Comparison

World Clock vs GMT Time

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

Head to head
About

World Clock

Easily calculate time differences worldwide by scrolling a dynamic time bar. Add any city, set specific dates and times, and plan international meetings or calls effortlessly. The app syncs with iOS time data.

Highlights
  • Dynamic time bar for instant difference calculation
  • Add and manage multiple cities
  • Direct date and time specification
  • Customizable city names
  • Syncs with iOS time data
Features
Read full description

"World Clock" is the best app to calculate time differences all over the world. All cities' times change automatically just by scrolling it with your finger. Therefore, you don't need to add or subtract times any more to calculate time differences. ■■Features■■ -Scrolling the time bar on the side of the screen up and down simultaneously changes the time in each city to the future or past. -Double-tap the time bar to change the time unit between 1 minute and 1 hour. -You can add any city from the list of cities provided in the app. -Tap each city to specify the date and time directly. -Press and hold on a city to change the city and edit the custom name. -Only one fixed city can be displayed at the top of the screen. ■■Examples of use■■ -International meeting planner -International call -Trip planning Disclaimer:This application has been built with extreme care and attention. However, it does not guarantee the accuracy of the names and times of the cities displayed. Please note that we are not liable whatsoever for any profit loss, or any other form of loss experienced by the customer from using this application. ※We don't have any time difference data in our app. We have been inquiring about time differences of each city to iOS. Therefore, “World Clock” shows you the time of iOS. As a result, depending on the version of iOS you are using, the exact time may not be displayed. If you find a time lag in our app, please confirm default "Clock" app on your iPhone. If the time in "Clock" app is the same with the time in our “World Clock”, it means that our app is running normally. ※Abbreviated name of time zone was originally researched and added. If you notice any mistakes, please contact us from the support site. ※The screenshots are specially edited not to show ads.

About

GMT Time

This app provides accurate GMT time using NTP protocol and TrueTime framework. It offers a timekeeping function, allows setting time between two locations for itineraries, and supports multiple languages. Enjoy precise timekeeping with 1/100 second accuracy.

Highlights
  • Accurate GMT time display
  • NTP and TrueTime framework integration
  • Timekeeping function (on/off)
  • Set time between two locations
  • Multi-language support (English, Japanese, Chinese, Cantonese)
  • 1/100 second accuracy
Features
Read full description

Based on NTP (Network Time Protocol) protocol and TrueTime framework Get the correct GMT time anytime, anywhere on your mobile phone for free • Timekeeping function that can be turned on and off at any time • Set time between two places to facilitate business and travel itineraries • Provide timekeeping in English Japanese ,Chinese and Cantonese • NTP+ network delay calibration with 1/100 second accuracy

Screenshots

World Clock4 screens
GMT Time4 screens

Verdict

The call

The clearest difference is rating: GMT Time at 4.7 against World Clock's 3.9. GMT Time also leads on in-app purchases (none vs 1). On price, ratings volume, ads and monetization model 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. World Clock sells 1 one-off in-app purchase. GMT Time asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GMT Time holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 14 and 37 respectively.

Scorecard2 real differences · 8 level
World Clock versus GMT Time: the parameters behind the verdict, then further details
ParameterWorld ClockGMT Time
PriceFreeFree
Rating3.9 (14 ratings)4.7 (37 ratings) — better
Positive reviews77.4% of reviews—
Number of ratings1437 — better
Update frequencyEvery 6 weeks—
AdsYesYes
In-app purchasesYesNo — better
MonetizationAd-supportedAd-supported
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.614.0 — better
Further details — not scored
Size6 MB10 MB
Age rating4+4+
DeveloperYuki FukuiMingChun Chien

Customer experience

World Clock

All ratings13 ratings
Positive76.9%
Neutral0.0%
Negative23.1%
Written reviews62 reviews
Positive77.4%
Neutral6.5%
Negative16.1%

GMT Time

All ratings37 ratings
Positive89.2%
Neutral8.1%
Negative2.7%

In-app purchases

1 purchases

World Clock

One-time1
  • Remove Advertisement$1.99
None

GMT Time

No in-app purchases

Questions

Is World Clock free?
World Clock is free to download, with in-app purchases available.
Is GMT Time free?
GMT Time is free to download, with no in-app purchases.
Which has better reviews, World Clock or GMT Time?
GMT Time is rated higher. World Clock averages 3.9 out of 5 from 14 ratings, while GMT Time averages 4.7 from 37 ratings.
Do World Clock or GMT Time have ads?
Both World Clock and GMT Time show ads.

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