# 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） vs Mugen Clock

The clearest difference is ads: 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） at none against Mugen Clock's shown. 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） also leads on iOS requirement (14.0 vs 17.0). Mugen Clock's advantage is ratings volume (63 vs 4). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） sells 3 in-app purchases, starting at $1.99 per month and Mugen Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） against 4.5 for Mugen Clock. That said, the two scores are not equally well evidenced: Mugen Clock has 63 ratings behind it against 4, so its average is the more settled of the two.

電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） ships an update fortnightly, Mugen Clock every 9 days. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） | Mugen Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/id1024396744/reviews) | [4.5 (63 ratings)](https://appshunter.io/ios/app/mugen-clock/id1064833509/reviews) |
| Number of ratings | 4 | **63** |
| Positive reviews | — | 95.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 63 MB | 116 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RIDE AND CONNECT,INC.](https://appshunter.io/developer/1024396743) | [Koichiro Kamada](https://appshunter.io/developer/476534292) |

## What reviewers say

### 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック）

[App page](https://appshunter.io/ios/app/id1024396744)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 自動着信拒否機能と広告非表示 - 1月 | $1.99 | per month |
| 自動着信拒否と広告非表示 - 6 月 | $12.99 | per 6 months |
| 自動着信拒否と広告非表示 - 1年 | $24.99 | per year |


### Mugen Clock

[App page](https://appshunter.io/ios/app/mugen-clock/id1064833509)

This app offers a highly readable clock with large, bold numbers that fill the screen. Customize colors, fonts, and layouts, and set personal photos or videos as backgrounds. Includes timer and stopwatch functions for added utility.

**Highlights:** Large, full-screen time display, Customizable colors and fonts, Photo and video backgrounds, Adjustable layout options, Integrated timer and stopwatch, Saved presets for different modes

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $5.99 | one-time |


## Frequently asked questions

### Is 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） free?

電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） is free to download, with in-app purchases available.

### Is Mugen Clock free?

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

### Which has better reviews, 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） or Mugen Clock?

電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） and Mugen Clock are both rated 4.5 out of 5 on the App Store, from 4 and 63 ratings respectively.

### Do 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） or Mugen Clock have ads?

Mugen Clock shows ads; 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） does not.

### Which is updated more often, 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） or Mugen Clock?

電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） ships an update fortnightly, and Mugen Clock every 9 days. Most recently, 電話帳ナビ－迷惑電話やメールを自動判定（迷惑電話ブロック） was updated on September 22, 2026 and Mugen Clock on September 24, 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.*