Best Clock Accuracy App

228+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated June 2026

If you already know Timegrapher, this is the deeper bench. 228+ clock accuracy app apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.

Top Picks for Clock Accuracy App

Timegrapher - watch accuracy#1

Timegrapher - watch accuracy by Attila Lelko

Measurement tool for watches
Editor's Choice
🔧 Utilities
2.6(26 ratings)
FreeIn-App Purchases
Timegrapher - watch accuracy screenshot 1
Timegrapher - watch accuracy screenshot 2
Timegrapher - watch accuracy screenshot 3

Measure your watch accuracy with an app that detects beat rate, beat error, and more using your device's microphone. Get real-time insights and stay tuned for additional features.

Atomic Clock PRO#2

Atomic Clock PRO by Brachmann Online Marketing GmbH & Co. KG

Exact Time Digital and Analog
Strong Contender
🔧 Utilities
4.7😐(9.8K ratings)
FreeAdsIn-App Purchases
Atomic Clock PRO screenshot 1
Atomic Clock PRO screenshot 2
Atomic Clock PRO screenshot 3
Atomic Clock PRO screenshot 4
Atomic Clock PRO screenshot 5
Atomic Clock PRO screenshot 6

This app offers exact time from an atomic clock, automatically recognizes your time zone, allows personal background images, and lets you switch between digital and analogue clocks by swiping. Available for iPhone and iPad. Download now for free!

What We Love

  • ⭐ Accurate time display
  • 📟 Useful for timing events
  • 🕰️ Helpful for setting other clocks
  • 🔍 Large, easy-to-read clock face

Room to Improve

  • 💸 Subscription model for ad-free version
  • 📢 Excessive advertisements
  • 🔍 Small font for seconds display
TimeClock Plus Clock#3

TimeClock Plus Clock by Data Management Inc.

Worth Considering
💼 Business
4.9😞(16K ratings)
Free
TimeClock Plus Clock screenshot 1
TimeClock Plus Clock screenshot 2
TimeClock Plus Clock screenshot 3
TimeClock Plus Clock screenshot 4
TimeClock Plus Clock screenshot 5
TimeClock Plus Clock screenshot 6

Revolutionize employee management with a mobile application that allows remote clock-ins, job code changes, time-off requests, schedule checks, and more. Enhance efficiency and streamline operations with TCP MobileClock - the perfect solution for modern workforce management. Explore resources at https://timeclockplus.force.com/TCPSupport/s/ for a seamless experience.

What We Love

  • ✨ Excellent
  • 🚀 It just works
  • 🤝 Convenient
  • 👍 Easy to use

Room to Improve

  • 🐛 Glitchy and unreliable
  • 🚫 Doesn't work properly
  • 🔒 Connectivity issues

More Clock Accuracy App apps to explore

4
Flip clock - no ads
Flip clock - no ads
Flip clock - no ads
Digital Clock&Nightstand clock
Free

A sleek and ad-free digital clock app featuring a flip clock design for easy time tracking. Stay organized and on schedule with this stylish and functional timepiece. Download now for a clutter-free timekeeping experience.

🌟 Lifestyle
(4.1K)
5
ClockPhone big digital clocks
ClockPhone big digital clocks
ClockPhone big digital clocks
Alarm clock, timer, widget
Free

ClockPhone is a versatile clock application perfect for charging stations or repurposing old gadgets. It features large, clear digits with customizable settings, different display modes, and widgets for easy time viewing. Download it for iOS devices and enjoy a visually appealing and functional clock experience.

🌟 Lifestyle
(28K)
6
The Analog Clock
The Analog Clock
The Analog Clock
Simple Analog Clock
Free

A simple analog clock app that displays a customizable clock on your screen without any ads. Features include changing background color, theme color, and dial letters. Upgrade to the Premium Plan for access to more designs and detailed customization options. Create your perfect analog clock with ease.

🔧 Utilities
(2.1K)
7
Clock – Simple & Customizable
Clock – Simple & Customizable
Clock – Simple & Customizable
A minimalistic 24h clock app
Free

Clock - Simple and user-friendly alarm clock app that helps you wake up on time every day. Set multiple alarms, choose from different alarm sounds, and customize snooze options. Download now and start your mornings right!

🔧 Utilities
(117)
8
OnTheClock employee time clock
OnTheClock employee time clock
OnTheClock employee time clock
Time & Attendance Web Clock
Free

A comprehensive employee time clock application that simplifies time tracking, scheduling, and payroll management. Streamline your workforce operations efficiently and accurately.

💼 Business
(457)
9
Punch Time Clock
Punch Time Clock
Punch Time Clock
Timesheets & Hours Tracker
Free

Manage your work hours efficiently with our easy-to-use Punch Time Clock Hours Tracker. Keep track of your weekly timesheets seamlessly and stay organized. Download now to simplify your time management!

💼 Business
(32K)
10
ExakTime Mobile–Time Clock App
ExakTime Mobile–Time Clock App
ExakTime Mobile–Time Clock App
by Arcoro Holdings Corp.
Free

This mobile time clock app simplifies employee time tracking with GPS stamping, field notes, and photo attachments. It seamlessly syncs with cloud-based time tracking software, streamlining labor management and improving productivity. Try it now for efficient labor expense management and simplified payroll processing.

💼 Business
(268)
11
TimeStation
TimeStation
TimeStation
Attendance & Time Tracking
Free

TimeStation is an efficient employee attendance tracking app that simplifies time management for businesses. Easily track employee work hours, view timesheets, and streamline payroll processes with this user-friendly application. Try it now for a hassle-free solution to your time tracking needs.

💼 Business
(593)
12
Hours - Tracker & Time Clock
Hours - Tracker & Time Clock
Hours - Tracker & Time Clock
Work Sheet Calculator In Out
Free

Track and manage your time effectively with this application. Stay organized, boost productivity, and easily monitor your daily tasks and goals. Download now to make the most of your time!

💼 Business
(16K)
13
Twelve O'clock
Twelve O'clock
Twelve O'clock
Track your watch accuracy
Free

Track your watch accuracy with ease using an app that helps manage your watch collection, calculate accuracy, and learn more about horology. Add, edit, and remove watches, track accuracy in seconds per day, and enjoy curated content for watch enthusiasts.

🔧 Utilities
(80)
14
Altametrics Clock
Altametrics Clock
Altametrics Clock
by Altametrics Inc
Free

This app streamlines timekeeping for employees with real-time punch addition, allows managers to prevent labor law violations, enables clocking in from any web-enabled device, provides sales forecast comparison, ensures accurate timekeeping with manager approval, and allows real-time monitoring of employee schedules. Ready to optimize your workforce management?

💼 Business
(479)
15
ChronoLog • Watch Accuracy
ChronoLog • Watch Accuracy
ChronoLog • Watch Accuracy
Track watch accuracy with ease
Free
$4.99 | 100% OFF

Track and monitor the accuracy of your watch collection effortlessly with ChronoLog. This app offers detailed insights, attractive graphs, custom tags for tracking, and secure data management, making it the perfect companion for watch enthusiasts. Enhance your watch ownership experience - download ChronoLog today!

🔧 Utilities
(174)
16
iFloating Clock - Realtime
iFloating Clock - Realtime
iFloating Clock - Realtime
Clock, Timer and Countdown
Free

Experience the ultimate digital clock app with iFloating Clock - Realtime! Elevate your time management with real-time clock, timer, and countdown features, customizable to suit your preferences. Take control of your time with iFloating Clock's versatile and sleek design.

🔧 Utilities
(193)
17
Clock Seconds
Clock Seconds
Clock Seconds
Largest Clock with seconds
Free
🔧 Utilities
(4)
18
Time Clock Wizard
Time Clock Wizard
Time Clock Wizard
by Time Clock Wizard, Inc
Free

An employee time tracking and management application with features like clocking in/out, adding timesheet changes, GPS tracking, and task management. Also includes payroll report generation, push notifications, receipt image uploads, and support. Managers can monitor employee work, manage time off, tasks, schedules, and export reports.

💼 Business
(180)
19
Kids Clock
Kids Clock
Kids Clock
A clear teaching clock
Free

This teaching clock app helps kids learn to tell time with a clear and simple interface, and can also be used as a desk or bedroom clock. It offers customizable options and runs ad-free, making it perfect for parents and teachers to help primary school children learn time-telling skills.

📚 Education
(45)
20
Analog Clock Face
Analog Clock Face
Analog Clock Face
A beautiful desk clock
Free

Experience elegance and functionality with this new analog clock app for iOS devices. Transform your device into a stunning desk clock.

📊 Productivity
(780)