Comparison

Atomic Clock PRO vs Huge Digital Clock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Atomic Clock PRO

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
Read full description

Get accurate time on your iPhone and iPad by syncing with an official atomic clock time server. Download now for free! If you want exact time, a precise time reference, or an easy-to-read clock display, this app is designed for that. It automatically recognizes your time zone, lets you use one of your own photos as the background, and lets you switch between a digital display and a classic analog clock with a simple swipe. It is ideal as a personalized desk clock, a reliable travel companion, an everyday reference clock, or when you need exact time to set a mechanical watch accurately. Overview: - Accurate and precise time synced from an official atomic clock time server - Automatically recognizes your time zone and shows the current local time - Choose digital, analog, or combined analog and digital clock displays - Swipe to switch between clock displays - Resize the digital clock for a larger or smaller display - Includes time (hours, minutes, and seconds), date, and day of the week (optional) - Optional sound every second or every minute - Change clock and background colors - Use your own photos as background images - Choose atomic clock sync or your device's system clock - Option to keep the screen awake while the app is open - Works in portrait and landscape mode - For iPhone and iPad Helpful for: - A personalized desk clock at home or at work - Getting the correct local time while traveling - Setting a mechanical watch accurately - A clear reference clock when you want accurate, easy-to-read time PLEASE NOTE: You can switch between the analog and digital clock by swiping left or right across the clock. Disclaimer: Please note that whilst all reasonable care has been taken to make this application as accurate as possible we can not guarantee 100% accuracy. Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Huge Digital Clock

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
Read full description

Introducing Talking Clock: The Ultimate Large Digital Display for your Desk & Home! Elevate your space with the Huge Digital Clock, the premium choice for a bold, aesthetic timepiece on your iPhone or iPad. Whether you’re looking to enhance your desk setup, need a high-visibility shop clock, or want a stylish nightstand companion, this app transforms your device into a captivating digital showcase. Smart Timekeeping & Utility Introducing Talking Clock: Perfect for multitasking! Hear the time announced at your preferred intervals so you can stay on track without looking away from your work. Massive Digital Display: A clean, screen clock digital interface that is easily readable from a distance. Ideal for offices, gyms, or kitchens. Precision Seconds: Toggle a high-precision seconds display for tasks that require exact timing. Always-On Mode: Turn your iPad into a dedicated desktop clock or a professional-grade screensaver that never sleeps. Aesthetic & Customization Vibrant Themes: Choose from a spectrum of neon colors and modern digital fonts to match your room’s decor or your gaming rig's glow. Nightstand Mode: A dimmable, low-light interface designed to be the perfect bedside companion without the harsh glare. Clock Widgets: Add a sleek, oversized clock widget to your home screen for time-at-a-glance convenience. Beyond the Basic Alarm Productivity Focus: Use it as a focus tool for deep work sessions or as a high-visibility timer. Reliable Back-up: While it’s a stunning display, it still packs a powerful alarm system for when you absolutely need to be on time. Reloj Experience: A versatile, multi-language interface (including Spanish support) for a global lifestyle. Why settle for a tiny status bar? Let time command attention with the most versatile digital clock on the App Store. Privacy Policy : https://kalagato.ai/huge-digital-clock-privacy-policy Terms of Use : https://hdc-bb.kalagato.co/hdc/Terms%20of%20Use%20HDC.html

Screenshots

Atomic Clock PRO4 screens
Huge Digital Clock4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Atomic Clock PRO versus Huge Digital Clock: the parameters behind the verdict, then further details
ParameterAtomic Clock PROHuge Digital Clock
PriceFreeFree
Rating4.7 (10K ratings) — better4.1 (80 ratings)
Positive reviews72.9% of reviews — better56.0% of reviews
Number of ratings10K — better80
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size6 MB64 MB
Age rating4+4+
DeveloperBrachmann Online Marketing GmbH & Co. KGHUMAN DATA SG PTE. LTD.

Customer experience

Atomic Clock PRO

All ratings10,230 ratings
Positive92.3%
Neutral3.5%
Negative4.2%
Written reviews425 reviews
Positive72.9%
Neutral5.9%
Negative21.2%

Huge Digital Clock

All ratings80 ratings
Positive76.3%
Neutral2.5%
Negative21.3%
Written reviews50 reviews
Positive56.0%
Neutral8.0%
Negative36.0%

User reviews

Atomic Clock PRO

From 10K App Store ratings

What we love

  • ⭐ Accurate time display
  • 📟 Useful for timing events
  • 🕰️ Helpful for setting other clocks
  • 🔍 Large, easy-to-read clock face

Room to improve

  • 💸 Subscription model for ad-free version
  • 📢 Excessive advertisements
  • 🔍 Small font for seconds display
  • 🔀 Difficulty in displaying both analog and digital clocks simultaneously

Huge Digital Clock

From 80 App Store ratings

What we love

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

Room to improve

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

Bugs and requests

Atomic Clock PRO

Reported bugs

3 issues
  • Second hand occasionally runs in reverse
  • Digital clock display cuts off on some devices
  • Inconsistent behavior when switching between clock types

Requested features

3 requests
  • Customizable clock face options
  • Ability to set widget on home screen
  • Sync with system clock to automatically update time

Huge Digital Clock

Reported bugs

13 issues
  • Unclosable Home Depot ad
  • Paid upgrade lost custom defaults
  • App displays wrong date
  • App shows black screen
  • App not working on iPad Air 2
Show 8 more
  • White characters on black background now black
  • Free mode resets itself
  • No alarms in new version
  • Widget shows 12-hour instead of 24-hour
  • Widget does not change color
  • Swipe up bar is always there and bright
  • App not working after update
  • Black screen on iOS 17.3.1

Requested features

9 requests
  • Add weather information
  • Add timer for night mode
  • Add alarm function
  • Add sheep animation to help sleep
  • Remove gear icon after seconds
Show 4 more
  • Add temperature display
  • Add pixel style font
  • Add orange color option
  • Add Voice Over support for settings

In-app purchases

2 purchases

Atomic Clock PRO

Subscriptions1
  • Premium$1.991 Month
One-time1
  • Remove Ads$5.99
5 purchases

Huge Digital Clock

Subscriptions5
  • Monthly Subscription$4.991 Month
  • 1 Year Basic Plan3 Days trial$7.991 Year
  • Yearly Subscription$14.991 Year
Show 2 more
  • Yearly Subscription3 Days trial$15.991 Year
  • One Year | Ad Free Access$19.991 Year

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.

Other comparisons