Comparison

World Clock vs World Time Shifter Clock

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 without manual calculations. The app syncs with iOS time data.

Highlights
  • Dynamic scrolling time bar
  • Add and manage cities
  • Direct date and time specification
  • Customizable city names
  • Time unit adjustment (minute/hour)
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

World Time Shifter Clock

This app helps you manage time across different time zones for global coordination. Easily plan meetings, stay connected with loved ones, and track events worldwide. Its intuitive display and time-shifting feature make it simple to understand and use.

Highlights
  • Intuitive world clock display
  • Time shifting for time zone comparison
  • Meeting scheduling across time zones
  • Travel time forecasting
  • Event reminders and notifications
Features
Read full description

Coordinate with anyone, any time, anywhere, around the world with this unique and intuitive world clock. SYNC TEAMS - schedule overlap feature makes it easy to see when everyone's schedule coincides. KEEP IN TOUCH - Stay connected to family around the globe - know when it's the best time to call your relatives in another time zone. GREAT FOR TRAVEL - Plan your travel - use it to forecast your landing time after a long flight thru multiple time zones. GLOBAL SPORTS MATCHES - Don't miss the opening kick-off of the match in Manchester. TRADING MARKETS - Stay on top of the financial markets around the world. Features • Unique Intuitive Display - Super easy to see the times around the world • Time Shifting: Rotate the clock forwards or backwards to see time changes. • Large Widget - see the full clock face right on your home screen. • Schedule Overlap - see hours of overlap for schedules in one or more locations. • Reminders: Creates notifications for any time, any place.

Screenshots

World Clock4 screens
World Time Shifter Clock4 screens

Verdict

The call

The clearest difference is rating: World Time Shifter Clock at 4.4 against World Clock's 3.9. World Time Shifter Clock also leads on review sentiment (100% vs 77%) and ratings volume (98 vs 14). World Clock's advantage is iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

World Time Shifter Clock holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: World Time Shifter Clock has 98 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 77% of World Clock's written reviews are positive against 100% of World Time Shifter Clock's.

UpkeepUpdate frequency

World Clock ships an update every 6 weeks, World Time Shifter Clock every 3 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
World Clock versus World Time Shifter Clock: the parameters behind the verdict, then further details
ParameterWorld ClockWorld Time Shifter Clock
PriceFreeFree
Rating3.9 (14 ratings)4.4 (98 ratings) — better
Positive reviews77.4% of reviews100.0% of reviews — better
Number of ratings1498 — better
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size6 MB23 MB
Age rating4+4+
DeveloperYuki FukuiDavid Richmond

Customer experience

World Clock

All ratings14 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews62 reviews
Positive77.4%
Neutral6.5%
Negative16.1%

World Time Shifter Clock

All ratings98 ratings
Positive87.8%
Neutral3.1%
Negative9.2%
Written reviews17 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

World Clock

No in-app purchases

None

World Time Shifter Clock

No in-app purchases

Questions

Is World Clock free?
World Clock is free to download, with no in-app purchases.
Is World Time Shifter Clock free?
World Time Shifter Clock is free to download, with no in-app purchases.
Which has better reviews, World Clock or World Time Shifter Clock?
World Time Shifter Clock is rated higher. World Clock averages 3.9 out of 5 from 14 ratings, while World Time Shifter Clock averages 4.4 from 98 ratings.
Do World Clock or World Time Shifter Clock have ads?
Both World Clock and World Time Shifter Clock show ads.
Which is updated more often, World Clock or World Time Shifter Clock?
World Clock ships an update every 6 weeks, and World Time Shifter Clock every 3 weeks. Most recently, World Clock was updated on November 1, 2026 and World Time Shifter Clock on November 3, 2026.

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