TetraClock vs Skyline Widget
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Skyline Widget
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A sky beyond the Home Screen. Skyline turns a Home Screen widget into a window. Beyond it lies a landscape, and its sky keeps changing colour all day long. ■ The colour is the sky, right now The sky is not a picture. The sun's position is computed from the date and the place, and the sky is drawn in the colour of that moment. Indigo before dawn, white morning, blue noon, orange dusk, then night. Whenever you look, the same hour is passing outside. ■ Anywhere in the world Pick a city and the sky is drawn in that city's local time. If it is night where you are but daytime there, the widget stays in daylight. In Reykjavík in summer, 10 p.m. is still bright. Search covers the whole world, and once chosen, no connection is needed. ■ A widget that moves At night, stars flicker — rarely, irregularly. Choose rain and drops run down the glass. You notice the movement when you happen to glance at the Home Screen; it is that restrained. ■ Twelve views Sea, Sky, Sunlight, Wind, Waves, City, Peaks, Forest, Meadow, Desert, Fog, Rain. Six frame colours, and two panes side by side make one wide window. StandBy is supported. ■ Today's Sky Sunrise, solar noon and sunset for your chosen place, the length of the day, the difference from tomorrow, where today ranks in the year, and how many days to the next solstice. Move the time and the whole screen becomes that hour's sky. A reminder shortly before sunset can be set. ■ Everything happens on device Not one photograph is used. Sky, sun and stars are all computed and drawn. The widget makes no network requests. There are no ads. Four views are free, along with worldwide place selection, Today's Sky, notifications and StandBy. A one-time in-app purchase unlocks the remaining eight views, six frame colours and the star-twinkle setting.
Screenshots
Verdict
The clearest difference is ads: Skyline Widget at none against TetraClock's shown. TetraClock's advantage is update cadence (every 2 days vs every 5 weeks) and device support (3 vs 1). On price 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TetraClock ships an update every 2 days, Skyline Widget every 5 weeks. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.
| Parameter | TetraClock | Skyline Widget |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 days — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Legal Prompt Inc. | Takayuki Hamuro |
In-app purchases
TetraClock
No in-app purchases
Skyline Widget
No in-app purchases
Questions
Is TetraClock free?
Is Skyline Widget free?
Do TetraClock or Skyline Widget have ads?
Which is updated more often, TetraClock or Skyline Widget?
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