# Digital Japanese Clock vs 電卓

The clearest difference is in-app purchases: 電卓 at none against Digital Japanese Clock's 1. 電卓 also leads on ads (none vs shown) and update cadence (every 5 days vs every 6 weeks). Digital Japanese Clock's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price there is nothing between them.

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

Digital Japanese Clock ships an update every 6 weeks, 電卓 every 5 days. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Digital Japanese Clock | 電卓 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/digital-japanese-clock/id1665402709/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 1 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mihoko Araki](https://appshunter.io/developer/1476136915) | [eisuke yoshikawa](https://appshunter.io/developer/1894588067) |

## What reviewers say

### Digital Japanese Clock

[App page](https://appshunter.io/ios/app/digital-japanese-clock/id1665402709)

Experience the Edo period's unique timekeeping with this digital clock. It simulates the indefinite time method, dividing days and nights into variable lengths. Customize sounds, displays, and backgrounds for an immersive historical experience.

**Highlights:** Indefinite time method simulation, Customizable bell sounds (drums, cannons, cuckoo), Multiple display options (zodiac, numerals, emojis), Adjustable background color and font, Optional modern sub-clock display, Settings for time methods and display elements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $1.99 | one-time |


### 電卓

[App page](https://appshunter.io/ios/app/calcnote/id6762538775)

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

**In-app purchases:** none


## Frequently asked questions

### Is Digital Japanese Clock free?

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

### Is 電卓 free?

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

### Do Digital Japanese Clock or 電卓 have ads?

Digital Japanese Clock shows ads; 電卓 does not.

### Which is updated more often, Digital Japanese Clock or 電卓?

Digital Japanese Clock ships an update every 6 weeks, and 電卓 every 5 days. Most recently, Digital Japanese Clock was updated on October 17, 2026 and 電卓 on October 12, 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.*