# Atomic Clock PRO vs MatchBox Glass

The clearest difference is review sentiment: Atomic Clock PRO at 73% against MatchBox Glass's 0%. Atomic Clock PRO also leads on rating (4.7 vs 2.1) and ratings volume (10K vs 7). MatchBox Glass's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, update cadence 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. MatchBox Glass asks for nothing beyond the download.

Atomic Clock PRO holds the better App Store score, 4.7 against 2.1. 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 point the same way: 73% of Atomic Clock PRO's written reviews are positive against 0% of MatchBox Glass's.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 25, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | MatchBox Glass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews)** | [2.1 (7 ratings)](https://appshunter.io/ios/app/matchbox-glass/id1503016890/reviews) |
| Number of ratings | **10K** | 7 |
| Positive reviews | **72.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 6 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brachmann Online Marketing GmbH & Co. KG](https://appshunter.io/developer/682848918) | [Hitomi Ltd](https://appshunter.io/developer/1503016889) |

## 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


### MatchBox Glass

[App page](https://appshunter.io/ios/app/matchbox-glass/id1503016890)

This tool precisely measures lip-sync and video timing alignment for broadcast professionals. It helps ensure accurate audio-visual synchronization from camera to studio equipment.

**Highlights:** Precise lip-sync measurement, Video to video timing alignment, Latency measurement, AV sync from camera/mic to analyzer, Supports remote production and news gathering

**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 MatchBox Glass free?

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

### Which has better reviews, Atomic Clock PRO or MatchBox Glass?

Atomic Clock PRO is rated higher. Atomic Clock PRO averages 4.7 out of 5 from 10K ratings, while MatchBox Glass averages 2.1 from 7 ratings.

### Do Atomic Clock PRO or MatchBox Glass have ads?

Atomic Clock PRO shows ads; MatchBox Glass does not.

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

Atomic Clock PRO ships an update every 3 months, and MatchBox Glass every 3 months. Most recently, Atomic Clock PRO was updated on September 25, 2026 and MatchBox Glass on June 4, 2026.

---

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