Comparison

TimeZone Expert vs Hourline

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

Head to head
About

TimeZone Expert

Features
Read full description

TimeZone Expert helps you compare world times and plan across time zones with less guesswork. Choose your local city, add related cities, and instantly see the matching time around the world. Adjust one time and every city updates together, making it easier to find a good time for meetings, calls, travel planning, or staying connected with family and friends abroad. TimeZone Expert also highlights weekends, public holidays, and off-work hours, so you can avoid inconvenient times before sending an invite. Key features: • Compare multiple cities at the same time • Adjust one time and see all cities update together • Automatically detect your local city or choose it manually • Search cities, countries, and time zones • Show weekends, public holidays, and off-work hours • Add selected times to your calendar • Support for Apple Calendar, Google Calendar, and Outlook • Home Screen widgets for quick time checks • Apple Watch support for your selected cities • Custom holidays and office closures for specific cities • Built-in language support for international users TimeZone Expert is designed for remote teams, international families, frequent travelers, global students, and anyone who works or communicates across time zones.

About

Hourline

This app displays a home screen widget that compares working hours across multiple cities. It visually indicates when people are likely awake or asleep, making it easy to find suitable times for communication.

Highlights
  • Home screen working hours comparison
  • Live, ticking clocks
  • Up to seven cities
  • Daylight saving and half-hour offsets
  • Search any city or IANA time zone
  • Offline functionality
Features
Read full description

Hourline puts a working-hours comparison on your home screen. Each city gets a strip of hours running from four hours back to eight hours ahead. Every column is the same moment in every city, so reading straight down tells you what time it is in each place — and whether anyone is awake. Color does the rest. Easily see working hours, early morning, evening, and night. Finding a window where three cities are all in daylight takes about a second. • Live clocks that tick continuously, to the second • Up to seven cities, in medium and large widget sizes • The current hour underlined in every city • A day marker when a city is on a different date than yours • Search any city or IANA time zone, in any of the eight supported languages • Reorder cities — the first is home, and every offset is shown relative to it • Daylight saving and half-hour offsets handled correctly • Light and dark appearance, following your system setting Built for the small, constant question: is it a reasonable hour to message or call someone right now? No account or sign-in required. Clocks, time zone comparisons, and widgets work offline. Your city list and preferences are saved on your device.

Screenshots

TimeZone Expert3 screens
Hourline4 screens

Verdict

The call

The clearest difference is in-app purchases: TimeZone Expert at none against Hourline's 1. TimeZone Expert also leads on update cadence (every 5 days vs every 2 weeks) and device support (3 vs 1). Hourline's advantage is iOS requirement (16.4 vs 18.0). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Hourline sells 1 one-off in-app purchase. TimeZone Expert asks for nothing beyond the download.

UpkeepUpdate frequency

TimeZone Expert ships an update every 5 days, Hourline every 2 weeks. Both last shipped on November 10, 2026.

Scorecard4 real differences · 5 level
TimeZone Expert versus Hourline: the parameters behind the verdict, then further details
ParameterTimeZone ExpertHourline
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.016.4 — better
Further details — not scored
Size14 MB52 MB
Age rating4+4+
DeveloperPo-Han ChenJin Woo Park

In-app purchases

None

TimeZone Expert

No in-app purchases

1 purchases

Hourline

One-time1
  • Unlock Customizations$4.99

Questions

Is TimeZone Expert free?
TimeZone Expert is free to download, with no in-app purchases.
Is Hourline free?
Hourline is free to download, with in-app purchases available.
Do TimeZone Expert or Hourline have ads?
Neither TimeZone Expert nor Hourline shows ads.
Which is updated more often, TimeZone Expert or Hourline?
TimeZone Expert ships an update every 5 days, and Hourline every 2 weeks. Most recently, TimeZone Expert was updated on November 10, 2026 and Hourline on November 10, 2026.

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