Hacker Clock vs Studio Clock GX2021
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hacker Clock
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.
- 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
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Hacker Clock turns your iPhone into a truly unique clock displayed as animated hexadecimal code. The green hexadecimal values constantly move across the screen, making it look as if your phone is processing complex data. This application is perfect for computer geeks, hackers, and matrix fans. If you are using a binary clock, you can throw it away. Once you try this hexadecimal clock, you will never want to use any other. Summary: * A truly unique clock * Animated hexadecimal code * Three color variants: green, red, blue * Horizontal and vertical modes * 12- and 24-hour formats
Studio Clock GX2021
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.
- 1/1000 second accuracy
- Leap second support
- 1970s LED design
- Customizable colors
- Quarter/half/hourly pips
- Greenwich Time Signal (GTS)
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Need to host a time sensitive live show, stream or podcast? Turn your room into a professional studio with this clock that provides you the most accurate time, up to 1/1000 second. (+ leap second support) Design and animations are inspired by the LED clocks from the 70s, still used by radio & television studios, airports, and more. Want a more immersive experience? Enable the pips each quarter hour, half hour or every hour and turn up speakers to enjoy the Greenwich Time Signal (GTS) just like the one on the BBC radio stations. Customise the clock to match your channel or brand identity with exclusive colors, available in-app!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Hacker Clock | Studio Clock GX2021 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (42 ratings) — better | 4.5 (79 ratings) |
| Positive reviews | 53.8% of reviews | 73.0% of reviews — better |
| Number of ratings | 42 | 79 — better |
| Update frequency | Every 15 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 — better | 14.1 |
| Further details — not scored | ||
| Size | 12 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Leszek Szary | Trevor Kamhunga |
Customer experience
Hacker Clock
Studio Clock GX2021
In-app purchases
Hacker Clock
No in-app purchases
Studio Clock GX2021
- Tangerine$0.99
- Aqua$0.99
- Plum$0.99
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- Banana$0.99
- Strawberry$0.99
- Bubblegum$0.99
- Flora$0.99
- Maraschino$0.99
- Color Bundle$2.99
Questions
Is Hacker Clock free?
Is Studio Clock GX2021 free?
Which has better reviews, Hacker Clock or Studio Clock GX2021?
Do Hacker Clock or Studio Clock GX2021 have ads?
Which is updated more often, Hacker Clock or Studio Clock GX2021?
Other comparisons
