# Atomic Clock PRO vs World Clock Time Zone Widget

The clearest difference is ads: World Clock Time Zone Widget at none against Atomic Clock PRO's shown. World Clock Time Zone Widget also leads on update cadence (fortnightly vs every 3 months) and ratings volume (31K vs 10K). Atomic Clock PRO's advantage is iOS requirement (15.6 vs 17.0). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Atomic Clock PRO sells 2 in-app purchases, starting at $1.99 per month and World Clock Time Zone Widget sells 10 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Atomic Clock PRO against 4.7 for World Clock Time Zone Widget. Both are backed by a comparable volume of ratings — 10K and 31K respectively. Written reviews are what separate them: 73% of Atomic Clock PRO's written reviews are positive against 69% of World Clock Time Zone Widget's.

Atomic Clock PRO ships an update every 3 months, World Clock Time Zone Widget fortnightly. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | World Clock Time Zone Widget |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews) | [4.7 (31K ratings)](https://appshunter.io/ios/app/world-clock-time-zone-widget/id912698955/reviews) |
| Number of ratings | 10K | **31K** |
| Positive reviews | **73.0% of reviews** | 68.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 91 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Brachmann Online Marketing GmbH & Co. KG](https://appshunter.io/developer/682848918) | [Lasmit TLB Ltd](https://appshunter.io/developer/535281397) |

## What reviewers say

### Atomic Clock PRO

[App page](https://appshunter.io/ios/app/atomic-clock-pro/id899090224)

Get the most accurate time from an official atomic clock server. This app automatically detects your time zone and allows custom backgrounds. Easily switch between digital and analog clock displays with a swipe.

**Highlights:** Exact time from atomic clock, Automatic time zone recognition, Customizable background images, Digital and analog clock modes, Optional sound alerts, Color customization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Remove Ads | $5.99 | one-time |

**What reviewers like**

- ⭐ Accurate time display
- 📟 Useful for timing events
- 🕰️ Helpful for setting other clocks
- 🔍 Large, easy-to-read clock face

**What reviewers complain about**

- 💸 Subscription model for ad-free version
- 📢 Excessive advertisements
- 🔍 Small font for seconds display
- 🔀 Difficulty in displaying both analog and digital clocks simultaneously

**Reported bugs**

- Second hand occasionally runs in reverse
- Digital clock display cuts off on some devices
- Inconsistent behavior when switching between clock types

**Requested features**

- Customizable clock face options
- Ability to set widget on home screen
- Sync with system clock to automatically update time


### World Clock Time Zone Widget

[App page](https://appshunter.io/ios/app/world-clock-time-zone-widget/id912698955)

Easily check the current time and date in any location worldwide directly from your device's Notification Center. This app is ideal for international communication, travel planning, and staying connected with loved ones across different time zones.

**Highlights:** Notification Center widget for quick access, Comprehensive city database, Automatic daylight saving adjustments, Customizable clock display, Time travel feature for planning, Day/night indicator for timezones, iCloud sync for locations

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Club Monthly | $1.99 | per month |
| Monthly | $1.99 | per month |
| Monthly | $6.99 | per month |
| Premium Club - Annual | $9.99 | per year |
| Annual | $19.99 | per year |
| Annual | $29.99 | per year |
| Pro Club - Family Sharing | $29.99 | per year |
| Premium Club Lifetime | $49.99 | one-time |
| Lifetime | $59.99 | one-time |
| Lifetime | $99.99 | one-time |

**What reviewers like**

- 🚀 Simple and functional
- 🚀 Time everywhere
- 🚀 Invaluable for dealing with timezones
- 👍 Used by everyone
- 👍 Excellent customer service

**What reviewers complain about**

- 🐛 Time is wrong for some cities
- 🐛 Widget doesn't work properly
- 🐛 Buggy
- 💰 Requires subscription for full features
- 💰 Misleading about free features

**Reported bugs**

- Time zone display issues
- Widget freezing and not updating
- Inability to edit or remove time zones

**Requested features**

- Display date along with time
- Ability to have 24-hour and 12-hour clocks side-by-side
- Customizable widget layout and colors
- Notification alerts for time zone changes


## Frequently asked questions

### Is Atomic Clock PRO free?

Atomic Clock PRO is free to download, with in-app purchases available.

### Is World Clock Time Zone Widget free?

World Clock Time Zone Widget is free to download, with in-app purchases available.

### Which has better reviews, Atomic Clock PRO or World Clock Time Zone Widget?

Atomic Clock PRO and World Clock Time Zone Widget are both rated 4.7 out of 5 on the App Store, from 10K and 31K ratings respectively.

### Do Atomic Clock PRO or World Clock Time Zone Widget have ads?

Atomic Clock PRO shows ads; World Clock Time Zone Widget does not.

### Which is updated more often, Atomic Clock PRO or World Clock Time Zone Widget?

Atomic Clock PRO ships an update every 3 months, and World Clock Time Zone Widget fortnightly. Most recently, Atomic Clock PRO was updated on October 13, 2026 and World Clock Time Zone Widget on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*