Comparison

Atomic Clock (Gorgy Timing) vs Atomic Clock PRO

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

Head to head
About

Atomic Clock (Gorgy Timing)

This app provides ultra-precise time by syncing with atomic time servers. It features a customizable display mimicking professional studio clocks, with advanced alarm functions and various visual themes. Designed for accuracy and usability, it's ideal for professionals and enthusiasts alike.

Highlights
  • Syncs with atomic time servers
  • Professional studio clock display
  • Customizable alarm with snooze
  • Local time / UTC mode
  • Multiple color themes
  • Night mode for dimming
  • Disabled screen auto-lock
Features
Read full description

This tool shows you the ultimate precise time of day. To achieve this, it uses a special internet time protocol to fetch the time from an atomic time server. We are proud to offer version 5 of the Gorgy Timing Atomic Clock. The program is one of the classic applications since the early days of the Apple App Store and has been continually improved based on user feedback. The Gorgy Timing Atomic Clock shows the precise time of day. To achieve this, it uses a special internet time protocol to fetch the ultimate precise time from cesium atomic clocks available on the internet, or any other time server you like. The graphical display mimics the clock display of the legendary Gorgy Timing clocks, which are used in professional radio and television studios, and we spent much effort to bring the original feeling of these wickedly expensive clocks to your iPhone. This app is used by BBC studios, astronomers, concert promoters, etc. Version 5 contains the following functions: * Universal support for all iPhone, iPad and iPod touch devices running iOS 15, iPadOS 15, watchOS 9 or higher * Optimized for the latest iOS, iPadOS and watchOS, full 64 bit support * Alarm function with snooze (touch anywhere on the screen), volume fade-in, based on weekdays * Alarm time based on seconds (not minutes) * Local time / UTC time mode * Alarm notification window instead of normal alarm sound, if app is not running or in the background * Use playlists or a manual picker selection from your own music library as alarm sounds * The alarm sound is also playing when the device is muted, or the display is switched off, and also works in AirPlay environments * Customizable time server sources * Colors: green, red, blue, yellow, white, dark green, violet, pink, orange, turquoise and hidden, with a separate color option for digits, seconds and segments * Alternative visual display of fractional seconds (1/60th sec. resolution) * 12/24 hours display * Optional second tick sound * Full landscape support (including settings dialog) * Touching the display lets the buttons and status bar fade out * Touching the display again will add the current date (in all orientations) * Disabled screen auto-lock * Options "sync at startup", "hourly", "daily", or a sync button for manual syncing * The last known time delta is used when started without sync * "Night mode", which dims the display using a slider, shows the seconds with only one dot (to prevent a hard brightness switch between second 59 and second 0), switches off the tick sound, and reduces screen updates to save battery * To minimize burn-in effects (especially on the iPhone X OLED display), the clock is doing micro movements when running longer than 5 minutes * VoiceOver support Answers to common questions: * An application can not set your device's system time, so a time sync between the atomic time and the device time is not possible. * If you want to wakeup with music, please do not exit the app before going to sleep (which would result in a local notification dialog without music in the morning), and do not lock your device. Be aware that running an application all the time, even without display, consumes battery, so please make sure that your iPhone is fully charged before you go to bed, connect it to your charger, or use the app's Night mode, which is much more energy-saving.

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/

Screenshots

Atomic Clock (Gorgy Timing)4 screens
Atomic Clock PRO4 screens

Verdict

The call

The clearest difference is price: Atomic Clock PRO at Free against Atomic Clock (Gorgy Timing)'s $1.99. Atomic Clock (Gorgy Timing)'s advantage is ads (none vs shown) and review sentiment (91% vs 73%). On rating, ratings volume, 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

Atomic Clock PRO is free to download; Atomic Clock (Gorgy Timing) costs $1.99 up front. Atomic Clock (Gorgy Timing) sells 5 one-off in-app purchases and Atomic Clock PRO sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Atomic Clock (Gorgy Timing) against 4.7 for Atomic Clock PRO. Both are backed by a comparable volume of ratings — 5K and 10K respectively. Written reviews are what separate them: 91% of Atomic Clock (Gorgy Timing)'s written reviews are positive against 73% of Atomic Clock PRO's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Atomic Clock (Gorgy Timing) versus Atomic Clock PRO: the parameters behind the verdict, then further details
ParameterAtomic Clock (Gorgy Timing)Atomic Clock PRO
Price$1.99Free — better
Rating4.8 (5K ratings) — better4.7 (10K ratings)
Positive reviews90.6% of reviews — better72.9% of reviews
Number of ratings5K10K — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size15 MB6 MB
Age rating4+4+
DeveloperCompuLab, Markus GömmelBrachmann Online Marketing GmbH & Co. KG

Customer experience

Atomic Clock (Gorgy Timing)

All ratings4,981 ratings
Positive96.5%
Neutral1.8%
Negative1.7%
Written reviews373 reviews
Positive90.6%
Neutral4.0%
Negative5.4%

Atomic Clock PRO

All ratings10,111 ratings
Positive92.3%
Neutral3.5%
Negative4.2%
Written reviews421 reviews
Positive72.9%
Neutral5.9%
Negative21.1%

Bugs and requests

Atomic Clock (Gorgy Timing)

Not enough reviews yet to summarise bugs or 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

In-app purchases

5 purchases

Atomic Clock (Gorgy Timing)

One-time5
  • Nice job$0.99
  • Good work.$2.99
  • Great app!$3.99
Show 2 more
  • Awesome idea!$8.99
  • I totally love it!$17.99
2 purchases

Atomic Clock PRO

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

Questions

Is Atomic Clock (Gorgy Timing) free?
Atomic Clock (Gorgy Timing) costs $1.99, and also offers in-app purchases.
Is Atomic Clock PRO free?
Atomic Clock PRO is free to download, with in-app purchases available.
Which has better reviews, Atomic Clock (Gorgy Timing) or Atomic Clock PRO?
Atomic Clock (Gorgy Timing) is rated higher. Atomic Clock (Gorgy Timing) averages 4.8 out of 5 from 5K ratings, while Atomic Clock PRO averages 4.7 from 10K ratings.
Do Atomic Clock (Gorgy Timing) or Atomic Clock PRO have ads?
Atomic Clock PRO shows ads; Atomic Clock (Gorgy Timing) does not.
Which is updated more often, Atomic Clock (Gorgy Timing) or Atomic Clock PRO?
Atomic Clock (Gorgy Timing) ships an update every 3 months, and Atomic Clock PRO every 3 months. Most recently, Atomic Clock (Gorgy Timing) was updated on October 13, 2026 and Atomic Clock PRO on October 11, 2026.

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