Atomic Clock – Precision Time

Atomic Clock – Precision Time

NTP Time & Milliseconds

7 ratings
4 reviews
Free
In-App Purchases

Details

Released
March 31, 2026
Updated
November 2, 2026

Features

Atomic Clock – Precision Time screenshot #1 for iPhone
Atomic Clock – Precision Time screenshot #2 for iPhone
Atomic Clock – Precision Time screenshot #3 for iPhone
Atomic Clock – Precision Time screenshot #4 for iPhone
Atomic Clock – Precision Time screenshot #5 for iPhone
Atomic Clock – Precision Time screenshot #6 for iPhone
iphone
iphoneDuo
🖼️Get Icon
Icons↘︎

About

This utility provides highly accurate time synchronization using NTP. View precise time with millisecond detail, compare your device clock to network time, and customize display styles. It's privacy-focused with no tracking or analytics.

✓NTP-based time synchronization
✓Millisecond detail
✓Local time and UTC display
✓Offset and latency indicators
✓Automatic sync
✓Eight clock styles
✓Customizable colors
✓Privacy-focused
Show original description

What's New in Atomic Clock

1.0.4

November 2, 2026

Added support for iPhone Duo. This update fixes bugs and improves performance for a smoother, more reliable experience.

2

Subscriptions & In-App Purchases

AtomicClock Pro Monthly

Unlock Pro features with monthly access.

$5.991 Month
7 Days trial
How to cancel Atomic Clock subscription ⁉️

User reviews

Best Atomic Clock

Very accurate atomic clock app with fast network sync and clean design.I really like the millisecond precision and different clock styles.Easy to use and worth downloading.

Response from developer

Thank you for your wonderful review of Atomic Clock – Precision Time. We’re very happy to hear that you enjoy the accurate atomic clock, fast network time sync, clean design, and millisecond precision. We built this app for users who need a precise time app that is simple, reliable, and easy to use every day. Your support means a lot to us, and we’ll continue improving Atomic Clock with better precision time features, smoother sync performance, and an even better user experience.

SCREEN LOCK!!!

This does NOT prevent SCREEN LOCK from happening. It NEEDS to be able to do SO!!! Thanks!!

Response from developer

Thanks for the feedback! You’re absolutely right — preventing screen lock can be very useful while using the app. We’re adding a “Keep Screen Awake” option in the next update so the screen will stay on while the app is open. Appreciate the suggestion!

Beautiful and Precise Time App

Great atomic clock app!It syncs quickly with network time servers and shows very accurate.

Response from developer

Thank you so much for your wonderful feedback! We’re glad you like the Atomic Clock – Precision Time app. Our goal is to provide the most accurate atomic clock time by syncing with reliable network time servers. Precise and stable time synchronization is very important to us, and we’re happy to hear that the app works quickly and accurately for you. If you enjoy using this atomic clock with millisecond precision, please consider sharing it with others who need a reliable accurate time app. Thanks again for your support!

Super Accurate Atomic Clock

This is one of the best atomic clock I’ve tried.The time sync is extremely precise and the milliseconds display is very useful.

Response from developer

Thank you for your great review! We’re thrilled that you find the Atomic Clock – Precision Time app extremely accurate. The app is designed to deliver precise atomic time with fast network time synchronization and a clear millisecond display. Your feedback motivates us to keep improving this high-precision atomic clock app so users can always access reliable and accurate time. Thanks for using Atomic Clock – Precision Time!

Developer apps

FAQ

What is Atomic Clock's primary function?

Atomic Clock is a utility app designed for highly accurate time synchronization using NTP (Network Time Protocol). It allows users to view precise time with millisecond-level detail and compare their device's clock with network time.

Does Atomic Clock offer different display styles?

Yes, Atomic Clock features eight distinct clock styles including circular dots, analog, minimalist, binary, neon glow, flip clock, Nixie tubes, and orbital dial. Users can also customize accent colors and multi-color displays.

Is Atomic Clock free to use?

The base version of Atomic Clock is free to download and use. It also offers optional subscription plans, 'AtomicClock Pro Monthly', with free trials available.

What are the subscription options for Atomic Clock Pro?

Atomic Clock Pro offers monthly and yearly subscription plans. The monthly plan is $5.99/P1M and the yearly plan is $19.99/P1Y, both including a 7-day free trial.

Does Atomic Clock collect user data or track activity?

No, Atomic Clock is privacy-focused and does not require an account, collect analytics, or engage in tracking. All user data is kept private.

On which devices is Atomic Clock supported?

Currently, Atomic Clock is supported on iPhone devices. It was last updated on November 2, 2026, with version 1.0.4.

How often is Atomic Clock updated?

The app was last updated on November 2, 2026, indicating active development. Users can expect regular updates to maintain performance and add features.

What is the age rating for Atomic Clock?

Atomic Clock has an age rating of 4+, making it suitable for a wide range of users. This rating suggests it contains no mature content.