45CLOCK vs TetraClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
45CLOCK
This utility app reimagines timekeeping by setting an hour to 45 minutes. The clock's long hand completes a full cycle in 45 minutes, offering a unique perspective on daily hours.
- 45-minute hour concept
- Unique clock face
- Alternative time perception
- Simple utility tool
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If an hour is determined as 45 minutes, You get 32 hours per one day! This clock's long hand turns a cycle in 45 minutes.
TetraClock
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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 ads: 45CLOCK at none against TetraClock's shown. 45CLOCK also leads on iOS requirement (8.0 vs 14.0). TetraClock's advantage is update cadence (every 2 days vs every 16 months). On price, 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.
45CLOCK ships an update every 16 months, TetraClock every 2 days. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.
| Parameter | 45CLOCK | TetraClock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 16 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 6 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomohiro Yamashita | Legal Prompt Inc. |
In-app purchases
45CLOCK
No in-app purchases
TetraClock
No in-app purchases
