# ロック画面メモ vs Mugen Clock

The clearest difference is review sentiment: Mugen Clock at 96% against ロック画面メモ's 41%. Mugen Clock also leads on rating (4.5 vs 3.5) and update cadence (every 9 days vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. ロック画面メモ sells 3 one-off in-app purchases and Mugen Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mugen Clock holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: Mugen Clock has 65 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 41% of ロック画面メモ's written reviews are positive against 96% of Mugen Clock's.

ロック画面メモ ships an update every 4 months, Mugen Clock every 9 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | ロック画面メモ | Mugen Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/id896419388/reviews) | **[4.5 (65 ratings)](https://appshunter.io/ios/app/mugen-clock/id1064833509/reviews)** |
| Number of ratings | 2 | **65** |
| Positive reviews | 41.1% of reviews | **95.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 63 MB | 116 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Suzuki Creative](https://appshunter.io/developer/404832413) | [Koichiro Kamada](https://appshunter.io/developer/476534292) |

## What reviewers say

### ロック画面メモ

[App page](https://appshunter.io/ios/app/id896419388)

Create custom wallpapers for your lock screen by overlaying notes onto your favorite photos. Ideal for those who need constant reminders or want to visualize their goals.

**Highlights:** Overlay notes on custom images, Extensive background image samples, Live preview editing, Save notes to lock screen wallpaper

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $1.99 | one-time |
| 複数メモ機能 | $2.99 | one-time |
| メモ履歴 | $3.99 | one-time |


### 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 ロック画面メモ free?

ロック画面メモ 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, ロック画面メモ or Mugen Clock?

Mugen Clock is rated higher. ロック画面メモ averages 3.5 out of 5 from 2 ratings, while Mugen Clock averages 4.5 from 65 ratings.

### Do ロック画面メモ or Mugen Clock have ads?

Both ロック画面メモ and Mugen Clock show ads.

### Which is updated more often, ロック画面メモ or Mugen Clock?

ロック画面メモ ships an update every 4 months, and Mugen Clock every 9 days. Most recently, ロック画面メモ was updated on October 29, 2026 and Mugen Clock on October 29, 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.*