Comparison

World Time Clock Master vs Time Zone Clock

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

Time Zone Clock

Never miss a call or appointment due to time zone differences. This app helps you manage world clocks and set alarms accurately across different locations. It's designed for travelers, remote teams, and anyone needing to coordinate globally.

Highlights
  • Time zone alarms
  • iOS 26 AlarmKit integration
  • Lock Screen and Home Screen widgets
  • 12 & 24 hour clock display
  • Global city list management
  • Time slider for future viewing
Features
Read full description

Ever missed a call because your reminder went off in the wrong time zone? Or set an alarm that rang hours too early—or too late? With GoTime, your clocks and alarms stay aligned no matter where in the world you (or your team) are. GoTime is a clean, reliable world clock and alarm app built for travelers, remote workers, and anyone coordinating across time zones. Features: • Time Zone Alarms: Set alarms in any city’s local time, ideal for meetings, flights, or staying in sync with family abroad. • iOS 26 Alarm Integration: Built on Apple’s latest AlarmKit, GoTime’s alarms work seamlessly with the native system for dependable scheduling. • Widgets Everywhere: Add world clocks and alarms to your Lock Screen, Home Screen, or Smart Stack for instant access. • 12 & 24 Hour Clocks: View both formats side by side. • Global City List: Add and manage cities from around the world. • Time Slider: Quickly see what time it is elsewhere as your day moves forward. Terms & Conditions: https://bushman.studio/#terms

Screenshots

World Time Clock Master4 screens
Time Zone Clock4 screens

Verdict

The call

The clearest difference is monetization model: Time Zone Clock at free with in-app purchases against World Time Clock Master's subscription. World Time Clock Master's advantage is review sentiment (66% vs 57%) and ratings volume (816 vs 252). On price, rating, update cadence and ads 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 10 in-app purchases, starting at $2.99 per month and Time Zone Clock sells 8 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

World Time Clock Master holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 816 and 252 respectively. Written reviews point the same way: 66% of World Time Clock Master's written reviews are positive against 57% of Time Zone Clock's.

UpkeepUpdate frequency

World Time Clock Master ships an update fortnightly, Time Zone Clock every 10 days. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
World Time Clock Master versus Time Zone Clock: the parameters behind the verdict, then further details
ParameterWorld Time Clock MasterTime Zone Clock
PriceFreeFree
Rating4.6 (816 ratings) — better4.4 (252 ratings)
Positive reviews65.8% of reviews — better57.1% of reviews
Number of ratings816 — better252
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, Vision Pro — betteriPhone, iPad
Requires iOS17.0 — better18.2
Further details — not scored
Size236 MB100 MB
Age rating4+4+
DeveloperAlex Komarov Inc.Bushman, LLC

Customer experience

World Time Clock Master

All ratings816 ratings
Positive90.8%
Neutral2.8%
Negative6.4%
Written reviews76 reviews
Positive65.8%
Neutral5.3%
Negative28.9%

Time Zone Clock

All ratings252 ratings
Positive84.9%
Neutral6.0%
Negative9.1%
Written reviews21 reviews
Positive57.1%
Neutral4.8%
Negative38.1%

User reviews

World Time Clock Master

From 816 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

Time Zone Clock

From 252 App Store ratings

What we love

  • 👍 Easy to use and understand
  • 👍 Great for aviation and amateur radio
  • 👍 Helpful for truck drivers with time zones
  • 👍 Clean and direct interface
  • 👍 Good for understanding military time

Room to improve

  • 🐛 Subscription required for widgets
  • 🐛 App is useless without payment
  • 🐛 Paid app doesn't work
  • 🐛 Subscription cancelled without request
  • 🐛 In-app purchases not free

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

Time Zone Clock

Reported bugs

4 issues
  • Widgets not available after purchase
  • App cancelled subscription without request
  • In-app purchases alleged free but not
  • Free lifetime purchase cancelled

Requested features

3 requests
  • Make the app free
  • Widget should display more than one time zone
  • Option to choose between 24-hour or 12-hour format

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
8 purchases

Time Zone Clock

Subscriptions7
  • GoTime PRO - Unlimited Access$2.991 Month
  • Secret Discount$8.991 Year
  • GoTime PRO - Unlimited Access1 Month trial2 variants$14.991 Year
Show 4 more
  • Encore Annual 1 Month Trial1 Month trial$14.991 Year
  • GoTime PRO - Unlimited Access3 Days trial$14.991 Year
  • GoTime PRO - Unlimited Access3 Days trial$19.991 Year
  • GoTime PRO - Unlimited Access1 Month trial$19.991 Year
One-time1
  • Lifetime Access$49.99

Questions

Is World Time Clock Master free?
World Time Clock Master is free to download, with in-app purchases available.
Is Time Zone Clock free?
Time Zone Clock is free to download, with in-app purchases available.
Which has better reviews, World Time Clock Master or Time Zone Clock?
World Time Clock Master is rated higher. World Time Clock Master averages 4.6 out of 5 from 816 ratings, while Time Zone Clock averages 4.4 from 252 ratings.
Do World Time Clock Master or Time Zone Clock have ads?
Neither World Time Clock Master nor Time Zone Clock shows ads.
Which is updated more often, World Time Clock Master or Time Zone Clock?
World Time Clock Master ships an update fortnightly, and Time Zone Clock every 10 days. Most recently, World Time Clock Master was updated on September 20, 2026 and Time Zone Clock on September 22, 2026.

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