Hacker Clock vs When
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
When
This app offers a minimalist flip clock experience with customizable widgets. It features a full-screen display with classic page-turning animations and adjustable brightness. Personalize your time display with options for seconds, date, and week.
- Full-screen classic flip animation
- Minimalist design style
- Customizable time display (seconds, date, week)
- 12/24 hour mode switching
- Adjustable screen brightness
- Multiple widget options (Flip Clock, Digital Clock, Calendar, Progress Bar, Disc Clock)
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It is a must-have personalized posing artifact for hipsters, a must-have tool for exam preparation and study, and hard work. Eye-catching digital digital watch display, convenient for your living room, any angle of the work desk to watch the time. Full screen flip, clock display more prominent, no matter where you put it, it is a beautiful scenery. Widgets: - Flip Clock Widget - Digital Clock Widget - Friday Calendar Widget - Progress Bar Widget - Disc Clock Widget Special Features. 1, full-screen classic page animation, minimalist design style 2、Free control of the display of time: seconds, date, week is free to control the display of hidden 3, 12 and 24 hours mode switching 4, left and right slide the clock screen, adjust the brightness of the screen
Screenshots
Verdict
The clearest difference is review sentiment: When at 90% against Hacker Clock's 54%. When also leads on update cadence (weekly vs every 15 months) and monetization model (ad-supported vs paid). Hacker Clock's advantage is ads (none vs shown). On price, ratings volume, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
When holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 41 and 28 respectively. Written reviews point the same way: 54% of Hacker Clock's written reviews are positive against 90% of When's.
Hacker Clock ships an update every 15 months, When weekly. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.
| Parameter | Hacker Clock | When |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (41 ratings) | 4.7 (28 ratings) — better |
| Positive reviews | 53.8% of reviews | 90.0% of reviews — better |
| Number of ratings | 41 — better | 28 |
| Update frequency | Every 15 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Leszek Szary | 磊 岑 |
Customer experience
Hacker Clock
When
In-app purchases
Hacker Clock
No in-app purchases
When
No in-app purchases
