Comparison

Onetime. vs World Clock. Time Widget

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

Head to head
About

Onetime.

Visualize multiple world time zones on a single, intuitive dial. This app simplifies international scheduling and communication by displaying cities as they move through day and night, automatically handling daylight saving changes. Effortlessly find the perfect time for calls or to connect with loved ones globally.

Highlights
  • Single, easy-to-read time zone dial
  • Visualizes cities moving through day and night
  • Automatic daylight saving time adjustments
  • Timetravel™ feature for scheduling
  • Shareable time invites
Features
Read full description

One world. Onetime. Finally, a world clock that integrates all time zones into one easy-to-read dial. We are all living and working globally more and more, so we needed a way to simply see the time in cities around the world at a glance. That’s how Onetime was born. Built on the metaphor of the earth’s rotation, Onetime displays all the cities that matter to you as they move through the day and night in a natural, clockwise direction referencing the international date line. Whether you are scheduling an international call or checking to see what time it is back home, Onetime is the clock for you. No more mistakes adding and subtracting hours, no more confusing GMT numbers, no more remembering daylight savings calendars. Onetime takes care of it all, automatically. And with Timetravel™, you can fly through time so that you quickly find the right moment to schedule that important teleconference with your international colleagues or catch your loved ones before their bedtimes. The „Share“ feature lets you choose a date with TimeTravel and send an invite via message or email. Give up your wall of newsroom clocks and switch to Onetime today. Onetime. By FLUID. ABOUT FLUID Onetime was created by the award-winning design firm FLUID. With our locations in Munich and Silicon Valley and our international client base, the FLUID team is a heavy Onetime user, too.

About

World Clock. Time Widget

This app offers a world clock with a time calculator and customizable widgets for your home screen. It allows you to track time in over 30,000 cities, even offline, and rename locations for easy identification. The clean interface ensures fast navigation and a straightforward user experience.

Highlights
  • 30,000+ cities
  • Offline functionality
  • Multiple home screen widgets
  • Time converter
  • Rename places
Features
Read full description

Our World Clock + Widgets goes beyond similar apps and iOS Clock App with the addition of a widget and the easy-to-use time calculator. It has a clean design that is straightforward for fast navigation. The app is free to download and has every option that makes it the perfect world clock. Features: • Choose from 30k cities • Use offline functionality • Add multiple Widgets on Home Screen • Adjust time with Time Converter • Rename your places Please note the subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period By using World Clock, you are agreeing to our Privacy Policy and Terms of Use: Private Policy http://getsfaxapp.com/privacy.html Terms of Use http://getfaxapp.com/terms.html Payment will be charged to iTunes Account at confirmation of purchase • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable

Screenshots

Onetime.4 screens
World Clock. Time Widget4 screens

Verdict

The call

The clearest difference is rating: World Clock. Time Widget at 4.7 against Onetime.'s 3.5. World Clock. Time Widget also leads on ratings volume (4.3K vs 39) and update cadence (every 3 months vs every 11 months). Onetime.'s advantage is in-app purchases (none vs 3). On price, ads, 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

Both are free to download. World Clock. Time Widget sells 3 in-app purchases, starting at $1.99 per month. Onetime. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

World Clock. Time Widget holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: World Clock. Time Widget has 4.3K ratings behind it against 39, so its average is the more settled of the two. Written reviews point the same way: 51% of Onetime.'s written reviews are positive against 64% of World Clock. Time Widget's.

UpkeepUpdate frequency

Onetime. ships an update every 11 months, World Clock. Time Widget every 3 months. The most recent releases landed on September 17, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 4 level
Onetime. versus World Clock. Time Widget: the parameters behind the verdict, then further details
ParameterOnetime.World Clock. Time Widget
PriceFreeFree
Rating3.5 (39 ratings)4.7 (4.3K ratings) — better
Positive reviews51.5% of reviews63.9% of reviews — better
Number of ratings394.3K — better
Update frequencyEvery 11 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size2 MB33 MB
Age rating4+4+
DeveloperFLUID Design GmbH7270356 Canada Inc

Customer experience

Onetime.

All ratings39 ratings
Positive59.0%
Neutral2.6%
Negative38.5%
Written reviews134 reviews
Positive51.5%
Neutral5.2%
Negative43.3%

World Clock. Time Widget

All ratings4,319 ratings
Positive92.2%
Neutral3.4%
Negative4.4%
Written reviews155 reviews
Positive63.9%
Neutral8.4%
Negative27.7%

User reviews

Onetime.

From 39 App Store ratings

What we love

  • ✨ Beautiful and elegant design
  • 👍 Intuitive and easy to use interface
  • 🌍 Great for visualizing time differences
  • 💡 Unique and innovative visualization
  • ✅ Works well for scheduling

Room to improve

  • 🐛 Data quality issues (incorrect times)
  • 🐛 Inability to add cities
  • 🐛 App crashes or freezes
  • 🐛 City search not working
  • 🐛 Some cities not recognized

World Clock. Time Widget

From 4.3K App Store ratings

What we love

  • 💻 Simple and easy to use
  • 🌍 Helpful for tracking time zones
  • 🕰️ Straightforward interface
  • 📊 Useful for international meetings
  • 🔍 Comprehensive city database

Room to improve

  • 🐛 Bugs and glitches in widget
  • 🔍 Missing some major cities
  • 🔒 Paid features behind paywall
  • 🔄 Difficulty reordering locations
  • 🕰️ Limited time display options

Bugs and requests

Onetime.

Reported bugs

8 issues
  • Incorrect time zone data for some cities (e.g., Taipei, São Paulo)
  • App freezes when trying to add cities
  • City search function not working ('No cities found')
  • App crashes on launch after updates
  • Time travel feature stops working with certain cities
Show 3 more
  • Scrolling back and forth in time no longer possible
  • App not working with latest iOS versions
  • Default 'My Time' zone cannot be removed

Requested features

9 requests
  • Ability to add descriptive labels for cities
  • Ability to add GMT/UTC time
  • Ability to add time zones manually
  • Homescreen widgets
  • Ability to toggle cities instead of removing
Show 4 more
  • iPad version
  • Tutorial on first launch
  • Option to reverse view horizontally
  • Ability to search future dates

World Clock. Time Widget

Reported bugs

5 issues
  • Widget not loading correctly
  • Time zone display issues
  • Search function not working
  • Compatibility problems on iOS 16
  • Inconsistent date/day display

Requested features

5 requests
  • Add analog clock option
  • Ability to display seconds
  • More customization options
  • Improved widget functionality
  • Granular time zone selection

In-app purchases

None

Onetime.

No in-app purchases

3 purchases

World Clock. Time Widget

Subscriptions2
  • World Clock. Widget. Monthly$1.991 Month
  • World Clock. Widget. Annually1 Month trial$15.991 Year
One-time1
  • Remove Ads$5.99

Questions

Is Onetime. free?
Onetime. is free to download, with no in-app purchases.
Is World Clock. Time Widget free?
World Clock. Time Widget is free to download, with in-app purchases available.
Which has better reviews, Onetime. or World Clock. Time Widget?
World Clock. Time Widget is rated higher. Onetime. averages 3.5 out of 5 from 39 ratings, while World Clock. Time Widget averages 4.7 from 4.3K ratings.
Do Onetime. or World Clock. Time Widget have ads?
Neither Onetime. nor World Clock. Time Widget shows ads.
Which is updated more often, Onetime. or World Clock. Time Widget?
Onetime. ships an update every 11 months, and World Clock. Time Widget every 3 months. Most recently, Onetime. was updated on September 17, 2026 and World Clock. Time Widget on September 24, 2026.

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