# Cool Ukiyo vs Big Clock

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.

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.

## The numbers

| Metric | Cool Ukiyo | Big Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (6 ratings)](https://appshunter.io/ios/app/big-clock-always-on-display/id6760553772/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 53 MB | 69 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [Nataliia Zarudna](https://appshunter.io/developer/1871489027) |

## What reviewers say

### Cool Ukiyo

[App page](https://appshunter.io/ios/app/cool-ukiyo-e-clock/id6503263276)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cool Ukiyo-e Clock with no ads | $3.99 | one-time |


### Big Clock

[App page](https://appshunter.io/ios/app/big-clock-always-on-display/id6760553772)

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.

**Highlights:** Fullscreen digital clock, Always-on display mode, Light and dark themes, Brightness control, Portrait and landscape support, Minimal design

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | one-time |
| Premium + Coffee | $3.99 | one-time |
| Premium + Coffee + Croissant | $7.99 | one-time |
| Premium + Big Support | $12.99 | one-time |


## Frequently asked questions

### Is Cool Ukiyo free?

Cool Ukiyo is free to download, with in-app purchases available.

### Is Big Clock free?

Big Clock is free to download, with in-app purchases available.

### Do Cool Ukiyo or Big Clock have ads?

Cool Ukiyo shows ads; Big Clock does not.

### Which is updated more often, Cool Ukiyo or Big Clock?

Cool Ukiyo ships an update monthly, and Big Clock weekly. Most recently, Cool Ukiyo was updated on October 13, 2026 and Big Clock on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*