Comparison

World Clock Pro vs Ops 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 Pro

Easily track and convert time across multiple global time zones. Schedule events, share accurate times instantly, and access a vast database of cities and time zones. Ideal for international communication and planning.

Highlights
  • Universal clock access
  • Effortless time conversion
  • Schedule calendar events
  • Instant time sharing
  • Large city and timezone database
  • Automatic timezone updates
Features
Read full description

TIMEZONE CALCULATOR – YOUR ULTIMATE WORLD TIME COMPANION Master global time with a tool that is clear, concise, and built for busy international lives. Whether you’re scheduling business meetings or connecting with friends overseas, World Clock Pro keeps you in sync—simply and directly. ESSENTIAL FEATURES UNIVERSAL CLOCK ACCESS: View accurate times in cities around the world—New York, London, Tokyo, Sydney. No fuss, just the facts. EFFORTLESS TIME CONVERSION: Swipe to convert and compare time zones with precision. Plan your calls and meetings with ease. SCHEDULE WITH CONFIDENCE: Create and integrate calendar events quickly. Organize trips, group activities, and international calls without confusion. INSTANT TIME SHARING: Share exact times via email, SMS, social media, or messengers. Coordination is just a click away. HUGE CITY & TIMEZONE DATABASE: Access over 160,000 cities and popular time zones like GMT, UTC, EST, and PST at your fingertips. WHY THIS APP MATTERS Say goodbye to timezone confusion. This isn’t just another world clock—it’s a powerful tool for global thinkers, frequent travelers, and anyone who values clear, reliable time data. Streamline your schedule and manage your day without delay. EXTEND YOUR EXPERIENCE For a deeper dive into global time management, World Clock Pro is also available on Mac. Just search “World Clock Pro” in the Mac AppStore * * * World Clock Pro offers a premium subscription: Subscribe to get access to unlimited timezones, and timely automatic updates of our timezone database of more than 160,000 locations and timezones. – Length of subscription: 1 month or 1 year – Payment will be charged to iTunes Account at confirmation of purchase – Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period – 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 – Terms & Conditions: https://timemaster.s3.amazonaws.com/Time-master-terms.pdf – Privacy Policy: https://timemaster.s3.amazonaws.com/Time-master-privacy-policy.pdf

About

Ops Clock

A versatile utility app offering a world clock with over 400 cities, unlimited timers, and three powerful calculators for time zone, time, and date arithmetic. It also features an event log to track real-time occurrences and elapsed times.

Highlights
  • World clock with 400+ cities
  • Unlimited count-up and countdown timers
  • Time zone, time, and date calculators
  • Event log with elapsed time tracking
  • Customizable labels and notifications
Features
Read full description

Professional grade clock and timer tool with four functions in one app: • World clock • Digital seconds display • Compact format • Over 400 cities • Set custom labels • Clocks sorted automatically • Unlimited number of timers • Count-up timers • Countdown timers • Wall clock timers • End-time notifications • Pre-notifications • Elapsed time and ETA in any zone • Three calculators • Time zone calculator helps plan multi-city conf calls • Time calculator for time arithmetic, including across different time zones • Date calculator for date arithmetic • Event Log • Stores a record of real-time events • Shows elapsed time between events This app is free, shows no advertisements, makes no use of the network and collects no personal information. Available in English, Spanish, French, Italian and Portuguese.

Screenshots

World Clock Pro4 screens
Ops Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: Ops Clock at none against World Clock Pro's 6. Ops Clock also leads on review sentiment (100% vs 77%). World Clock Pro's advantage is ratings volume (1.4K vs 11) and update cadence (every 2 months vs every 5 months). On price, rating, 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. World Clock Pro sells 5 in-app purchases, starting at $1.99 per month. Ops Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for World Clock Pro against 4.7 for Ops Clock. That said, the two scores are not equally well evidenced: World Clock Pro has 1.4K ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 77% of World Clock Pro's written reviews are positive against 100% of Ops Clock's.

UpkeepUpdate frequency

World Clock Pro ships an update every 2 months, Ops Clock every 5 months. The most recent releases landed on October 22, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
World Clock Pro versus Ops Clock: the parameters behind the verdict, then further details
ParameterWorld Clock ProOps Clock
PriceFreeFree
Rating4.8 (1.4K ratings) — better4.7 (11 ratings)
Positive reviews76.7% of reviews100.0% of reviews — better
Number of ratings1.4K — better11
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.0
Further details — not scored
Size41 MB2 MB
Age rating4+4+
DeveloperAlex Komarov Inc.James Kretchmar

Customer experience

World Clock Pro

All ratings1,349 ratings
Positive95.3%
Neutral1.9%
Negative2.8%
Written reviews206 reviews
Positive76.7%
Neutral4.9%
Negative18.4%

Ops Clock

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

World Clock Pro

Reported bugs

3 issues
  • Widget not working on iOS 14 and newer
  • Issues with local time zone detection and display
  • Inconsistent behavior after app updates

Requested features

4 requests
  • Add date function for future time zone changes
  • Ability to customize and sort displayed time zones
  • Implement an Apple Watch app
  • Improve widget functionality and customization

Ops Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

World Clock Pro

Subscriptions5
  • 1 month$1.991 Month
  • 1 month2 variants$2.991 Month
  • 1 year3 Days trial$9.991 Year
Show 2 more
  • 1 year3 Days trial$11.991 Year
  • 1 year3 Days trial$19.991 Year
None

Ops Clock

No in-app purchases

Questions

Is World Clock Pro free?
World Clock Pro is free to download, with in-app purchases available.
Is Ops Clock free?
Ops Clock is free to download, with no in-app purchases.
Which has better reviews, World Clock Pro or Ops Clock?
World Clock Pro is rated higher. World Clock Pro averages 4.8 out of 5 from 1.4K ratings, while Ops Clock averages 4.7 from 11 ratings.
Do World Clock Pro or Ops Clock have ads?
Neither World Clock Pro nor Ops Clock shows ads.
Which is updated more often, World Clock Pro or Ops Clock?
World Clock Pro ships an update every 2 months, and Ops Clock every 5 months. Most recently, World Clock Pro was updated on October 22, 2026 and Ops Clock on October 13, 2026.

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