AtomicClock: NTP Time

AtomicClock: NTP Time

Precision Clock, UTC Reference

5.5K ratings
241 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • July 25, 2018
  • September 19, 2026

Features

AtomicClock: NTP Time screenshot #1 for iPhone
AtomicClock: NTP Time screenshot #2 for iPhone
AtomicClock: NTP Time screenshot #3 for iPhone
AtomicClock: NTP Time screenshot #4 for iPhone
AtomicClock: NTP Time screenshot #5 for iPhone
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About

This app displays the exact current time synchronized with NTP servers, offering a customizable clock view for precise time checks. It's ideal for setting watches, verifying timestamps, or comparing local and network time.

✓Precise time from NTP servers
✓Customizable clock faces
✓Select or add time servers
✓Local and UTC views
✓12/24 hour modes
✓Customizable time format
✓Acoustic ticking
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What users say

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What's New in AtomicClock

3.6.24

September 19, 2026

• Improved app reliability and compatibility with latest platform components • General performance and stability improvements

1

Subscriptions & In-App Purchases

$6.99

Lifetime Pro Version

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User reviews

Fraudulent ads

This app has malicious advertisements that try to get you to pay fees to restore your Apple account access. It’s a scam.

Great for exact time measurements

I need to synchronize timed observations across several different phones (observers) and this app works well.

the backbone of my time keeping

it is great to tinker with the ntp servers. lots of fun! this app is the backbone of my time keeping efforts for
my cricket league here on Bermuda

A needed reference point.

It works. No issues detected at present…

Best new Atomic Clock I found on the Internet

While the different features and options are fairly basic, this is the simplest to read, gives you the information you really need, like what time is it so it is now my go to for checking time and setting my analog and mechanical clocks and watches.

Developer apps

User experience

🐞

Reported Bugs

3 issues

Crashes on certain iOS versions

Bug

Occasional freezing of hands

Bug

Countdown timer sound not working

Bug
✨

Requested Features

5 requests

Add GMT/dual time display

Feature

Implement widget support

Feature

Add different second hand sounds

Feature

Allow setting background color to match watch

Feature

Include alarm/timer functionality

Feature

FAQ

Does AtomicClock have ads?

Yes, AtomicClock contains advertisements. These ads may sometimes diminish the clock view, as noted by some users.

What is the user sentiment for AtomicClock?

User reviews are overwhelmingly positive, with users praising its accurate time, high customizability, and ease of use. Some minor cons include occasional server connection issues and ads.

How often is AtomicClock updated?

The app was last updated on June 4, 2026, with version 3.6.22. Frequent updates indicate ongoing development and support.

What devices does AtomicClock support?

AtomicClock is available for iPhone, iPad, and iPod touch devices, making it accessible to a wide range of Apple users.

Is AtomicClock suitable for children?

AtomicClock has an age rating of 4+, indicating it is suitable for children and does not contain inappropriate content.

Can I set my own time servers in AtomicClock?

Yes, AtomicClock allows you to choose from public time servers or add your own custom server for synchronization.

Does AtomicClock change my device's system time?

No, AtomicClock displays network time for comparison and does not alter your device's system time.

What are the main benefits of using AtomicClock?

Users find AtomicClock helpful for setting watches precisely, checking timestamps, and timing important moments due to its accuracy and customizable display.