iDaliClock vs TetraClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iDaliClock
This app displays a melting digital clock where digits morph into their new shapes as time changes. It offers date display, 12/24 hour toggling, and adjustable digit count via gestures. Inspired by a 1984 Macintosh program.
- Melting digit animation
- Date display on tap
- 12/24 hour toggle
- Adjustable digit count
- Gesture controls (swipe, pinch)
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Dali Clock is a melting digital clock. When a digit changes, it morphs into its new shape. Tap to display the date. Double-tap to toggle 12- and 24-hour time. Swipe or pinch to change the number of digits displayed. You may have first seen this program in 1984 on the original Macintosh 128k!
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: iDaliClock at 5.0 against TetraClock's 3.7. iDaliClock also leads on ads (none vs shown) and monetization model (free vs ad-supported). TetraClock's advantage is update cadence (every 2 days vs every 10 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.
iDaliClock holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: iDaliClock has 25 ratings behind it against 3, so its average is the more settled of the two.
iDaliClock ships an update every 10 months, TetraClock every 2 days. The most recent releases landed on October 21, 2026 and October 22, 2026 respectively.
| Parameter | iDaliClock | TetraClock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (25 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 25 — better | 3 |
| Update frequency | Every 10 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 2 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Jamie Zawinski | Legal Prompt Inc. |
In-app purchases
iDaliClock
No in-app purchases
TetraClock
No in-app purchases
