# Atomic Clock PRO vs Toolwatch

The clearest difference is rating: Atomic Clock PRO at 4.7 against Toolwatch's 3.3. Atomic Clock PRO also leads on review sentiment (73% vs 34%) and ratings volume (10K vs 459). Toolwatch's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Atomic Clock PRO sells 2 in-app purchases, starting at $1.99 per month. Toolwatch asks for nothing beyond the download.

Atomic Clock PRO holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: Atomic Clock PRO has 10K ratings behind it against 459, so its average is the more settled of the two. Written reviews point the same way: 73% of Atomic Clock PRO's written reviews are positive against 34% of Toolwatch's.

Atomic Clock PRO ships an update every 3 months, Toolwatch monthly. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | Toolwatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews)** | [3.3 (459 ratings)](https://appshunter.io/ios/app/toolwatch-watch-accuracy-app/id1105636950/reviews) |
| Number of ratings | **10K** | 459 |
| Positive reviews | **72.7% of reviews** | 33.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 14 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brachmann Online Marketing GmbH & Co. KG](https://appshunter.io/developer/682848918) | [Mathieu Nayrolles](https://appshunter.io/developer/1105636949) |

## 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


### Toolwatch

[App page](https://appshunter.io/ios/app/toolwatch-watch-accuracy-app/id1105636950)

Measure and track the accuracy of your mechanical watches. Get personalized tips for watch care and determine if your timepiece needs servicing. Discover how your watch performs compared to others.

**Highlights:** Measure watch accuracy, Track watch performance, Personalized watch care tips, Identify need for servicing, Compare watch accuracy

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atomic Clock PRO free?

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

### Is Toolwatch free?

Toolwatch is free to download, with no in-app purchases.

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

Atomic Clock PRO is rated higher. Atomic Clock PRO averages 4.7 out of 5 from 10K ratings, while Toolwatch averages 3.3 from 459 ratings.

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

Atomic Clock PRO shows ads; Toolwatch does not.

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

Atomic Clock PRO ships an update every 3 months, and Toolwatch monthly. Most recently, Atomic Clock PRO was updated on September 26, 2026 and Toolwatch on September 17, 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.*