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iOS 3 can’t install from Safari. You can still download the IPA file, but you’re on your own after that.
Atomic Clock (Gorgy Timing)
 This app is designed for both iPhone and iPad
  • Price
    $1.99
  • CategoryUtilities
  • First releasedNovember 7, 2008
  • Versions8 archived
  • Installable8 of 8
  • AvailabilityStill on the App Store
  • SellerCompuLab, Markus Gömmel

RequirementsCompatible with iPhone, iPod touch, and iPad. Requires iOS 2.0 or later.

Customer Ratings

As of December 11, 2024
     
4,627 Ratings

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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 12, iPadOS 12, watchOS 4 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.

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To install apps directly onto this device, it must be jailbroken with AppSync installed.
3.02
Requires iOS 2.0+
Non-Retina
4.2 MB Install Download
3.03
Requires iOS 2.0+
Non-Retina
4.2 MB Install Download
4.11
Requires iOS 2.0+
Retina (iPhone only)
5.2 MB Install Download
4.13
Requires iOS 2.0+
Retina (iPhone only)
5.2 MB Install Download
4.15
Requires iOS 2.0+
Retina (iPhone only)
5.2 MB Install Download 1 more copy ›
Atomic Clock 4.15.4711.ipa · 5.2 MB Install Download
4.20
Requires iOS 3.0+
Retina (iPhone only)
5.3 MB Install Download
4.21
Requires iOS 3.0+
Retina (iPhone only)
5.3 MB Install Download
4.31
Requires iOS 3.1+
Retina (iPhone only)
5.4 MB Install Download

Chart History

Top Paid · Utilities · iPad View chart ›
Peaked at #21 (June 26, 2021) · 5 archived captures · Jun 2021 – Aug 2021

Ratings Over Time

DateVersionRatingRatingsPrice
December 13, 2019 — ★ 4.8 3,128 $1.99
November 30, 2022 5.42 ★ 4.8 4,233 $1.99
December 4, 2022 5.42 ★ 4.8 4,234 $1.99
December 11, 2023 5.43 ★ 4.9 4,455 $1.99
December 2, 2024 5.50 ★ 4.8 4,624 $1.99
December 11, 2024 5.50 ★ 4.8 4,627 $1.99

From archived App Store listing data, captured by the Wayback Machine.

Archived Reviews

8 of 25
Accept no substitutes!
     
by Nerds Limited® · October 15, 2025

If you search for Atomic Clock on the App Store, everything you find but this is mostly junk. iOS 26 update: YEP! Still the best! With configurable NTP server, cross platform support, and perfect synchronicity; it’s worth every dime.

Great Clock!
     
by Mog22wai · February 15, 2026

Does exactly what an atomic clock should do. Since I can’t call time anymore, this is the next best thing.

Stopped working
     
by zyhu_ · March 7, 2024

Stopped being woken up by this alarm a while ago, just sat down and set it to the next minute, and it still didn’t go off. Waste of money, un functioning app. Fire your software developer.

Love this app
     
by dwmetzler · March 11, 2024

App is always there to set my watch by, couldn’t ask for more.

Still the BEST
     
by iSnobbie™ · March 9, 2025

One of OG Apps here in the Apple AppStore and it’s still the best. I’ll be making a donation! I hope this app never goes away!

iOS 18 please update
     
by Glennwsmith · September 22, 2024

When are you going to update your software?

Love It
     
by Bilbotinos · October 2, 2024

My go to app for atomic time. I use it for setting my watches and have done so for years.

1 out of 3!…
     
by StarshaDog · December 29, 2025

One of my top three favorite atomic clock apps!!!

Period reviews recovered from Apple's customer-review feeds via the Wayback Machine.

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