# SignalClock vs Zen Quotes Clock

The clearest difference is price: Zen Quotes Clock at Free against SignalClock's $0.99. Zen Quotes Clock also leads on update cadence (every 5 weeks vs every 5 months). SignalClock's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Zen Quotes Clock is free to download; SignalClock costs $0.99 up front. Zen Quotes Clock sells 1 one-off in-app purchase. SignalClock asks for nothing beyond the download.

SignalClock ships an update every 5 months, Zen Quotes Clock every 5 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SignalClock | Zen Quotes Clock |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Size | 103 MB | 26 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masafumi Endoh](https://appshunter.io/developer/757354996) | [Mihoko Araki](https://appshunter.io/developer/1476136915) |

## What reviewers say

### SignalClock

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Zen Quotes Clock

[App page](https://appshunter.io/ios/app/zen-quotes-clock/id6451078454)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Quotes Clock with no ads | $2.99 | one-time |


## Frequently asked questions

### Is SignalClock free?

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

### Is Zen Quotes Clock free?

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

### Do SignalClock or Zen Quotes Clock have ads?

Zen Quotes Clock shows ads; SignalClock does not.

### Which is updated more often, SignalClock or Zen Quotes Clock?

SignalClock ships an update every 5 months, and Zen Quotes Clock every 5 weeks. Most recently, SignalClock was updated on October 26, 2026 and Zen Quotes Clock on October 24, 2026.

---

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