Comparison

ecoClock vs OneHandClock

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

Head to head
About

ecoClock

This app offers a suite of essential tools for daily life, including world clocks, alarms, timers, and a stopwatch. It also provides simple utilities like a compass, spirit level, and calculator, with customizable wallpaper options.

Highlights
  • World date and clock display
  • Customizable alarms and timers
  • Stopwatch with 1/100 sec precision
  • Simple utility tools (compass, spirit level, calculator)
  • Adjustable screen brightness timer
  • Customizable wallpaper
  • Battery status display
Features
Read full description

It is an application which is helpful by the date and clock display corresponding to world each language, alarm, timer, stopwatch, event list display, the status display of a battery, the simple tool (compass, a spirit level, LED lighting, and calculator) that can be risen immediately, and various functions. It is possible to change wallpaper freely. Basically, operation and a display of a tool -- a single tap or swipe, and setup of a tool -- the double-tap. The function is embedded in various places. Please use it, enjoying yourself. [Date] The world's languages can be displayed in format For more information or simple display can be switched [Clock] Display selection of digital or analog clock is possible. Display switching function AM / PM or 24 hour [Brightness Timer] You can drop to the lowest brightness of the LCD backlight does not perform the specified time input, operations such as search. That suppress the consumption of the battery even if you do not attempt to auto-lock setting screen starting 
ON / OFF with a single tap, config with a double tap. You can revert to the standard brightness by sensing the shake of the body also. [Auto Lock Timer] You can delay the time you are free to specify automatic locking of the Setting. (Up to 60 minutes) You can reset the lock automatic timer senses the shaking of the body also start setting screen ON / OFF, with a double tap with a single tap. [Wallpaper] You can save a photo as wallpaper on the spot and took photos in the Photo Library. (Please set in the double-tap when you first start because it is not save the wallpaper.) You can hide the tool icon temporarily. (Double-click the center of the screen) [Alarm] You can set alarms for up to three. (Switch by swiping to the right) Alarms can be set only on specified days of the week every week. (Start screen, configured with double tap) Snooze function.(Interval from 5 to 60 minutes) Snooze function will continue until you stop the alarm.(Up to 12 times in the back ground) Three types of alarm sound can be selected, at the same time vibration can be set (only iPhone) [Timer] You can set the timer for up to three. (Switch by swiping to the left) Three types of alarm sound can be selected. (Start screen, configured with double tap) [Stopwatch] Can be measured up to 1/100 sec. Swipe reset the start / stop, right at the single-tap [Display of battery status] Display of battery power remaining, the display during charging is possible. [View schedule] Calendar Schedule of iOS (90 days maximum) will be listed for the specified period from the date or the current time. [Calculator] Undo / redo functionality and memory of up to three Tax rate calculation function (when you first start, please enter the tax rate.) Calculation results can be copied to the clipboard. [Compass](later iPhone3G, and iPad) Switchable (compass pointed north) magnetic north, true north (north exact) Horizontal instrument that can be measured with respect to a variety of device Both instruments can be calibrated compass horizontal. (Measurement function relative data) [Lighting LED] (later iPhone4) LED lighting that can be used immediately launched Lock mode can be switched or switch lights only while you hold it down. Almost features are available free of charge. However, the advertisement indication may not expect an economy in power consumption effect to use a network and local information frequently. Please pay the fee In-App Purchase, if you like this app. You can add many design and hide the ads.

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.

Screenshots

ecoClock4 screens
OneHandClock4 screens

Verdict

The call

The clearest difference is rating: OneHandClock at 4.6 against ecoClock's 4.0. OneHandClock also leads on in-app purchases (none vs 3) and review sentiment (86% vs 56%). ecoClock's advantage is update cadence (every 3 months vs every 26 months) and iOS requirement (8.0 vs 15.0). On price, ads 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

Both are free to download. ecoClock sells 3 one-off in-app purchases. OneHandClock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OneHandClock holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: OneHandClock has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 56% of ecoClock's written reviews are positive against 86% of OneHandClock's.

UpkeepUpdate frequency

ecoClock ships an update every 3 months, OneHandClock every 26 months. The most recent releases landed on September 8, 2026 and August 17, 2026 respectively.

Scorecard7 real differences · 3 level
ecoClock versus OneHandClock: the parameters behind the verdict, then further details
ParameterecoClockOneHandClock
PriceFreeFree
Rating4.0 (1 ratings)4.6 (5 ratings) — better
Positive reviews56.3% of reviews85.7% of reviews — better
Number of ratings15 — better
Update frequencyEvery 3 months — betterEvery 26 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size29 MB8 MB
Age rating4+4+
DeveloperAtsuhiko TanakaKeietsu Yasuhara

Customer experience

ecoClock

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews16 reviews
Positive56.3%
Neutral18.8%
Negative25.0%

OneHandClock

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

In-app purchases

3 purchases

ecoClock

One-time3
  • iPhone version$5.99
  • iPad version$8.99
  • Full version$11.99
None

OneHandClock

No in-app purchases

Questions

Is ecoClock free?
ecoClock is free to download, with in-app purchases available.
Is OneHandClock free?
OneHandClock is free to download, with no in-app purchases.
Which has better reviews, ecoClock or OneHandClock?
OneHandClock is rated higher. ecoClock averages 4.0 out of 5 from 1 ratings, while OneHandClock averages 4.6 from 5 ratings.
Do ecoClock or OneHandClock have ads?
Both ecoClock and OneHandClock show ads.
Which is updated more often, ecoClock or OneHandClock?
ecoClock ships an update every 3 months, and OneHandClock every 26 months. Most recently, ecoClock was updated on September 8, 2026 and OneHandClock on August 17, 2026.

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