Comparison

Zonal Time vs Hourline

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

Head to head
About

Zonal Time

Features
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Zonal is a beautifully crafted world clock for people who live, work, and connect across time zones. Whether you're scheduling a call with a client in Tokyo, checking in on family in London, coordinating with a remote team in New York, or planning a trip to Sรฃo Paulo โ€” Zonal makes it effortless to know what time it is, anywhere in the world, at any moment. Your world, on one screen. Add any city from over 100 destinations worldwide, or choose from all 50 US states and Washington DC. Each location appears as a sleek card showing the local time, date, timezone abbreviation, UTC offset, and a live day-progress bar that visualizes exactly where in the 24-hour cycle that place currently sits. A time-of-day phase label โ€” Dawn, Morning, Afternoon, Evening, Night, or Late Night โ€” tells you at a glance whether your contact is starting their day or winding down for the night. Slide through time. Zonal's timeline slider lets you move forward or backward up to 12 hours and watch every city on your list update simultaneously. Finding a meeting window that works for everyone has never been simpler. See the overlap, pick the time, and get on with your day. Set any time, any city. Tap the time display on any card to set a specific local time for that city using an elegant iOS-style wheel picker. Dial in the exact hour and minute and Zonal instantly converts it across every location on your list โ€” accounting for timezone offsets and daylight saving rules automatically. Need to pin a specific date and time? Use the built-in date and time picker to lock in any moment, past or future. Daylight saving, handled automatically. Zonal applies daylight saving rules for every location based on the exact date you're viewing. Scroll forward to November and watch US cities shift back an hour. Jump to summer in Australia and see the southern hemisphere DST come into effect. A clear DST badge on each card tells you when a clock has shifted so there are never any surprises. Reorder your world your way. Press and hold the drag handle on any card to pick it up and move it to exactly where you want it. A smooth floating preview follows your finger while a gold indicator shows precisely where the card will land. Designed to be enjoyed. Zonal ships with two refined themes โ€” a deep dark mode with warm gold accents for night-time use, and a light parchment mode that's equally premium in daylight. Your preference is saved automatically. Every detail, from the serif clock numerals to the hairline progress bars and the gentle animations, has been considered as part of a cohesive, considered design. Zonal isn't just a utility you reach for reluctantly. It's an instrument you'll actually enjoy using.

About

Hourline

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 โ€” 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. โ€ข Live clocks that tick continuously, to the second โ€ข Up to seven cities, in medium and large widget sizes โ€ข The current hour underlined in every city โ€ข A day marker when a city is on a different date than yours โ€ข Search any city or IANA time zone โ€ข Reorder cities โ€” the first is home, and every offset is shown relative to it โ€ข Daylight saving and half-hour offsets handled correctly Built for the small, constant question: is it a reasonable hour to message or call someone right now? No account. No sign-in. No network requests at all. Your city list is stored on your device and is the only thing the app keeps.

Screenshots

Zonal Time4 screens
Hourline4 screens

Verdict

The call

The clearest difference is in-app purchases: Zonal Time at none against Hourline's 1. Hourline's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Zonal Time ships an update every 3 months, Hourline every 2 weeks. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

Scorecard2 real differences ยท 4 level
Zonal Time versus Hourline: the parameters behind the verdict, then further details
ParameterZonal TimeHourline
PriceFreeFree
Update frequencyEvery 3 monthsEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS17.016.4 โ€” better
Further details โ€” not scored
Size4 MB46 MB
Age rating4+4+
DeveloperRami AlZaidJin Woo Park

In-app purchases

None

Zonal Time

No in-app purchases

1 purchases

Hourline

One-time1
  • Unlock Customizations$4.99

Questions

Is Zonal Time free?
Zonal Time is free to download, with no in-app purchases.
Is Hourline free?
Hourline is free to download, with in-app purchases available.
Do Zonal Time or Hourline have ads?
Neither Zonal Time nor Hourline shows ads.
Which is updated more often, Zonal Time or Hourline?
Zonal Time ships an update every 3 months, and Hourline every 2 weeks. Most recently, Zonal Time was updated on October 10, 2026 and Hourline on September 30, 2026.

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