Best Nist Clock Apps

250+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated November 2026

If you already know AtomicClock, this is the deeper bench. 250+ nist clock apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of November 2026.

Compare top Nist Clock Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1AtomicClock: NTP TimeAtomicClock: NTP TimeFree4.8β˜… (5.6K)YesYesNov 2026
2Atomic Clock (Gorgy Timing)Atomic Clock (Gorgy Timing)$1.994.8β˜… (5K)NoYesNov 2026
3Atomic Clock: Exact TimeAtomic Clock: Exact TimeFree3.0β˜… (2)NoNoOct 2026
4The Clocks: Alarm, World ClockThe Clocks: Alarm, World ClockFree4.5β˜… (22K)YesYesNov 2026
5Clock SetterClock SetterFree4.6β˜… (5)NoNoOct 2026
6Atomic Clock PROAtomic Clock PROFree4.7β˜… (10K)YesYesNov 2026
7Wide ClockWide ClockFreeβ€”NoNoSep 2026
8Night ClockNight Clock$1.994.0β˜… (1)NoNoOct 2026

Top Picks for Nist Clock

AtomicClock: NTP Time#1

AtomicClock: NTP Time by Timo Partl

Precision Clock, UTC Reference
Editor's Choice
πŸ”§ Utilities
4.8😊(5.6K ratings)
FreeAdsIn-App Purchases
AtomicClock: NTP Time screenshot 1
AtomicClock: NTP Time screenshot 2
AtomicClock: NTP Time screenshot 3
AtomicClock: NTP Time screenshot 4
AtomicClock: NTP Time screenshot 5

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.

What We Love

  • πŸš€ Accurate time
  • πŸ‘ Highly customizable
  • πŸš€ Precise to the second
  • πŸ‘ Easy to use
  • πŸ‘ Helpful for setting watches
  • πŸ‘ Great for hobbyists and professionals
  • πŸ‘ Excellent time standard for watches
  • πŸ‘ Simple and straightforward

Room to Improve

  • πŸ› Server connection issues
  • πŸ” Limited time zone options
  • πŸ’° Ads diminish clock view
  • πŸ” Lacks some advanced features
  • πŸ” Redundant for some users
Atomic Clock (Gorgy Timing)#2
4.8(5K ratings)
$1.99In-App Purchases
Atomic Clock (Gorgy Timing) screenshot 1
Atomic Clock (Gorgy Timing) screenshot 2
Atomic Clock (Gorgy Timing) screenshot 3
Atomic Clock (Gorgy Timing) screenshot 4
Atomic Clock (Gorgy Timing) screenshot 5

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.

More Nist Clock apps to explore

FAQ about Nist Clock

What are the best nist clock apps for iPhone?
AtomicClock: NTP Time tops our nist clock apps ranking as of November 2026, with a 4.8-star average from 5.6K App Store ratings, and it's free to download.
Yes β€” 18 of the top nist clock apps we rank are free to download, including AtomicClock: NTP Time and Atomic Clock: Exact Time.
AtomicClock: NTP Time shows ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ nist clock apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.