# Atomic Clock PRO vs Huge Digital Clock

The clearest difference is rating: Atomic Clock PRO at 4.7 against Huge Digital Clock's 4.1. Atomic Clock PRO also leads on ratings volume (10K vs 80) and review sentiment (73% vs 56%). Huge Digital Clock's advantage is update cadence (every 5 weeks vs every 4 months). On price, ads, in-app purchases and monetization model 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 Huge Digital Clock sells 5 in-app purchases, starting at $4.99 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 4.1. That said, the two scores are not equally well evidenced: Atomic Clock PRO has 10K ratings behind it against 80, 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 56% of Huge Digital Clock's.

Atomic Clock PRO ships an update every 4 months, Huge Digital Clock every 5 weeks. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Atomic Clock PRO | Huge Digital Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (10K ratings)](https://appshunter.io/ios/app/atomic-clock-pro/id899090224/reviews)** | [4.1 (80 ratings)](https://appshunter.io/ios/app/huge-digital-clock-bed-side/id1515003825/reviews) |
| Number of ratings | **10K** | 80 |
| Positive reviews | **72.9% of reviews** | 56.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 6 MB | 64 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brachmann Online Marketing GmbH & Co. KG](https://appshunter.io/developer/682848918) | [HUMAN DATA SG PTE. LTD.](https://appshunter.io/developer/1619123351) |

## What reviewers say

### Atomic Clock PRO

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

This app provides highly accurate time by syncing with official atomic clock servers. Customize your display with digital or analog views, personal backgrounds, and adjustable sizes. It's perfect for precise timekeeping, travel, or as a personalized desk clock.

**Highlights:** Atomic clock time synchronization, Digital and analog display options, Customizable backgrounds, Adjustable clock size, Automatic time zone recognition, Screen always on option

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


### Huge Digital Clock

[App page](https://appshunter.io/ios/app/huge-digital-clock-bed-side/id1515003825)

This app transforms your device into a large, customizable digital clock. It offers a high-visibility display, spoken time announcements, and various aesthetic themes. Ideal for desks, nightstands, or any space needing a clear, stylish timepiece.

**Highlights:** Massive digital display, Spoken time announcements, Vibrant customizable themes, Nightstand mode with dimming, Always-on display option, Home screen widgets, Precision seconds display

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| 1 Year Basic Plan | $7.99 | per year |
| Yearly Subscription | $14.99 | per year |
| Yearly Subscription | $15.99 | per year |
| One Year \| Ad Free Access | $19.99 | per year |

**What reviewers like**

- 👍 Great for ADHD/lateness
- 🎨 Customizable colors/fonts
- 🕰️ Beautiful clock display
- 👀 Large display for visibility
- 📱 Works on multiple devices

**What reviewers complain about**

- 🚫 Unclosable ads
- 💸 Paid upgrade lost features
- ⏳ Requires app to be loaded
- 📅 Incorrect date displayed
- ⚫ Black screen issue

**Reported bugs**

- Unclosable Home Depot ad
- Paid upgrade lost custom defaults
- App displays wrong date
- App shows black screen
- App not working on iPad Air 2

**Requested features**

- Add weather information
- Add timer for night mode
- Add alarm function
- Add sheep animation to help sleep
- Remove gear icon after seconds


## Frequently asked questions

### Is Atomic Clock PRO free?

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

### Is Huge Digital Clock free?

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

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

Atomic Clock PRO is rated higher. Atomic Clock PRO averages 4.7 out of 5 from 10K ratings, while Huge Digital Clock averages 4.1 from 80 ratings.

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

Both Atomic Clock PRO and Huge Digital Clock show ads.

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

Atomic Clock PRO ships an update every 4 months, and Huge Digital Clock every 5 weeks. Most recently, Atomic Clock PRO was updated on November 10, 2026 and Huge Digital Clock on November 7, 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.*