Comparison

World Clocks / Time Converter vs World Time Clock Master

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

Head to head
About

World Clocks / Time Converter

Easily track time across multiple global time zones with accurate DST calculations. Select from over 400 cities worldwide, customize clock names, and enjoy automatic time adjustments without needing internet access.

Highlights
  • 12 clocks for 12 different time zones
  • Timezone selection from 400+ cities
  • Customizable clock names
  • Accurate DST rule application
  • Automatic time adjustments
  • Perpetual clocks with future DST accounting
Features
Read full description

World Clocks displays time in 12 different time zones around the world. More than 400 towns in the world along with the accurate DST rules applied are available for your clock selection. If you do not find your town in the list, you can select a nearby town and assign your own customized name to the clock. For all cities the accurate DST (Day Light Saving) rules are maintained for this year and for several more years to come. All clocks are thoroughly tested for DST rules at various cities. For example, Karachi (Pakistan) applied DST in 2009, but does not apply DST in 2010 and all future years through 2019. All such rules are carefully coded and tested. Observing a DST rule, a clock will advance or decline automatically at the DST transition. Thus, NO TIME ADJUSTMENTS ARE REQUIRED EVER ON ANY OF THE CLOCKS. Salient Features: •12 clocks for 12 different timezones in the world •Timezone selection based on a searchable list of 400+ cities •A very friendly user interface for city selection •Customized name for each clock •Extremely accurate application of DST rules for all cities in the list •Automatic time adjustment (both advance and decline) at DST transition •All clocks are perpetual (accounts for DST rules in coming years) •All settings are persistent YOU WILL NEVER NEED TO REFER TO INTERNET OR ANY OTHER CLOCK FOR KNOWING THE TIME IN DIFFERENT PARTS OF THE WORLD. WATCH THE DEMO: http://www.youtube.com/watch?v=RtrM8zf_k0k

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

Screenshots

World Clocks / Time Converter4 screens
World Time Clock Master4 screens

Verdict

The call

The clearest difference is price: World Time Clock Master at Free against World Clocks / Time Converter's $4.99. World Time Clock Master also leads on rating (4.6 vs 2.0) and ads (none vs shown). World Clocks / Time Converter's advantage is in-app purchases (none vs 13) and iOS requirement (14.0 vs 17.0). On 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

World Time Clock Master is free to download; World Clocks / Time Converter costs $4.99 up front. World Time Clock Master sells 10 in-app purchases, starting at $2.99 per month. World Clocks / Time Converter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

World Time Clock Master holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: World Time Clock Master has 839 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 36% of World Clocks / Time Converter's written reviews are positive against 67% of World Time Clock Master's.

UpkeepUpdate frequency

World Clocks / Time Converter ships an update every 3 months, World Time Clock Master fortnightly. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

Scorecard9 real differences · 1 level
World Clocks / Time Converter versus World Time Clock Master: the parameters behind the verdict, then further details
ParameterWorld Clocks / Time ConverterWorld Time Clock Master
Price$4.99Free — better
Rating2.0 (2 ratings)4.6 (839 ratings) — better
Positive reviews35.7% of reviews66.7% of reviews — better
Number of ratings2839 — better
Update frequencyEvery 3 monthsFortnightly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, Vision Pro
Requires iOS14.0 — better17.0
Further details — not scored
Size6 MB236 MB
Age rating4+4+
DeveloperABCOMAlex Komarov Inc.

Customer experience

World Clocks / Time Converter

All ratings2 ratings
Positive0.0%
Neutral50.0%
Negative50.0%
Written reviews14 reviews
Positive35.7%
Neutral7.1%
Negative57.1%

World Time Clock Master

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

Bugs and requests

World Clocks / Time Converter

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

World Clocks / Time Converter

No in-app purchases

10 purchases

World Time Clock Master

Subscriptions6
  • 1 month3 variants$2.991 Month
  • 3 months$3.993 Months
  • 1 year1 Year trial2 variants$11.991 Year
Show 3 more
  • 1 year3 Days trial$11.991 Year
  • 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

Questions

Is World Clocks / Time Converter free?
World Clocks / Time Converter costs $4.99, with no in-app purchases.
Is World Time Clock Master free?
World Time Clock Master is free to download, with in-app purchases available.
Which has better reviews, World Clocks / Time Converter or World Time Clock Master?
World Time Clock Master is rated higher. World Clocks / Time Converter averages 2.0 out of 5 from 2 ratings, while World Time Clock Master averages 4.6 from 839 ratings.
Do World Clocks / Time Converter or World Time Clock Master have ads?
World Clocks / Time Converter shows ads; World Time Clock Master does not.
Which is updated more often, World Clocks / Time Converter or World Time Clock Master?
World Clocks / Time Converter ships an update every 3 months, and World Time Clock Master fortnightly. Most recently, World Clocks / Time Converter was updated on October 23, 2026 and World Time Clock Master on October 27, 2026.

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