Comparison

Mugen Clock vs SFClock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mugen Clock

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
Read full description

Looking for a clock that is easy to read? Mugen Clock fills the screen with large numbers and beautiful, vivid colors to make the time easy to see. It brings together the features you expect from a clock app, including a kitchen timer and stopwatch, in a simple design. And it offers more than readability. You can customize it in many ways to make it your own. For example, you can show or hide the weather, temperature, date, day of the week, and seconds, and control the screen orientation. You can also set a favorite photo as the background or display a live camera view with stylish effects. Carefully selected color themes can completely change the look and feel. The combinations are endless. You can save the clocks you create, too. Switching between saved clocks to suit your needs or your mood is easy. It does more than show the time: a simple, easy-to-use timer is also built in. Keep it nearby while studying, cooking, or exercising. The ways to use it are endless, too. Make this clock part of your everyday life.

About

SFClock

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
Read full description

SFClock is a simple flip clock and calendar App. Flip clock and calendar are displayed in portrait, and only clock in landscape. You can change 12/24 hours and seconds display of clock. You also can move month in calendar with the arrows, and back to current month by tapping the month title. There are many color themes, and you can choose a light or dark one to use.

Screenshots

Mugen Clock4 screens
SFClock4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Mugen Clock versus SFClock: the parameters behind the verdict, then further details
ParameterMugen ClockSFClock
PriceFreeFree
Rating4.5 (63 ratings)4.5 (4 ratings)
Positive reviews95.5% of reviews — better33.3% of reviews
Number of ratings63 — better4
Update frequencyEvery 9 days — betterEvery 5 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, Vision Pro — better
Requires iOS17.017.0
Further details — not scored
Size116 MB0 MB
Age rating4+4+
DeveloperKoichiro KamadaYafei Dong

Customer experience

Mugen Clock

All ratings63 ratings
Positive85.7%
Neutral11.1%
Negative3.2%
Written reviews22 reviews
Positive95.5%
Neutral4.5%
Negative0.0%

SFClock

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral66.7%
Negative0.0%

In-app purchases

1 purchases

Mugen Clock

One-time1
  • Premium$5.99
None

SFClock

No in-app purchases

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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