# Mugen Clock vs SFClock

Mugen Clock and SFClock both sit at 4.5 stars, but that hides the real split: 95% of Mugen Clock's written reviews are positive against 33% of SFClock's. Mugen Clock also leads on update cadence (every 9 days vs every 5 months) and ratings volume (63 vs 4). SFClock's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, rating, device support and iOS requirement there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.5 for Mugen Clock against 4.5 for SFClock. 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. Written reviews are what separate them: 95% of Mugen Clock's written reviews are positive against 33% of SFClock's.

Mugen Clock ships an update every 9 days, SFClock every 5 months. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Mugen Clock | SFClock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (63 ratings)](https://appshunter.io/ios/app/mugen-clock/id1064833509/reviews) | [4.5 (4 ratings)](https://appshunter.io/ios/app/sfclock/id1627863783/reviews) |
| Number of ratings | **63** | 4 |
| Positive reviews | **95.5% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 116 MB | 0 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Koichiro Kamada](https://appshunter.io/developer/476534292) | [Yafei Dong](https://appshunter.io/developer/1562436731) |

## What reviewers say

### 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 |


### SFClock

[App page](https://appshunter.io/ios/app/sfclock/id1627863783)

This utility app displays a flip clock and calendar. It offers customizable clock settings like 12/24 hour format and seconds display. Users can navigate the calendar and choose from various light and dark color themes.

**Highlights:** Flip clock display, Calendar view, 12/24 hour format, Seconds display toggle, Calendar month navigation, Color themes, Light/dark mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mugen Clock free?

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

### Is SFClock free?

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

### Which has better reviews, Mugen Clock or SFClock?

Mugen Clock and SFClock are both rated 4.5 out of 5 on the App Store, from 63 and 4 ratings respectively.

### Do Mugen Clock or SFClock have ads?

Mugen Clock shows ads; SFClock does not.

### Which is updated more often, Mugen Clock or SFClock?

Mugen Clock ships an update every 9 days, and SFClock every 5 months. Most recently, Mugen Clock was updated on September 24, 2026 and SFClock on September 14, 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.*