Comparison

Atomic Clock PRO vs ClockDisplay

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

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
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

ClockDisplay

Transform your iPhone or iPad into a beautiful, aesthetic digital clock with customizable wallpapers. Displays time, date, and battery status with large, easy-to-read fonts. Offers a free version with premium subscription options for enhanced features.

Highlights
  • Digital clock wallpaper
  • Customizable size and color
  • Displays time, date, and battery
  • Over 200 clock display wallpapers
  • Use personal photos as background
  • Full screen time display
  • Large clock font
Features
Read full description

Download our beautiful & aesthetic wallpaper for your iPhone or iPad now! ClockDisplay is a very dreamy digital clock wallpaper that displays the current time in digital clock format, date, and battery status with beautiful HD and 4K Wallpapers that are carefully selected to highlight your Retina Display screen. Use our app to turn your phone into a stunning clock on the nightstand! ClockDisplay is a perfect app if you enjoy beautiful wallpapers that highlight iPhone or iPad’s Retina Display capability. There are a lot of Clock app, but is there any app that is as beautiful as ours? You can see the amazing background as well as the time. It’s also very customizable so everyone can surely find settings and wallpapers that they like. We use HUGE font to make sure everyone can read the display, especially the time, even if you don’t wear your glasses and just wake up. We want to make sure you can easily see the time even if you wake up suddenly at midnight. === Features of ClockDisplay - Time Wallpaper: === - Download and use our time wallpaper for FREE! - Enjoy more than 8 main digital clock wallpaper categories. - More than 200 stunning clock display wallpapers - Turn your iOS devices into a clock on the night stand. - Customize clock size, color, etc. - Show Time, Date, and Battery level. - Use photo as background for the clock. - Automatically unlock (the screen never goes to sleep when the app is launched) - Display time in Full Screen - HUGE Clock font We work hard to make sure our app will be the best clock wallpaper on the Appstore. With so many cool features and options, we hope we fulfill your needs for aesthetics wallpapers and appeal to people who need great HD live wallpapers and themes. Downloading and using ClockDisplay is FREE! Try it now and you will surely fall in love with our app on the first try. About Dream Digital Wallpaper Clock Premium Member:Although you can use our app for free, you can subscribe to become a premium member. If you want to access more pro features then we offer 3 auto-renewing subscription options on either a 1, 3 or 12 month basis. Payment will be charged to your credit card through your iTunes account at confirmation of purchase. Subscription renews automatically unless cancelled at least 24 hours prior to the end of the subscription period. Subscriptions can be managed and auto-renewal turned off in Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term. Your account will be charged for renewal within 24-hours prior to the end of the current period, for the price indicated above. Using and subscribing to our subscription means that you’ve read and agreed to our Terms of Use as linked below: Terms of Use: https://www.privacypolicies.com/terms/view/68237bda8beeae140d2d63c47874716a If you have any issue with using our app or with your subscription, please feel free to email us.We will get back to you and address the issue as soon as possible. Rate and review our app, please! We are an indie app developer and we need all the support we can get from our users.If you like our app, please recommend ClockDisplay to your friends and family.They can enjoy shiny new Clock Display on their nightstand and you will help us grow!

Screenshots

Atomic Clock PRO4 screens
ClockDisplay4 screens

Verdict

The call

The clearest difference is rating: Atomic Clock PRO at 4.7 against ClockDisplay's 3.5. Atomic Clock PRO also leads on ratings volume (10K vs 6). ClockDisplay's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.6). On price, review sentiment, update cadence and in-app purchases 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 ClockDisplay sells 4 in-app purchases, starting at $2.99 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 3.5. That said, the two scores are not equally well evidenced: Atomic Clock PRO has 10K ratings behind it against 6, 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 67% of ClockDisplay's.

UpkeepUpdate frequency

Atomic Clock PRO ships an update every 3 months, ClockDisplay every 4 months. The most recent releases landed on September 26, 2026 and June 1, 2026 respectively.

Scorecard4 real differences · 6 level
Atomic Clock PRO versus ClockDisplay: the parameters behind the verdict, then further details
ParameterAtomic Clock PROClockDisplay
PriceFreeFree
Rating4.7 (10K ratings) — better3.5 (6 ratings)
Positive reviews72.7% of reviews — better66.7% of reviews
Number of ratings10K — better6
Update frequencyEvery 3 months — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size6 MB17 MB
Age rating4+4+
DeveloperBrachmann Online Marketing GmbH & Co. KGAbdulla Yasin

Customer experience

Atomic Clock PRO

All ratings10,111 ratings
Positive92.3%
Neutral3.5%
Negative4.2%
Written reviews421 reviews
Positive72.7%
Neutral6.2%
Negative21.1%

ClockDisplay

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

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

ClockDisplay

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Atomic Clock PRO

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

ClockDisplay

Subscriptions3
  • One Month Subscription$2.991 Month
  • Three Month Subscription$8.993 Months
  • One Year Subscription$17.991 Year
One-time1
  • Life Time Purchasing$24.99

Questions

Is Atomic Clock PRO free?
Atomic Clock PRO is free to download, with in-app purchases available.
Is ClockDisplay free?
ClockDisplay is free to download, with in-app purchases available.
Which has better reviews, Atomic Clock PRO or ClockDisplay?
Atomic Clock PRO is rated higher. Atomic Clock PRO averages 4.7 out of 5 from 10K ratings, while ClockDisplay averages 3.5 from 6 ratings.
Do Atomic Clock PRO or ClockDisplay have ads?
Atomic Clock PRO shows ads; ClockDisplay does not.
Which is updated more often, Atomic Clock PRO or ClockDisplay?
Atomic Clock PRO ships an update every 3 months, and ClockDisplay every 4 months. Most recently, Atomic Clock PRO was updated on September 26, 2026 and ClockDisplay on June 1, 2026.

Other comparisons