# Cool Penguin Clock vs Custom Digital Clock

The clearest difference is in-app purchases: Custom Digital Clock at none against Cool Penguin Clock's 1. Cool Penguin Clock's advantage is update cadence (every 3 weeks vs every 9 months) and iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Cool Penguin Clock sells 1 one-off in-app purchase. Custom Digital Clock asks for nothing beyond the download.

Cool Penguin Clock ships an update every 3 weeks, Custom Digital Clock every 9 months. The most recent releases landed on September 11, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Cool Penguin Clock | Custom Digital Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/custom-digital-clock/id6476612907/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 9 months |
| Monetization | — | Ad-supported |
| Size | 27 MB | 29 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [tadashi endo](https://appshunter.io/developer/1605441215) |

## What reviewers say

### Cool Penguin Clock

[App page](https://appshunter.io/ios/app/cool-penguin-clock/id6453357439)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Penguin Clock with no ads | $1.99 | one-time |


### Custom Digital Clock

[App page](https://appshunter.io/ios/app/custom-digital-clock/id6476612907)

Display a stylish digital clock on your smartphone. Personalize the clock's appearance with custom coloring options to match your style.

**Highlights:** Stylish digital clock display, Customizable coloring, Smartphone integration, Personalized appearance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cool Penguin Clock free?

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

### Is Custom Digital Clock free?

Custom Digital Clock is free to download, with no in-app purchases.

### Do Cool Penguin Clock or Custom Digital Clock have ads?

Both Cool Penguin Clock and Custom Digital Clock show ads.

### Which is updated more often, Cool Penguin Clock or Custom Digital Clock?

Cool Penguin Clock ships an update every 3 weeks, and Custom Digital Clock every 9 months. Most recently, Cool Penguin Clock was updated on September 11, 2026 and Custom Digital Clock on September 14, 2026.

---

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