World Cal vs Time Zone Converter・Convertime
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World Cal
Easily schedule global meetings and events across different time zones. This app helps you find the perfect time for international calls and trips by comparing multiple time zones and integrating with your calendar.
- Cross-timezone scheduling
- View calendar in multiple timezones
- Time travel into the future
- Add unlimited timezones
- Day/night indicators
- Home screen and watch widgets
- DST accuracy
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Coordinate global meetings, calls, and events without the timezone math. Standard world clocks only tell you what time it is right now. World Calendar goes further: it’s a powerful timezone converter and international meeting planner that lets you look into the future to find the perfect time for everyone. Whether you are scheduling a global team sync, planning an international trip, or calling family overseas, World Calendar integrates directly with your iOS Calendar to make cross-timezone scheduling effortless. CROSS-TIMEZONE SCHEDULING Compare multiple timezones side-by-side to instantly pinpoint the ideal meeting time. Tap anywhere to set a target time, and tap twice to seamlessly create an event directly in your calendar. VIEW YOUR CALENDAR IN MULTIPLE TIMEZONES World Calendar displays your existing events across all your selected timezones. Create, edit, and share events with a single tap, ensuring your global schedule is always perfectly aligned. KEY FEATURES: • Time Travel: Scroll into the future to plan days, weeks, or months ahead. • No Limits: Add and compare as many timezones as you need. • Day/Night Indicators: Instantly see if your contact is awake or asleep. • Home Screen Widget: Check your favorite timezones at a glance without unlocking your device. • Watch Widget and App: Put your recently selected timezones on your wrist • Easy Search: Find locations by city name, timezone abbreviation (e.g., EST, GMT), or UTC offset. • Global Sharing: Send event invites to other users that automatically adapt to their local timezone. • DST Accuracy: Fully automatic adjustments for daylight saving time changes globally. • Nautical Time Zones: Full support for standard UTC offsets without DST adjustments. • Landscape View: Turn your device for a wider, comprehensive timeline view.
Time Zone Converter・Convertime
Easily find the current time and plan meetings across different time zones. This tool helps you avoid mental calculations by visually aligning schedules and identifying overlapping hours for seamless coordination.
- Multiple time zone display
- Meeting planner
- Visual time scale
- AM/PM or 24-hour format
- GMT code display
- Meeting time export
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Find the exact time & schedule meetings across multiple time zones easily with Convertime. Don't strain your brain by calculating it in your mind. Just swipe the time scale to the left and find the best time for different locations or use Meeting Planner feature to coordinate meetings. Use Convertime for planning meetings, catching up with family or friends, traveling, and many other things. Feel free to: * Add as many locations as you want * Rename locations for your needs * Use AM/PM or 24-hour time format * See the time difference and GMT code of each location * Set the exact date and time for the best match * Coordinate meetings across multiple time zones by visually aligning hours * Instantly see overlapping hours * Copy or export meeting time
Screenshots
Verdict
The clearest difference is in-app purchases: Time Zone Converter・Convertime at none against World Cal's 1. Time Zone Converter・Convertime also leads on ads (none vs shown) and review sentiment (100% vs 76%). World Cal's advantage is ratings volume (315 vs 4) and device support (4 vs 1). On price, rating 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
Both are free to download. World Cal sells 1 one-off in-app purchase. Time Zone Converter・Convertime asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for World Cal against 5.0 for Time Zone Converter・Convertime. That said, the two scores are not equally well evidenced: World Cal has 315 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 76% of World Cal's written reviews are positive against 100% of Time Zone Converter・Convertime's.
World Cal ships an update every 4 months, Time Zone Converter・Convertime every 2 months. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.
| Parameter | World Cal | Time Zone Converter・Convertime |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (315 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 76.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 315 — better | 4 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Geospike Pty Ltd | Siarhei Serdziukou |
Customer experience
World Cal
Time Zone Converter・Convertime
Bugs and requests
World Cal
Reported bugs
7 issues- 🐛 Inappropriate ads in free version
- 🐛 Widget settings not saved
- 🐛 Cannot add new events with double tap
- 🐛 Timezone abbreviations not displayed
- 🐛 Search feature doesn't work
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- 🐛 Crashes when adding a city
- 🐛 Widget expansion settings not saved
Requested features
5 requests- Add more cities
- Option to freeze time zones for comparison
- Switch between 24-hour and AM/PM clock
- Cleaner design with better calendar event integration
- Ability to pick a specific date to view
Time Zone Converter・Convertime
Not enough reviews yet to summarise bugs or requests.
In-app purchases
World Cal
- Remove Advertising$19.95
Time Zone Converter・Convertime
No in-app purchases
Questions
Is World Cal free?
Is Time Zone Converter・Convertime free?
Which has better reviews, World Cal or Time Zone Converter・Convertime?
Do World Cal or Time Zone Converter・Convertime have ads?
Which is updated more often, World Cal or Time Zone Converter・Convertime?
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