Cool Ukiyo vs Big Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cool Ukiyo
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This is a digital and analog clock with a background of famous Ukiyo-e prints. You can choose from 40 different Ukiyo-e works from various periods. The time, analog clock, and Ukiyo-e can be moved with a finger. The analog clock and Ukiyo-e can be zoomed in and out with two fingers. Seconds can also be displayed. The background color can be selected from 5 different colors. Touching the time character switches to setting mode. When in setting mode, you can change the year, month, and day of the week to various formats by touching. The year, month, day of the week, a.m./p.m., and seconds can be erased. You can also switch between 12-hour and 24-hour displays. Rotation of the screen in portrait and landscape mode is also supported. The size of the text can be adjusted in steps by pressing buttons such as "2X" and "3X". The time signal can be selected from 78 different tones.
Big Clock
Transform your device into a large, clear digital clock. Ideal for bedside tables, desks, or workouts, it offers an always-on display with customizable themes and brightness for easy readability in any environment.
- Fullscreen digital clock
- Always-on display mode
- Light and dark themes
- Brightness control
- Portrait and landscape support
- Minimal design
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Big Clock turns your iPhone or iPad into a clean, easy-to-read digital clock that stays visible when you need it most. Use it as a bedside night clock, desk clock, workout clock, or minimal always-on clock during work and study. Designed for simplicity, readability, and focus. FEATURES • Big fullscreen digital clock • Always-on display mode • Optional seconds display • Light and dark themes • Brightness control • Fullscreen mode • Works in portrait and landscape • One tap controls • Minimal and distraction-free design • Supports iPhone and iPad PERFECT FOR • Bedside nightstand clock • Desk setup clock • Kitchen clock • Study sessions • Work focus • Workout sessions • Low-light environments • Time visible from a distance Big Clock launches instantly and keeps the time clearly visible from across the room.
Screenshots
Verdict
The clearest difference is ads: Big Clock at none against Cool Ukiyo's shown. Big Clock also leads on update cadence (weekly vs monthly). Cool Ukiyo's advantage is iOS requirement (12.0 vs 16.0). 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. Cool Ukiyo sells 1 one-off in-app purchase and Big Clock sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Cool Ukiyo ships an update monthly, Big Clock weekly. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.
| Parameter | Cool Ukiyo | Big Clock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (6 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Monthly | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 53 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Mihoko Araki | Nataliia Zarudna |
In-app purchases
Cool Ukiyo
- Cool Ukiyo-e Clock with no ads$3.99
Big Clock
- Premium$1.99
- Premium + Coffee$3.99
- Premium + Coffee + Croissant$7.99
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- Premium + Big Support$12.99
Questions
Is Cool Ukiyo free?
Is Big Clock free?
Do Cool Ukiyo or Big Clock have ads?
Which is updated more often, Cool Ukiyo or Big Clock?
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