World Time Clock vs CheckTimeYo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World Time Clock
This app helps you track time differences across multiple cities, with real-time sunrise and sunset notifications. It's useful for business by monitoring stock market hours and partner work times, offering a visual representation of day and night cycles globally.
- Real-time sunrise and sunset notifications
- Business hour tracking for stock markets and partners
- Calculates time differences with home city as standard
- Visual day/night line with seasonal changes
- Weather, temperature, and humidity display
- Covers approximately 600 major cities
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Features of WorldTimeClock ・You can be notified of start time, working hours, sunrise, and sunset. You can also use it for business by setting the opening and closing times of the stock market and the business hours of your business partners. ・By setting your home city as the standard, the time difference with other cities is calculated and displayed. ・You can see whether it is day or night at a glance with the day/night line that moves in real time. Of course, it also accommodates seasonal changes in day and night time. ・The list displays the weather, temperature, humidity, sunrise, and sunset times. The black and white background color makes it easy to distinguish between day and night. ・Covering approximately 600 major cities around the world. ・Beautiful graphics, the movement of the sun, and changes in day and night time depending on the season can be seen, making it fun to watch and perfect for everyday use.
CheckTimeYo
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'CheckTimeYo' is a retro-looking clock app that displays the time, the time from cities around the world (489 of them) of your choice, a feed of your choice, a calendar, and today's moon phase. With 390 themes to choose from, you can even select a font to your liking. Download now! It's free, with no ads, no in-app purchases, and no catch! Using this app is easy. For many settings, there's no need to open the Settings screen. Just tap on the area of the screen where you want to make changes. For example, if you want to change the date format to your liking, simply tap on the date displayed on the screen.
Screenshots
Verdict
The clearest difference is in-app purchases: CheckTimeYo at none against World Time Clock's 1. CheckTimeYo also leads on ads (none vs shown). World Time Clock's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, 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
Both are free to download. World Time Clock sells 1 one-off in-app purchase. CheckTimeYo asks for nothing beyond the download.
World Time Clock ships an update every 2 weeks, CheckTimeYo every 6 weeks. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.
| Parameter | World Time Clock | CheckTimeYo |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (4 ratings) — better | — |
| Positive reviews | 36.4% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.1 — better | 17.4 |
| Further details — not scored | ||
| Size | 100 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Hajime Suzuki | Masayoshi Ueda |
In-app purchases
World Time Clock
- Permanent purchase$7.99
CheckTimeYo
No in-app purchases
Questions
Is World Time Clock free?
Is CheckTimeYo free?
Do World Time Clock or CheckTimeYo have ads?
Which is updated more often, World Time Clock or CheckTimeYo?
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