Comparison

WorldTime Calendar vs OffTime

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

WorldTime Calendar

Features
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WorldTime is a clean world time, date, and holiday app. Quickly check the current time, local date, GMT offset, weekday or weekend status, and supported holiday calendars for cities around the world. It works on iPhone, Apple Watch, and Home Screen widgets, making it useful for remote work, travel planning, international contacts, and everyday time checks. Main features: - Add and manage multiple world cities - View current time, local date, and GMT offset - View holidays, make-up workdays, and calendars for supported regions - Support for 12-hour and 24-hour time - Multilingual interface - Home Screen widgets - Apple Watch support - Pro unlocks more cities, theme colors, app icons, and iCloud sync Holiday data comes from public data sources. Some countries or regions may not support holiday data. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

OffTime

Features
Read full description

When should an international meeting start? Will it be daytime or midnight when you land? World Clock helps you see local times, working hours and the best time to connect. Great for cross-border operations, international trade, remote work, study abroad, global families and business travel. [World Clock] Add the cities you care about to check live local time, time differences, working hours and contact windows. Daylight saving time is calculated automatically, and you can reorder cities by drag and drop. [Working Hours & Reminders] Set custom working hours for each city (9:00–18:00 by default), then quickly see overlapping hours between you and the other side. Add reminders for specific periods so you never miss the best window for international communication. [Time Zone Converter] Convert dates and times between any cities in seconds. Ideal for flights, meetings and business trips. Share conversion results with one tap. [Meeting Slot Recommendations] Select participating cities and get meeting times that fit everyone’s working hours. Fully overlapping slots appear first, while non-working and quiet hours are clearly marked. [Widgets] Put your world clock on the Home Screen, or on the iPhone Lock Screen, to check multiple city times without opening the app. [Offline & Private] Core features work completely offline, including in Airplane Mode, with no data upload and no third-party SDKs. Import and export city lists to migrate between devices.

Screenshots

WorldTime Calendar4 screens
OffTime4 screens

Verdict

The call

The clearest difference is in-app purchases: OffTime at none against WorldTime Calendar's 3. WorldTime Calendar's advantage is update cadence (daily vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. WorldTime Calendar sells 3 in-app purchases, starting at $0.39 per month. OffTime asks for nothing beyond the download.

UpkeepUpdate frequency

WorldTime Calendar ships an update daily, OffTime fortnightly. Both last shipped on October 24, 2026.

Scorecard2 real differences Β· 4 level
WorldTime Calendar versus OffTime: the parameters behind the verdict, then further details
ParameterWorldTime CalendarOffTime
PriceFreeFree
Update frequencyDaily β€” betterFortnightly
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, Apple Watch β€” betteriPhone, iPad
Requires iOS17.017.0
Further details β€” not scored
Size10 MB3 MB
Age rating4+4+
Developer均 周婷 李

In-app purchases

3 purchases

WorldTime Calendar

Subscriptions2
  • WorldTime Pro Monthly$0.391 Month
  • WorldTime Pro Half-Year$1.496 Months
One-time1
  • WorldTime Pro Lifetime$1.99
None

OffTime

No in-app purchases

Questions

Is WorldTime Calendar free?
WorldTime Calendar is free to download, with in-app purchases available.
Is OffTime free?
OffTime is free to download, with no in-app purchases.
Do WorldTime Calendar or OffTime have ads?
Neither WorldTime Calendar nor OffTime shows ads.
Which is updated more often, WorldTime Calendar or OffTime?
WorldTime Calendar ships an update daily, and OffTime fortnightly. Most recently, WorldTime Calendar was updated on October 24, 2026 and OffTime on October 24, 2026.

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