# Atomic Clock PRO vs Market Clock

The clearest difference is rating: Atomic Clock PRO at 4.7 against Market Clock's 3.7. Atomic Clock PRO also leads on ratings volume (10K vs 7). Market Clock's advantage is ads (none vs shown). On price, review sentiment, update cadence 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 Market Clock sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Atomic Clock PRO holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Atomic Clock PRO has 10K ratings behind it against 7, so its average is the more settled of the two. Written reviews split almost evenly too, at 73% and 73% positive.

Atomic Clock PRO ships an update every 3 months, Market Clock every 4 months. The most recent releases landed on October 15, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | Market Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews)** | [3.7 (7 ratings)](https://appshunter.io/ios/app/market-clock/id1418894512/reviews) |
| Number of ratings | **10K** | 7 |
| Positive reviews | **73.0% of reviews** | 72.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 4 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brachmann Online Marketing GmbH & Co. KG](https://appshunter.io/developer/682848918) | [Benjamin Smith](https://appshunter.io/developer/711074013) |

## 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


### Market Clock

[App page](https://appshunter.io/ios/app/market-clock/id1418894512)

Stay informed about global financial market trading hours and holidays. This app provides a consolidated view of market openings, closings, and upcoming events, replacing outdated physical calendars. Receive timely notifications to manage your trading strategy effectively.

**Highlights:** Global market trading hours, Holiday and event calendar, Clock, calendar, and timeline views, Customizable notifications, Support for equities, options, futures, and FX

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Market Data (1 Month) | $0.99 | per month |
| Premium Market Data (1 Year) | $9.99 | per year |


## Frequently asked questions

### Is Atomic Clock PRO free?

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

### Is Market Clock free?

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

### Which has better reviews, Atomic Clock PRO or Market Clock?

Atomic Clock PRO is rated higher. Atomic Clock PRO averages 4.7 out of 5 from 10K ratings, while Market Clock averages 3.7 from 7 ratings.

### Do Atomic Clock PRO or Market Clock have ads?

Atomic Clock PRO shows ads; Market Clock does not.

### Which is updated more often, Atomic Clock PRO or Market Clock?

Atomic Clock PRO ships an update every 3 months, and Market Clock every 4 months. Most recently, Atomic Clock PRO was updated on October 15, 2026 and Market Clock on September 9, 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.*