# Hacker Clock vs Studio Clock GX2021

The clearest difference is in-app purchases: Hacker Clock at none against Studio Clock GX2021's 9. Hacker Clock also leads on iOS requirement (12.0 vs 14.1). Studio Clock GX2021's advantage is update cadence (every 3 days vs every 15 months) and review sentiment (73% vs 54%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Studio Clock GX2021 sells 9 one-off in-app purchases. Hacker Clock asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Hacker Clock against 4.5 for Studio Clock GX2021. Both are backed by a comparable volume of ratings — 42 and 79 respectively. Written reviews are what separate them: 54% of Hacker Clock's written reviews are positive against 73% of Studio Clock GX2021's.

Hacker Clock ships an update every 15 months, Studio Clock GX2021 every 3 days. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Hacker Clock | Studio Clock GX2021 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (42 ratings)](https://appshunter.io/ios/app/hacker-clock-green-matrix/id659883519/reviews)** | [4.5 (79 ratings)](https://appshunter.io/ios/app/studio-clock-gx2021/id1584184143/reviews) |
| Number of ratings | 42 | **79** |
| Positive reviews | 53.8% of reviews | **73.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 12 MB | 3 MB |
| Requires iOS | **12.0** | 14.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Leszek Szary](https://appshunter.io/developer/464282200) | [Trevor Kamhunga](https://appshunter.io/developer/1444171188) |

## 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


### Studio Clock GX2021

[App page](https://appshunter.io/ios/app/studio-clock-gx2021/id1584184143)

Transform your space into a professional studio with a highly accurate LED clock inspired by 1970s designs. Perfect for live shows, streams, and podcasts, it offers precise timing and customizable visual elements.

**Highlights:** 1/1000 second accuracy, Leap second support, 1970s LED design, Customizable colors, Quarter/half/hourly pips, Greenwich Time Signal (GTS)

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tangerine | $0.99 | one-time |
| Aqua | $0.99 | one-time |
| Plum | $0.99 | one-time |
| Banana | $0.99 | one-time |
| Strawberry | $0.99 | one-time |
| Bubblegum | $0.99 | one-time |
| Flora | $0.99 | one-time |
| Maraschino | $0.99 | one-time |
| Color Bundle | $2.99 | one-time |


## Frequently asked questions

### Is Hacker Clock free?

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

### Is Studio Clock GX2021 free?

Studio Clock GX2021 is free to download, with in-app purchases available.

### Which has better reviews, Hacker Clock or Studio Clock GX2021?

Hacker Clock is rated higher. Hacker Clock averages 4.5 out of 5 from 42 ratings, while Studio Clock GX2021 averages 4.5 from 79 ratings.

### Do Hacker Clock or Studio Clock GX2021 have ads?

Neither Hacker Clock nor Studio Clock GX2021 shows ads.

### Which is updated more often, Hacker Clock or Studio Clock GX2021?

Hacker Clock ships an update every 15 months, and Studio Clock GX2021 every 3 days. Most recently, Hacker Clock was updated on October 23, 2026 and Studio Clock GX2021 on October 21, 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.*