# Atomic Clock PRO vs Digital LED Clock

The clearest difference is price: Atomic Clock PRO at Free against Digital LED Clock's $1.99. Atomic Clock PRO also leads on rating (4.7 vs 3.0) and update cadence (every 3 months vs every 40 months). Digital LED Clock's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Atomic Clock PRO is free to download; Digital LED Clock costs $1.99 up front. Atomic Clock PRO sells 2 in-app purchases, starting at $1.99 per month. Digital LED Clock asks for nothing beyond the download.

Atomic Clock PRO holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Atomic Clock PRO has 10K ratings behind it against 2, 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 50% of Digital LED Clock's.

Atomic Clock PRO ships an update every 3 months, Digital LED Clock every 40 months. The most recent releases landed on September 23, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | Digital LED Clock |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/digital-led-clock/id1471761692/reviews) |
| Number of ratings | **10K** | 2 |
| Positive reviews | **72.7% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 40 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 6 MB | 8 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) | [Kei Suefuji](https://appshunter.io/developer/1388335881) |

## 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


### Digital LED Clock

[App page](https://appshunter.io/ios/app/digital-led-clock/id1471761692)

This utility app displays the current time in a dot matrix LED style. It offers both vertical and horizontal orientations, 24-hour or AM/PM format, and customizable color options. The interface is minimalist, with settings accessed by double-tapping the screen.

**Highlights:** Dot matrix LED time display, Vertical and horizontal orientation, 24-hour or AM/PM format, 10 color options, Disable auto-lock functionality, Double-tap to access settings

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

**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 Digital LED Clock free?

Digital LED Clock costs $1.99, with no in-app purchases.

### Which has better reviews, Atomic Clock PRO or Digital LED Clock?

Atomic Clock PRO is rated higher. Atomic Clock PRO averages 4.7 out of 5 from 10K ratings, while Digital LED Clock averages 3.0 from 2 ratings.

### Do Atomic Clock PRO or Digital LED Clock have ads?

Atomic Clock PRO shows ads; Digital LED Clock does not.

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

Atomic Clock PRO ships an update every 3 months, and Digital LED Clock every 40 months. Most recently, Atomic Clock PRO was updated on September 23, 2026 and Digital LED Clock on August 15, 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.*