Comparison

World Time Clock Master vs Unit Converter Currency

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

Unit Converter Currency

This app offers a fast and simple way to convert units and currencies. It features live currency rates and supports over 200 units across 22 categories, with pinned conversions updating in real-time as you type. It also includes a unique feature to spell out numbers in multiple languages.

Highlights
  • Real-time unit and currency conversion
  • 22 categories and 200+ units
  • Live currency rates with automatic updates
  • Pinned conversions for quick access
  • Numbers spelled out in 65 languages
  • Offline unit conversion
Features
Read full description

Currency and Units Converter is a clean, fast unit and currency converter. Type a number on the built-in keypad and watch all your pinned conversions update live. Pin the conversions you use most — temperature, length, weight, currency, and more — and see results instantly as you type. Tap the reverse button to flip all conversions at once. 22 CATEGORIES, 200+ UNITS Temperature, Length, Mass, Volume, Speed, Area, Duration, Energy, Pressure, Data Size, Frequency, Power, Voltage, Electric Current, Electric Charge, Electric Resistance, Acceleration, Angle, Concentration, Fuel Efficiency, Shoe Sizes, and Spelled Out numbers. LIVE CURRENCY RATES 30+ currencies with rates from the European Central Bank, refreshed automatically. Pull down to refresh anytime. SPELLED OUT NUMBERS See any number written out in 65 languages — from Arabic to Welsh. SHOE SIZE CONVERTER Convert between US Men, US Women, UK, Europe, and Mondopoint sizing systems. DESIGNED FOR SIMPLICITY No ads. No subscriptions. No account required. Just a fast, beautiful converter that works offline for units and updates currency rates when connected.

Screenshots

World Time Clock Master4 screens
Unit Converter Currency4 screens

Verdict

The call

The clearest difference is price: World Time Clock Master at Free against Unit Converter Currency's $2.99. World Time Clock Master also leads on ratings volume (847 vs 2). Unit Converter Currency's advantage is in-app purchases (none vs 10) and rating (5.0 vs 4.6). On ads, device support 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

World Time Clock Master is free to download; Unit Converter Currency costs $2.99 up front. World Time Clock Master sells 9 in-app purchases, starting at $2.99 per month. Unit Converter Currency asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Unit Converter Currency holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: World Time Clock Master has 847 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

World Time Clock Master ships an update fortnightly, Unit Converter Currency every 3 days. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
World Time Clock Master versus Unit Converter Currency: the parameters behind the verdict, then further details
ParameterWorld Time Clock MasterUnit Converter Currency
PriceFree — better$2.99
Rating4.6 (847 ratings)5.0 (2 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings847 — better2
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionPaid — better
DevicesiPhone, iPad, Vision Pro — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size236 MB11 MB
Age rating4+4+
DeveloperAlex Komarov Inc.Carlos Manso

Customer experience

World Time Clock Master

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

Unit Converter Currency

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

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

Unit Converter Currency

Not enough reviews yet to summarise bugs or requests.

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
None

Unit Converter Currency

No in-app purchases

Questions

Is World Time Clock Master free?
World Time Clock Master is free to download, with in-app purchases available.
Is Unit Converter Currency free?
Unit Converter Currency costs $2.99, with no in-app purchases.
Which has better reviews, World Time Clock Master or Unit Converter Currency?
Unit Converter Currency is rated higher. World Time Clock Master averages 4.6 out of 5 from 847 ratings, while Unit Converter Currency averages 5.0 from 2 ratings.
Do World Time Clock Master or Unit Converter Currency have ads?
Neither World Time Clock Master nor Unit Converter Currency shows ads.
Which is updated more often, World Time Clock Master or Unit Converter Currency?
World Time Clock Master ships an update fortnightly, and Unit Converter Currency every 3 days. Most recently, World Time Clock Master was updated on November 12, 2026 and Unit Converter Currency on November 5, 2026.

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