### Stress Matrix

[App page](https://appshunter.io/ios/app/stress-matrix/id6736342574)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| lifetime | $1.99 | one-time |


## Frequently asked questions

### Is Hacker Clock free?

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

### Is Stress Matrix free?

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

### Do Hacker Clock or Stress Matrix have ads?

Neither Hacker Clock nor Stress Matrix shows ads.

### Which is updated more often, Hacker Clock or Stress Matrix?

Hacker Clock ships an update every 15 months, and Stress Matrix daily. Most recently, Hacker Clock was updated on September 26, 2026 and Stress Matrix on September 9, 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.*