World Clock Pro vs UTC Orbit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Universal clock access
- Effortless time conversion
- Schedule calendar events
- Instant time sharing
- Large city and timezone database
- Automatic timezone updates
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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
UTC Orbit
This utility converts between human-readable dates and a YYDDD.FFFFFF format essential for spacecraft orbital element calculations. It also features a UTC alarm clock based on the day of the year and a large digit UTC display.
- UTC time conversion
- YYDDD.FFFFFF format display
- UTC alarm clock
- Day of Year alarm setting
- Large digit UTC clock display
- Background alarm notifications
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UTC Orbit; is a time conversion utility for use with Earth orbital elements calculations for spacecraft. The application also contains a UTC alarm clock that is based on "Day of Year". UTC stands for "Universal Time Coordinated", but is also known as Zulu Time or GMT Time. The application allows the user to select any epoch time in the future or past via pick wheels and that time is then displayed as YYDDD.FFFFFF where YY=Two digit year, where DDD=day of the year (000 - 366), and where .FFFFFF is the decimal fraction of the day. This is the standard format for manipulation of spacecraft tracking TLE's (Two Line Element sets). The app also works in reverse where the user types in the epoch time and the pick wheels will spin to the human readable date. The alarm is set via the pick wheels and operates in the background for sound and screen notification as well as the foreground if application is running. The user must "allow notifications" for the background to function. A useful feature of the app is that if you rotate the iPhone you then have a large digit UTC clock. iPad large digit clock is selected by touching the button "UTC screen". Note that this locks the screen rotation on all devices and to return to the calculation screen you must touch "Back to main screen".
Screenshots
Verdict
The clearest difference is in-app purchases: UTC Orbit at none against World Clock Pro's 6. UTC Orbit also leads on review sentiment (100% vs 77%) and rating (5.0 vs 4.8). World Clock Pro's advantage is ratings volume (1.3K vs 2) and update cadence (every 2 months vs every 8 months). On price, 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
Both are free to download. World Clock Pro sells 5 in-app purchases, starting at $1.99 per month. UTC Orbit asks for nothing beyond the download.
UTC Orbit holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: World Clock Pro has 1.3K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 77% of World Clock Pro's written reviews are positive against 100% of UTC Orbit's.
World Clock Pro ships an update every 2 months, UTC Orbit every 8 months. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.
| Parameter | World Clock Pro | UTC Orbit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.3K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 76.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.3K — better | 2 |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 41 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Alex Komarov Inc. | Dave Massey |
Customer experience
World Clock Pro
UTC Orbit
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
UTC Orbit
Not enough reviews yet to summarise bugs or requests.
In-app purchases
World Clock Pro
- 1 month$1.991 Month
- 1 month2 variants$2.991 Month
- 1 year3 Days trial$9.991 Year
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- 1 year3 Days trial$11.991 Year
- 1 year3 Days trial$19.991 Year
UTC Orbit
No in-app purchases
Questions
Is World Clock Pro free?
Is UTC Orbit free?
Which has better reviews, World Clock Pro or UTC Orbit?
Do World Clock Pro or UTC Orbit have ads?
Which is updated more often, World Clock Pro or UTC Orbit?
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