Comparison

OneHandClock vs Lucas' Clock

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

Head to head
About

OneHandClock

Experience a unique approach to timekeeping with a minimalist, single-hand clock. Customize backgrounds with your photos or camera, and choose between 12 or 24-hour formats with 10-minute increments. A three-hand option with a smooth second hand is also available.

Highlights
  • Single-hand clock display
  • 24-hour and 12-hour formats
  • 10-minute scale divisions
  • Optional second hand
  • Customizable clock position and size
  • Camera or photo backgrounds
  • Character customization on dial
Features
Read full description

This is a one needle clock. Let's feel the passage of calm time. - 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 a paid version "oneHandClock (Pro version)" that does not display advertisements.

About

Lucas' Clock

This app offers a unique approach to timekeeping by displaying only the hour hand, encouraging a more fluid perception of time. Its minimalist design ensures easy readability from a distance, with an option to briefly view the minute hand. It aims to improve your sense of time estimation.

Highlights
  • Clock without minute hand
  • Clean, minimal interface
  • Easy to read from a distance
  • Tap to show minute hand
  • Works on all orientations
  • 4 different colors
Features
Read full description

In today's hectic life it seems that everybody is living by the count of each minute. But do you really need such exact times as 3:03 p.m. or 10:39 a.m. in your everyday life? Wouldn’t ‘just after three’ be entirely sufficient? And 14:54 and 15:12 seem very different while it’s not. It makes you think too much about something that is fluid and paced and pushed along the same speed always: time.  Lucas’ Clock in short: # Clock without minute hand # Clean, minimal interface, easy to read at a glance from a distance # Tap to show minute hand for precise time reading (slowly disappears after 15 seconds, unless you tap again to make it disappear immediately) # Works on all orientations and screen sizes # No settings, No ads, No alarm # 4 different colors included (swipe left or right to change) This app makes time more real. Don’t think this is not precise enough, it takes a little getting used to. Ultimately your sense and estimation of time will improve. Perceiving time in this way comes actually from a historical perspective. Until the late eighteenth century tower clocks only had one hand, which showed the full hour. In fact, while measuring time was already important, the pace of life was definitely less frenetic compared to nowadays. Moreover, clocks had to be readable in the distance. With just one hand there was no risk to mix up hours and minute. This app follows just this design principle: it makes it easy to read at a glance from a distance. My grandfather Lucas made a beautiful clock. His clock was decorated with stars and the sun and only had one hand to indicate the hours. It inspired me to share this clock with you. Enjoy!

Screenshots

OneHandClock4 screens
Lucas' Clock2 screens

Verdict

The call

The clearest difference is price: OneHandClock at Free against Lucas' Clock's $0.99. Lucas' Clock's advantage is ads (none vs shown) and rating (5.0 vs 4.6). On ratings volume, in-app purchases and device support 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

OneHandClock is free to download; Lucas' Clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Lucas' Clock holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews point the same way: 86% of OneHandClock's written reviews are positive against 100% of Lucas' Clock's.

UpkeepUpdate frequency

OneHandClock ships an update every 26 months, Lucas' Clock every 5 months. The most recent releases landed on August 17, 2026 and August 13, 2026 respectively.

Scorecard7 real differences · 3 level
OneHandClock versus Lucas' Clock: the parameters behind the verdict, then further details
ParameterOneHandClockLucas' Clock
PriceFree — better$0.99
Rating4.6 (5 ratings)5.0 (4 ratings) — better
Positive reviews85.7% of reviews100.0% of reviews — better
Number of ratings5 — better4
Update frequencyEvery 26 monthsEvery 5 months — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size8 MB1 MB
Age rating4+4+
DeveloperKeietsu YasuharaThe RedHouse Apps

Customer experience

OneHandClock

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Lucas' Clock

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OneHandClock

No in-app purchases

None

Lucas' Clock

No in-app purchases

Questions

Is OneHandClock free?
OneHandClock is free to download, with no in-app purchases.
Is Lucas' Clock free?
Lucas' Clock costs $0.99, with no in-app purchases.
Which has better reviews, OneHandClock or Lucas' Clock?
Lucas' Clock is rated higher. OneHandClock averages 4.6 out of 5 from 5 ratings, while Lucas' Clock averages 5.0 from 4 ratings.
Do OneHandClock or Lucas' Clock have ads?
OneHandClock shows ads; Lucas' Clock does not.
Which is updated more often, OneHandClock or Lucas' Clock?
OneHandClock ships an update every 26 months, and Lucas' Clock every 5 months. Most recently, OneHandClock was updated on August 17, 2026 and Lucas' Clock on August 13, 2026.

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