Comparison

OneHandClock (Pro version) vs Sun Moon Day

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

Head to head
About

OneHandClock (Pro version)

Experience a minimalist approach to timekeeping with a single-needle clock. Customize backgrounds, dial characters, and clock placement to create a unique visual timepiece. Enjoy both 24-hour and 12-hour formats with optional second-hand functionality.

Highlights
  • Single-needle clock design
  • 24-hour and 12-hour formats
  • Customizable clock position and size
  • Background image or camera feed
  • Customizable dial characters
  • Optional second hand
Features
Read full description

This is a one needle clock. Let's feel the passage of calm time. It is also compatible with iPad. - One-stitch clock   -> 24-hour clock.     The day-time is an upper half and the night-time is a lower half.   -> 12-hour clock.   -> The smallest scale division is 10 minutes. - Three-stitch clock   - > The second hand is a clock which gains smoothly. - You can change the position and size of the clock. - You can choose a camera image or a photo as the background of the clock. - Please write a favorite character in a dial and make it your clock. - If it puts sideways, a status bar will not be displayed. - When continuing displaying in "Auto sleep"-off, we recommend you to connect with a power supply. There is also a free version of the one-hand clock with the same functions.

About

Sun Moon Day

Features
Read full description

Sun Moon Day displays a real-time 24-hour sun clock and a 365-day seasonal clock, showing you exactly where you are in the day and year at a glance. Features: • 24-hour clock showing sunrise, sunset, and current sun position • Day/night visualization with real-time sky color transitions • 365-day orbit clock showing Earth's position and current season • Moon phase display with moonrise and moonset times • Optional NOAA weather display (US locations) • Support for multiple cities worldwide • Dark mode and daylight-adaptive backgrounds Sun Moon Day gives you an intuitive, visual sense of time — connecting you to the natural rhythms of the sun, moon, and seasons.

Screenshots

OneHandClock (Pro version)4 screens
Sun Moon Day4 screens

Verdict

The call

The clearest difference is price: Sun Moon Day at Free against OneHandClock (Pro version)'s $1.99. Sun Moon Day also leads on update cadence (weekly vs every 6 weeks). On ads, in-app purchases, 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

Sun Moon Day is free to download; OneHandClock (Pro version) costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OneHandClock (Pro version) ships an update every 6 weeks, Sun Moon Day weekly. The most recent releases landed on September 21, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 8 level
OneHandClock (Pro version) versus Sun Moon Day: the parameters behind the verdict, then further details
ParameterOneHandClock (Pro version)Sun Moon Day
Price$1.99Free — better
Rating5.0 (2 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings2 — better—
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size8 MB3 MB
Age rating4+4+
DeveloperKeietsu YasuharaJoseph Orr

In-app purchases

None

OneHandClock (Pro version)

No in-app purchases

None

Sun Moon Day

No in-app purchases

Questions

Is OneHandClock (Pro version) free?
OneHandClock (Pro version) costs $1.99, with no in-app purchases.
Is Sun Moon Day free?
Sun Moon Day is free to download, with no in-app purchases.
Do OneHandClock (Pro version) or Sun Moon Day have ads?
Neither OneHandClock (Pro version) nor Sun Moon Day shows ads.
Which is updated more often, OneHandClock (Pro version) or Sun Moon Day?
OneHandClock (Pro version) ships an update every 6 weeks, and Sun Moon Day weekly. Most recently, OneHandClock (Pro version) was updated on September 21, 2026 and Sun Moon Day on September 27, 2026.

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