Ops Clock vs World Time Shifter Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ops Clock
A versatile utility app offering a world clock with over 400 cities, unlimited timers, and three powerful calculators for time zone, time, and date arithmetic. It also features an event log to track real-time occurrences and elapsed times.
- World clock with 400+ cities
- Unlimited count-up and countdown timers
- Time zone, time, and date calculators
- Event log with elapsed time tracking
- Customizable labels and notifications
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Professional grade clock and timer tool with four functions in one app: • World clock • Digital seconds display • Compact format • Over 400 cities • Set custom labels • Clocks sorted automatically • Unlimited number of timers • Count-up timers • Countdown timers • Wall clock timers • End-time notifications • Pre-notifications • Elapsed time and ETA in any zone • Three calculators • Time zone calculator helps plan multi-city conf calls • Time calculator for time arithmetic, including across different time zones • Date calculator for date arithmetic • Event Log • Stores a record of real-time events • Shows elapsed time between events This app is free, shows no advertisements, makes no use of the network and collects no personal information. Available in English, Spanish, French, Italian and Portuguese.
World Time Shifter Clock
This app helps you manage time across different time zones for global coordination. Easily plan meetings, stay connected with loved ones, and track events worldwide. Its intuitive display and time-shifting feature make it simple to understand and use.
- Intuitive world clock display
- Time shifting for time zone comparison
- Meeting scheduling across time zones
- Travel time forecasting
- Event reminders and notifications
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Coordinate with anyone, any time, anywhere, around the world with this unique and intuitive world clock. SYNC TEAMS - schedule overlap feature makes it easy to see when everyone's schedule coincides. KEEP IN TOUCH - Stay connected to family around the globe - know when it's the best time to call your relatives in another time zone. GREAT FOR TRAVEL - Plan your travel - use it to forecast your landing time after a long flight thru multiple time zones. GLOBAL SPORTS MATCHES - Don't miss the opening kick-off of the match in Manchester. TRADING MARKETS - Stay on top of the financial markets around the world. Features • Unique Intuitive Display - Super easy to see the times around the world • Time Shifting: Rotate the clock forwards or backwards to see time changes. • Large Widget - see the full clock face right on your home screen. • Schedule Overlap - see hours of overlap for schedules in one or more locations. • Reminders: Creates notifications for any time, any place.
Screenshots
Verdict
The clearest difference is ads: Ops Clock at none against World Time Shifter Clock's shown. Ops Clock also leads on rating (4.7 vs 4.4) and monetization model (free vs ad-supported). World Time Shifter Clock's advantage is update cadence (every 3 weeks vs every 5 months) and ratings volume (98 vs 11). On price, review sentiment, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Ops Clock holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: World Time Shifter Clock has 98 ratings behind it against 11, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Ops Clock ships an update every 5 months, World Time Shifter Clock every 3 weeks. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.
| Parameter | Ops Clock | World Time Shifter Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (11 ratings) — better | 4.4 (98 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 11 | 98 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 2 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | James Kretchmar | David Richmond |
Customer experience
Ops Clock
World Time Shifter Clock
In-app purchases
Ops Clock
No in-app purchases
World Time Shifter Clock
No in-app purchases
Questions
Is Ops Clock free?
Is World Time Shifter Clock free?
Which has better reviews, Ops Clock or World Time Shifter Clock?
Do Ops Clock or World Time Shifter Clock have ads?
Which is updated more often, Ops Clock or World Time Shifter Clock?
Other comparisons
