# One Kanji Clock vs Eternal Clock

The clearest difference is in-app purchases: Eternal Clock at none against One Kanji Clock's 1. Eternal Clock also leads on ads (none vs shown) and update cadence (weekly vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. One Kanji Clock sells 1 one-off in-app purchase. Eternal Clock asks for nothing beyond the download.

One Kanji Clock ships an update every 2 months, Eternal Clock weekly. The most recent releases landed on October 30, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | One Kanji Clock | Eternal Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eternal-clock/id6752602424/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 18 MB | 23 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [Daehyeon Shin](https://appshunter.io/developer/1698890567) |

## What reviewers say

### One Kanji Clock

[App page](https://appshunter.io/ios/app/one-kanji-clock/id6468893847)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Kanji Clock with no ads | $2.99 | one-time |


### Eternal Clock

[App page](https://appshunter.io/ios/app/eternal-clock/id6752602424)

A minimalist digital clock that displays the time with no distractions. It offers a clean interface with subtle visual cues like a sun, moon, or mealtime hints, all without ads, data collection, or notifications.

**Highlights:** Ad-free experience, No data collection, No push notifications, Minimalist interface, Subtle visual cues (sun, moon, food), No settings or permissions required

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

**In-app purchases:** none


## Frequently asked questions

### Is One Kanji Clock free?

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

### Is Eternal Clock free?

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

### Do One Kanji Clock or Eternal Clock have ads?

One Kanji Clock shows ads; Eternal Clock does not.

### Which is updated more often, One Kanji Clock or Eternal Clock?

One Kanji Clock ships an update every 2 months, and Eternal Clock weekly. Most recently, One Kanji Clock was updated on October 30, 2026 and Eternal Clock on October 21, 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.*