# SignalClock vs Custom Digital Clock

The clearest difference is price: Custom Digital Clock at Free against SignalClock's $0.99. SignalClock's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.1). On update cadence, in-app purchases and device support there is nothing between them.

Custom Digital Clock is free to download; SignalClock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SignalClock ships an update every 5 months, Custom Digital Clock every 9 months. The most recent releases landed on September 9, 2026 and July 10, 2026 respectively.

## The numbers

| Metric | SignalClock | Custom Digital Clock |
| --- | --- | --- |
| Price | $0.99 | **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 | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 months** | Every 9 months |
| Monetization | — | Ad-supported |
| Size | 103 MB | 29 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masafumi Endoh](https://appshunter.io/developer/757354996) | [tadashi endo](https://appshunter.io/developer/1605441215) |

## What reviewers say

### SignalClock

[App page](https://appshunter.io/ios/app/signalclock/id757354993)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 SignalClock free?

SignalClock costs $0.99, with no in-app purchases.

### Is Custom Digital Clock free?

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

### Do SignalClock or Custom Digital Clock have ads?

Custom Digital Clock shows ads; SignalClock does not.

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

SignalClock ships an update every 5 months, and Custom Digital Clock every 9 months. Most recently, SignalClock was updated on September 9, 2026 and Custom Digital Clock on July 10, 2026.

---

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