# Hacker Clock vs Hephaestus

The clearest difference is update cadence: Hephaestus at every 2 months against Hacker Clock's every 15 months. Hacker Clock's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hacker Clock ships an update every 15 months, Hephaestus every 2 months. The most recent releases landed on September 26, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Hacker Clock | Hephaestus |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 12 MB | 11 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Leszek Szary](https://appshunter.io/developer/464282200) | [Giovanni Logarzo](https://appshunter.io/developer/1549657291) |

## 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


### Hephaestus

[App page](https://appshunter.io/ios/app/hephaestus-build-your-future/id1599338084)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hacker Clock free?

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

### Is Hephaestus free?

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

### Do Hacker Clock or Hephaestus have ads?

Neither Hacker Clock nor Hephaestus shows ads.

### Which is updated more often, Hacker Clock or Hephaestus?

Hacker Clock ships an update every 15 months, and Hephaestus every 2 months. Most recently, Hacker Clock was updated on September 26, 2026 and Hephaestus on September 8, 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.*