Custom Digital Clock vs TetraClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Custom Digital Clock
Display a stylish digital clock on your smartphone. Personalize the clock's appearance with custom coloring options to match your style.
- Stylish digital clock display
- Customizable coloring
- Smartphone integration
- Personalized appearance
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Stylish digital clock displayed on your smartphone. Customize the coloring freely.
TetraClock
This clock app uses falling tetromino blocks to display the time. Customize colors, animations, and display formats. Note that the displayed time may have slight discrepancies due to animation effects.
- Tetromino block time display
- Customizable colors and animations
- 12/24-hour format
- Seconds display toggle
- Adjustable falling speed
- Background color options
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'TetraClock' is a clock app that represents the time by stacking seven types of single-sided tetromino-shaped blocks as they fall. The differences from the paid version are as follows: ・Contains ads ・No Watch App [How to Use] Tap the screen: Open the settings screen. Long press the screen: Stack the blocks again. [Main Features] - Switch between 12/24-hour display - Toggle seconds display ON/OFF - Monotone display - Fill in ON/OFF - Change outline color - Change transition animations - Change falling speed - Change background color [Notices] Due to the animation effect used for changing numbers, there may be a discrepancy between the displayed time and the actual time. Please do not use the displayed time as a basis for important decisions.
Screenshots
Verdict
The clearest difference is rating: TetraClock at 3.7 against Custom Digital Clock's 1.0. TetraClock also leads on update cadence (every 2 days vs every 9 months) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model 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.
TetraClock holds the better App Store score, 3.7 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Custom Digital Clock ships an update every 9 months, TetraClock every 2 days. The most recent releases landed on October 2, 2026 and October 22, 2026 respectively.
| Parameter | Custom Digital Clock | TetraClock |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 9 months | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 14.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | tadashi endo | Legal Prompt Inc. |
In-app purchases
Custom Digital Clock
No in-app purchases
TetraClock
No in-app purchases
Questions
Is Custom Digital Clock free?
Is TetraClock free?
Which has better reviews, Custom Digital Clock or TetraClock?
Do Custom Digital Clock or TetraClock have ads?
Which is updated more often, Custom Digital Clock or TetraClock?
Other comparisons
