Comparison

World Time Clock Master vs Ora

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

Head to head
About

World Time Clock Master

Effortlessly manage multiple time zones with this app. Convert times instantly, schedule events, and view global clocks at a glance with interactive widgets. Features atomic accuracy and a vast database of locations.

Highlights
  • Multiple time zone display
  • Interactive time conversion
  • Event scheduling
  • Atomic time accuracy
  • Dynamic home screen widgets
  • List mode for text view
  • Real moon phases and sunrise/sunset
Features
Read full description

THE EASIEST WAY TO DEAL WITH MULTIPLE TIMEZONES + INTERACTIVE WIDGETS Sick of screwing up meeting times and missing calls? This app cuts through time-zone confusion and hands you the perfect hour at a glance. Forget guesswork — just click, connect, and impress. KEY FEATURES EVENT SCHEDULING MADE EASY Found the perfect meeting time? Add events to your calendar with just a tap, and never miss an international webinar, call, or special moment again. ATOMIC ACCURACY No drift, no guesswork. Each second syncs with the atomic standard, so you can trust every moment. Extensive Time Zone Database: Tap into over 160,000 locations and time zones including GMT, UTC, and more. UNIFIED CLOCK FACE View all your essential time zones at a glance on one beautifully designed, customizable clock face. Whether you prefer digital or analog displays (or even military time), everything is exactly where you need it. INTERACTIVE TIME CONVERSION Convert times instantly by simply twisting or swiping across the clock face. Watch as your selected time zones update in real time—making planning international calls, meetings, or travel effortless. DYNAMIC WIDGETS Access global times without even opening the app. Our interactive home screen widget lets you drag a simple line to reveal and convert times, ensuring you’re always in sync no matter where you are. LIST MODE Get a clean, text-based view of all your cities in one column. See times and dates at a glance, and scroll to check future or past hours. It’s a no-fuss way to track the world’s clocks. FEELS LIKE A LUXURY TIMEPIECE We poured effort into details most people never notice — and we’re okay with that. Our users aren’t “most people.” Details include: — Real Moon Phases — Real Moon Rotation — Real Sunrise & Sunset — Advanced City Lights — Haptic Feedback * * * World Clock Master offers a premium subscription: Subscribe to get access to unlimited timezones, interactive widgets, customizations, 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

About

Ora

Visualize global times on an interactive globe. This app allows you to see the current time in various locations worldwide and even travel through time to check past or future times. It's ideal for professionals working across time zones or anyone tracking international events.

Highlights
  • Interactive 3D globe display
  • View time in multiple global locations
  • Time travel feature to see past/future times
  • Useful for cross-time zone work
  • Track international events
Features
Read full description

Ora is a world clock app, in the most literal sense possible. Like any good world clock, it lets you see the time in different locations around the globe; but unlike others, it can show you those times on an actual globe, and you can use Time Travel to see different times. This is especially useful if you work across time zones, or are following events in other time zones; for all those times you might ask questions like “What time is it in New York when it’s 3pm in London?”.

Screenshots

World Time Clock Master4 screens
Ora4 screens

Verdict

The call

The clearest difference is monetization model: Ora at free with in-app purchases against World Time Clock Master's subscription. Ora also leads on rating (4.9 vs 4.6) and review sentiment (85% vs 67%). World Time Clock Master's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (842 vs 71). On price, ads, in-app purchases 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 Time Clock Master sells 9 in-app purchases, starting at $2.99 per month and Ora sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Ora holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: World Time Clock Master has 842 ratings behind it against 71, so its average is the more settled of the two. Written reviews point the same way: 67% of World Time Clock Master's written reviews are positive against 85% of Ora's.

UpkeepUpdate frequency

World Time Clock Master ships an update fortnightly, Ora every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard6 real differences · 4 level
World Time Clock Master versus Ora: the parameters behind the verdict, then further details
ParameterWorld Time Clock MasterOra
PriceFreeFree
Rating4.6 (842 ratings)4.9 (71 ratings) — better
Positive reviews66.7% of reviews85.2% of reviews — better
Number of ratings842 — better71
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, Vision ProiPhone, iPad, Mac, Apple Watch, Vision Pro — better
Requires iOS17.0 — better18.0
Further details — not scored
Size236 MB103 MB
Age rating4+4+
DeveloperAlex Komarov Inc.Dan Eden

Customer experience

World Time Clock Master

All ratings839 ratings
Positive90.9%
Neutral2.5%
Negative6.6%
Written reviews78 reviews
Positive66.7%
Neutral5.1%
Negative28.2%

Ora

All ratings70 ratings
Positive98.6%
Neutral1.4%
Negative0.0%
Written reviews54 reviews
Positive85.2%
Neutral13.0%
Negative1.9%

User reviews

World Time Clock Master

From 842 App Store ratings

What we love

  • 🚀 Delightful scheduling assistance
  • 👍 Feature improvement
  • 👍 The best Timezone helper
  • 👍 One of the best clocks around
  • 👍 The Widget is so damn cool!

Room to improve

  • 🐛 Problemas al actualizar
  • 🐛 Sticky signup interface
  • 🐛 Demo not enough
  • 🔒 NOT A FREE APP
  • 💰 Terrible monetisation model compared to previous app

Ora

From 71 App Store ratings

What we love

  • 👍 Easy to use interface
  • 💡 Innovative time travel feature
  • 🌍 Useful for multiple time zones
  • ✨ Beautifully designed app
  • 🚀 Smooth performance

Room to improve

  • 🐛 Widget time lag
  • 🐛 Widget not updating
  • 🐛 Widget shows incorrect time
  • 🐛 Widget time rounded
  • 🐛 Slider not precise

Bugs and requests

World Time Clock Master

Reported bugs

4 issues
  • Lose all the registered locations after updating the app
  • Sticky signup interface
  • Widget doesn't work
  • GMT and London currently have a 1 hour time difference between the two locations, but the app shows them the same time

Requested features

4 requests
  • Add the time difference in hours between the default location and other locations in both the widget and the app
  • See my calendar events on the dial
  • Make a paid tier that doesn't collect my data
  • Add new event to a Calendar

Ora

Reported bugs

11 issues
  • Widget not reloading or working
  • Widget time is not up to date
  • Widget time is out of sync
  • Widget doesn't show added countries
  • Widget displays template without timezones
Show 6 more
  • Widget time is not accurate
  • Widget rounds up time instead of showing live timings
  • Widget doesn't show minutes
  • Widget displays only hours
  • Widget not showing correct time
  • Widget not showing real time

Requested features

15 requests
  • Add 24-hour format
  • Type in a specific time for conversion
  • Support for Japanese language
  • Rotate dial for time zone adjustment
  • iCloud sync of added cities
Show 10 more
  • Add more cities
  • Option to sort cities
  • Reorder timezone tiles
  • Option for timezone perspective only
  • Widgets with multiple digital clocks
  • Widgets showing minutes for each city
  • Home screen widget with multiple time zones
  • More responsive slider
  • Improve globe feature with accurate shadow
  • Add cities in WITA (UTC+8)

In-app purchases

9 purchases

World Time Clock Master

Subscriptions5
  • 1 month2 variants$2.991 Month
  • 3 months$3.993 Months
  • 1 year3 Days trial$11.991 Year
Show 2 more
  • 1 year$11.991 Year
  • 1 year3 Days trial$19.991 Year
One-time4
  • Lifetime$29.99
  • Lifetime$49.99
  • Lifetime$79.99
Show 1 more
  • Lifetime$99.99
3 purchases

Ora

One-time3
  • Small tip$1.99
  • Medium tip$5.99
  • Large tip$12.99

Questions

Is World Time Clock Master free?
World Time Clock Master is free to download, with in-app purchases available.
Is Ora free?
Ora is free to download, with in-app purchases available.
Which has better reviews, World Time Clock Master or Ora?
Ora is rated higher. World Time Clock Master averages 4.6 out of 5 from 842 ratings, while Ora averages 4.9 from 71 ratings.
Do World Time Clock Master or Ora have ads?
Neither World Time Clock Master nor Ora shows ads.
Which is updated more often, World Time Clock Master or Ora?
World Time Clock Master ships an update fortnightly, and Ora every 2 months. Most recently, World Time Clock Master was updated on November 3, 2026 and Ora on November 4, 2026.

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