Hacker Clock vs Calcvier
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
Calcvier
Transform your device's keyboard into a powerful calculator. Perform quick calculations directly within any app without switching screens or copying and pasting results.
- Calculator keyboard integration
- Perform calculations anywhere
- No app switching required
- No copy-pasting results
- Use in Notes, Mail, Safari, Messages
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The Calcvier will turn your keyboard into Calculator! Add calculator keyboard to make fast calculations anywhere. No need to switch between apps or use some widget, no need to copy and paste results! To enable Calcvier on your device: 1) Open Settings app 2) Go to General > Keyboard > Keyboards 3) Tap Add New Keyboard... 4) Tap Calcvier You can use Calcvier keyboard in any app such Notes, Mail, Safari, Messages and other!
Screenshots
Verdict
The clearest difference is price: Hacker Clock at Free against Calcvier's $2.99. Hacker Clock also leads on iOS requirement (12.0 vs 15.6). Calcvier's advantage is review sentiment (81% vs 54%) and ratings volume (143 vs 42). On rating, update cadence, ads and in-app purchases 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
Hacker Clock is free to download; Calcvier costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.5 for Hacker Clock against 4.4 for Calcvier. Both are backed by a comparable volume of ratings — 42 and 143 respectively. Written reviews are what separate them: 54% of Hacker Clock's written reviews are positive against 81% of Calcvier's.
Hacker Clock ships an update every 15 months, Calcvier every 8 months. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.
| Parameter | Hacker Clock | Calcvier |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.5 (42 ratings) — better | 4.4 (143 ratings) |
| Positive reviews | 53.8% of reviews | 81.2% of reviews — better |
| Number of ratings | 42 | 143 — better |
| Update frequency | Every 15 months | Every 8 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 12 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Leszek Szary | Sergei Shpygar |
Customer experience
Hacker Clock
Calcvier
In-app purchases
Hacker Clock
No in-app purchases
Calcvier
No in-app purchases
