Comparison

World Clock vs Horista

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

Horista

Easily coordinate across different time zones with a visual planner. Compare cities, find optimal meeting times, and account for daylight saving and holidays. Ideal for remote teams, travelers, and staying connected globally.

Highlights
  • Synchronized timelines across multiple time zones
  • Color-coded guidance for optimal meeting times
  • Interactive world map with selectable time zones
  • Daylight saving and holiday support
  • Offline access to cities and holiday data
  • Calendar event integration
  • Home screen widgets
Features
Read full description

Horista helps you coordinate across time zones with clarity. Compare cities side by side, find the best time for everyone, and avoid mistakes caused by daylight saving changes, holidays, or late-night meetings. Whether you work with remote teams, travel internationally, or keep in touch with friends and family around the world, Horista makes global time easier to understand at a glance. FEATURES • Scroll synchronized timelines across multiple time zones • Color guidance to quickly identify good meeting times • Interactive world map with selectable time zone regions • Built-in daylight saving and holiday support • Offline support with cities and holiday data included • Add calendar events without reading your calendar • Privacy-focused contact location selection • Widgets for quick access from your Home Screen • Sync across iPhone, iPad, Mac, Apple Watch, and iCloud Designed to make global coordination feel simple, visual, and effortless. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.privacypolicies.com/live/5d241634-18c1-415d-9e83-da66bd6b4027

Screenshots

World Clock4 screens
Horista4 screens

Verdict

The call

The clearest difference is rating: Horista at 5.0 against World Clock's 3.9. Horista also leads on ads (none vs shown) and update cadence (daily vs every 6 weeks). World Clock's advantage is monetization model (ad-supported vs freemium) and ratings volume (14 vs 2). On price 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. World Clock sells 1 one-off in-app purchase and Horista sells 3 in-app purchases, starting at $2.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Horista holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: World Clock has 14 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

World Clock ships an update every 6 weeks, Horista daily. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 3 level
World Clock versus Horista: the parameters behind the verdict, then further details
ParameterWorld ClockHorista
PriceFreeFree
Rating3.9 (14 ratings)5.0 (2 ratings) — better
Positive reviews77.4% of reviews—
Number of ratings14 — better2
Update frequencyEvery 6 weeksDaily — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationAd-supported — betterFreemium
DevicesiPhone, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS15.0 — better17.0
Further details — not scored
Size6 MB68 MB
Age rating4+4+
DeveloperYuki FukuiDidier Burton

Customer experience

World Clock

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

Horista

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

World Clock

One-time1
  • Remove Advertisement$1.99
3 purchases

Horista

Subscriptions2
  • Horista Premium – Monthly$2.491 Month
  • Horista Premium – Yearly7 Days trial$19.991 Year
One-time1
  • Horista Lifetime$49.99

Questions

Is World Clock free?
World Clock is free to download, with in-app purchases available.
Is Horista free?
Horista is free to download, with in-app purchases available.
Which has better reviews, World Clock or Horista?
Horista is rated higher. World Clock averages 3.9 out of 5 from 14 ratings, while Horista averages 5.0 from 2 ratings.
Do World Clock or Horista have ads?
World Clock shows ads; Horista does not.
Which is updated more often, World Clock or Horista?
World Clock ships an update every 6 weeks, and Horista daily. Most recently, World Clock was updated on October 26, 2026 and Horista on October 20, 2026.

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