World Clock vs HZLH
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World Clock
Easily calculate time differences worldwide by scrolling a dynamic time bar. Add any city, set specific dates and times, and plan international meetings or calls effortlessly. The app syncs with iOS time data.
- Dynamic time bar for instant difference calculation
- Add and manage multiple cities
- Direct date and time specification
- Customizable city names
- Syncs with iOS time data
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"World Clock" is the best app to calculate time differences all over the world. All cities' times change automatically just by scrolling it with your finger. Therefore, you don't need to add or subtract times any more to calculate time differences. ■■Features■■ -Scrolling the time bar on the side of the screen up and down simultaneously changes the time in each city to the future or past. -Double-tap the time bar to change the time unit between 1 minute and 1 hour. -You can add any city from the list of cities provided in the app. -Tap each city to specify the date and time directly. -Press and hold on a city to change the city and edit the custom name. -Only one fixed city can be displayed at the top of the screen. ■■Examples of use■■ -International meeting planner -International call -Trip planning Disclaimer:This application has been built with extreme care and attention. However, it does not guarantee the accuracy of the names and times of the cities displayed. Please note that we are not liable whatsoever for any profit loss, or any other form of loss experienced by the customer from using this application. ※We don't have any time difference data in our app. We have been inquiring about time differences of each city to iOS. Therefore, “World Clock” shows you the time of iOS. As a result, depending on the version of iOS you are using, the exact time may not be displayed. If you find a time lag in our app, please confirm default "Clock" app on your iPhone. If the time in "Clock" app is the same with the time in our “World Clock”, it means that our app is running normally. ※Abbreviated name of time zone was originally researched and added. If you notice any mistakes, please contact us from the support site. ※The screenshots are specially edited not to show ads.
HZLH
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This application is mainly used for product order review to facilitate the review and inquiry of orders. Do not need to register an account, use a fixed account to achieve convenient management and view the corresponding production situation, without any charges.
Screenshots
Verdict
The clearest difference is in-app purchases: HZLH at none against World Clock's 1. HZLH also leads on ads (none vs shown) and update cadence (every 8 days vs every 6 weeks). On price and device support 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 Clock sells 1 one-off in-app purchase. HZLH asks for nothing beyond the download.
World Clock ships an update every 6 weeks, HZLH every 8 days. The most recent releases landed on June 9, 2026 and May 16, 2026 respectively.
| Parameter | World Clock | HZLH |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (14 ratings) — better | — |
| Positive reviews | 77.4% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 6 weeks | Every 8 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuki Fukui | Radiance Instruments Ltd |
In-app purchases
World Clock
- Remove Advertisement$1.99
HZLH
No in-app purchases
