World Cal vs ZoneMate
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.
ZoneMate
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Universal App! One purchase gets your iPhone, iPad, and macOS apps--all for the same price! This includes all of the features below: - Add a contact, city, or time zone to keep track of - Create a group to organize contacts, cities, and time zones - Set working hours for contacts - Plan a time with intuitive status colors to find the best time - Share out the time via email, text message, and more - Easily create a calendar invite in the app with the time you found - See when the next daylight savings time change happens for a given location - Quickly see sunrise and sunset times Finally... - No ads and no subscriptions--ever!
Screenshots
Verdict
The clearest difference is price: World Cal at Free against ZoneMate's $3.99. World Cal also leads on update cadence (every 4 months vs every 9 months). ZoneMate's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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
World Cal is free to download; ZoneMate costs $3.99 up front. World Cal sells 1 one-off in-app purchase. ZoneMate asks for nothing beyond the download.
World Cal ships an update every 4 months, ZoneMate every 9 months. The most recent releases landed on November 9, 2026 and October 30, 2026 respectively.
| Parameter | World Cal | ZoneMate |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.9 (315 ratings) — better | — |
| Positive reviews | 76.5% of reviews | — |
| Number of ratings | 315 — better | — |
| Update frequency | Every 4 months — better | Every 9 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, Mac |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 21 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Geospike Pty Ltd | Gregory Bell |
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
ZoneMate
Not enough reviews yet to summarise bugs or requests.
In-app purchases
World Cal
- Remove Advertising$19.95
ZoneMate
No in-app purchases









