Best Exact Time Clock Apps

250+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated September 2026

If you already know Flip Clock, this is the deeper bench. 250+ exact time clock apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Exact Time Clock Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Flip Clock:Digital Desk WidgetFlip Clock:Digital Desk WidgetFree4.6★ (69K)YesYesSep 2026
2AtomicClock: NTP TimeAtomicClock: NTP TimeFree4.8★ (5.5K)YesYesSep 2026
3Atomic Clock: Exact TimeAtomic Clock: Exact TimeFreeNoNoSep 2026
4Exact SecondsExact SecondsFree5.0★ (1)NoNoJul 2026
5ExakTime Mobile–Time Clock AppExakTime Mobile–Time Clock AppFree2.8★ (273)NoNoAug 2026
6DClock - Digital Flip ClockDClock - Digital Flip ClockFree4.6★ (7.9K)YesYesSep 2026
7Atomic Clock PROAtomic Clock PROFree4.7★ (10K)YesYesSep 2026
8Real-Time Atomic ClockReal-Time Atomic Clock$2.99NoNoJun 2026

Top Picks for Exact Time Clock

Flip Clock:Digital Desk Widget#1

Flip Clock:Digital Desk Widget by 翠玲 施

StandBy Lock Screen & Pomodoro
Editor's Choice
🔧 Utilities
4.6😊(69K ratings)
FreeAdsIn-App Purchases
Flip Clock:Digital Desk Widget screenshot 1
Flip Clock:Digital Desk Widget screenshot 2
Flip Clock:Digital Desk Widget screenshot 3
Flip Clock:Digital Desk Widget screenshot 4
Flip Clock:Digital Desk Widget screenshot 5
Flip Clock:Digital Desk Widget screenshot 6

This app provides a classic digital clock widget for your device's home, lock, and standby screens. It offers features like displaying seconds, a calendar, customizable themes, and various timekeeping tools including alarms, timers, and stopwatches. It can also function as a screensaver when charging.

What We Love

  • 👍 Simple and effective
  • 🎨 Aesthetic design
  • ⏱️ Useful timer and alarm features
  • 🔍 Highly visible and readable clock
  • 🤩 Great for productivity and focus

Room to Improve

  • 🔍 Limited customization options
  • 🔋 Battery drain issues
  • 📢 Excessive ads
  • 🔒 Unreliable unlock/restore purchases
  • 🐛 Bugs and glitches
AtomicClock: NTP Time#2

AtomicClock: NTP Time by Timo Partl

Precision Clock, UTC Reference
Strong Contender
🔧 Utilities
4.8😊(5.5K 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

  • 🚀 Accurate time
  • 👍 Highly customizable
  • 🚀 Precise to the second
  • 👍 Easy to use
  • 👍 Helpful for setting watches
  • 👍 Great for hobbyists and professionals
  • 👍 Excellent time standard for watches
  • 👍 Simple and straightforward

Room to Improve

  • 🐛 Server connection issues
  • 🔍 Limited time zone options
  • 💰 Ads diminish clock view
  • 🔍 Lacks some advanced features
  • 🔍 Redundant for some users

More Exact Time Clock apps to explore

FAQ about Exact Time Clock

What are the best exact time clock apps for iPhone?
Flip Clock:Digital Desk Widget tops our exact time clock apps ranking as of September 2026, with a 4.6-star average from 69K App Store ratings, and it's free to download.
Yes — 18 of the top exact time clock apps we rank are free to download, including Flip Clock:Digital Desk Widget and AtomicClock: NTP Time.
Flip Clock:Digital Desk Widget shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ exact time clock apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides a classic desktop digital clock widget that can be displayed on your home screen, lock screen, and standby screen. It supports showing seconds, a calendar, and offers various timekeeping functions like alarms, timers, and stopwatches.
Key features include displaying time with seconds on various screens, full-screen time and date display, 12/24 hour modes, a smart alarm, timer, stopwatch, countdown functionality, Pomodoro Technique support, and customizable widget signatures.