Best Clocksync Apps

185+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated June 2026

Out of 185+ clocksync apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Clocksync Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Radio Wave SyncRadio Wave SyncFree4.5โ˜… (1K)YesYesAug 2026
2ClockSyncClockSync$0.99โ€”NoNoJun 2026
3AtomicClock: NTP TimeAtomicClock: NTP TimeFree4.8โ˜… (5.5K)YesYesAug 2026
4Clock WaveClock Wave$1.994.7โ˜… (248)NoNoAug 2026
5ClockZ | Clock Display + AlarmClockZ | Clock Display + AlarmFree4.5โ˜… (5.5K)NoYesAug 2026
6ClockClockFree2.6โ˜… (16K)NoNoAug 2026
7ClockPhone big digital clocksClockPhone big digital clocksFree4.6โ˜… (29K)NoYesAug 2026
8Clock โ€“ Simple & CustomizableClock โ€“ Simple & CustomizableFree4.5โ˜… (117)NoNoAug 2026

Top Picks for Clocksync

Radio Wave Sync#1

Radio Wave Sync by ๅฎ ้‡‘

Sync Radio Controlled Watch
Editor's Choice
๐Ÿ”ง Utilities
4.5๐Ÿ˜(1K ratings)
FreeAdsIn-App Purchases
Radio Wave Sync screenshot 1
Radio Wave Sync screenshot 2
Radio Wave Sync screenshot 3

This app helps synchronize radio-controlled watches by simulating time signal waves. It supports various international time signal standards and offers a 'Beast Mode' for faster synchronization. Simply place your watch near your device's speaker and start the process.

What We Love

  • ๐Ÿš€ Works as intended
  • ๐Ÿ‘ Easy to use
  • ๐Ÿ’ก Innovative solution
  • ๐Ÿ”’ Reliable sync

Room to Improve

  • ๐Ÿ› Inconsistent performance
  • ๐Ÿ’ฐ Paid version required
  • ๐Ÿ”‡ Audio issues
AtomicClock: NTP Time#3

AtomicClock: NTP Time by Timo Partl

Precision clock reference
Worth Considering
๐Ÿ”ง Utilities
4.8๐Ÿ˜Š(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

  • ๐Ÿš€ Accurate time
  • ๐Ÿ‘ Highly customizable
  • ๐Ÿš€ Precise to the second
  • ๐Ÿ‘ Easy to use

Room to Improve

  • ๐Ÿ› Server connection issues
  • ๐Ÿ” Limited time zone options
  • ๐Ÿ’ฐ Ads diminish clock view

More Clocksync apps to explore

4
Clock Wave
Clock Wave
Clock Wave
Sync radio controlled watch.
$1.99

Calibrate your radio-controlled watch or clock using your iPhone or iPad. Simply tap 'Transmit' and place your device near your watch to automatically sync the accurate time.

Calibrate radio-controlled watches/clocksTransmit accurate time automaticallySupports 5 major global time signal stations
๐Ÿ”ง Utilities
(248)
free
5
ClockZ | Clock Display + Alarm
ClockZ | Clock Display + Alarm
ClockZ | Clock Display + Alarm
Night Stand | Widget | Timer
Free

This app provides a customizable digital clock display with alarm, timer, and stopwatch functions. It offers features like photo backgrounds, automatic unlock, and large, easy-to-read visuals, optimized for nighttime use. Premium options unlock additional themes and battery display.

Customizable digital clock displayMusic alarmTimer and stopwatch
๐Ÿ“Š Productivity
(5.5K)
freemium
6
Clock
Clock
Clock
Manage your time with ease
Free

This app helps you manage your time across devices. It offers features like a world clock for global time zones, customizable alarms with music options, a stopwatch for measuring durations, and timers for countdowns.

World Clock for global time zonesCustomizable Alarms with musicStopwatch with lap recording
๐Ÿ”ง Utilities
(16K)
free
7
ClockPhone big digital clocks
ClockPhone big digital clocks
ClockPhone big digital clocks
Alarm clock, timer, widget
Free

This app offers a stylish and functional digital clock with advanced alarm and timer features. Customize its appearance, set flexible alarms with unique dismissal methods, and utilize versatile timers for workouts or productivity.

Advanced alarm with flexible repeatsUnique alarm dismissal methods (NFC, QR, math)Versatile timer for workouts and productivity
๐ŸŒŸ Lifestyle
(29K)
free with in-app purchases
8
Clock โ€“ Simple & Customizable
Clock โ€“ Simple & Customizable
Clock โ€“ Simple & Customizable
A minimalistic 24h clock app
Free

This app displays the time with a minimalistic design, utilizing the full screen. It offers extensive customization for time format, including 12/24 hour, leading zeros, and seconds precision. Screen brightness can be adjusted by swiping, and screen dimming can be prevented.

Full-screen displayCustomizable time format (12/24hr, seconds)Adjustable screen brightness
๐Ÿ”ง Utilities
(117)
free
9
TimeClock ST
TimeClock ST
TimeClock ST
Hours Tracker & Timesheet Card
Free

This app transforms your iOS device into a shared timekeeping station for employees to clock in and out. It provides a cost-effective solution for tracking work hours and generating reports, ideal for businesses with a single point of entry for time tracking.

Employee time clockHours trackingTimesheet reporting
๐Ÿ’ผ Business
(39)
free with in-app purchases
10
Timer ูž
Timer ูž
Timer ูž
Kitchen cooking alarm
Free

This application provides a clean, simple, and reliable timer for various timing needs, including cooking, sports, and work. It offers seamless integration with Apple Watch and Today Widgets, allowing for synchronized control and notifications.

Apple Watch supportToday Widget supportSynchronized timer control
๐Ÿ”ง Utilities
(943)
ad-supported
11
RadioApp - A Simple Radio App
RadioApp - A Simple Radio App
RadioApp - A Simple Radio App
FM/AM Home & Car World Tuner
Free

Discover global radio stations with a stylish, analog-inspired interface. Features include automatic song identification, live rewind, and seamless CarPlay integration. Enjoy weather updates and personalized station management.

Automatic song identificationLive broadcast rewindAdvanced CarPlay integration
๐ŸŽต Music
(67K)
subscription
12
True Binary Clock Free
True Binary Clock Free
True Binary Clock Free
by C Loep
Free

This app displays time using binary code, offering both true binary and BCD modes. It includes an optional digital clock display and supports 12 or 24-hour formats with customizable colors. It's designed to be educational and visually appealing.

True binary clock modeBCD binary clock modeOptional digital clock
๐ŸŽฌ Entertainment
(12)
free
13
Clocks - A fun standby mode
Clocks - A fun standby mode
Clocks - A fun standby mode
A time and weather display
Free

Transform your device into a beautiful clock and weather display. Offers customizable clocks, animated backgrounds, and font options for a personalized experience. It's a private, ad-free alternative to standby modes, with optional matching screensavers for macOS.

Animated backgroundsCustomizable clock variationsFont and color options
๐Ÿ”ง Utilities
(382)
free with in-app purchases
14
ClockArt
ClockArt
ClockArt
An abstract view of time
Free

This app presents a unique, abstract visualization of time using slowly rotating clock hands. Explore different hours by sliding your finger, with the clock returning to the current time upon release. It offers widgets and customizable layouts for a playful, artistic approach to timekeeping.

Abstract clock hand visualizationInteractive time explorationHome screen and StandBy widgets
๐ŸŒŸ Lifestyle
(449)
free
15
Nite Time - a simple night clock for your nightstand with flashlight
Nite Time - a simple night clock for your nightstand with flashlight
Nite Time - a simple night clock for your nightstand with flashlight
by Nick Fanger
Free

A minimalist bedside clock with large, easy-to-read digits designed for low-light conditions. Customize displayed information and brightness. Offers optional upgrades for additional colors and a flashlight feature.

Large, clear digitsLandscape and portrait orientationAdjustable brightness
๐Ÿ”ง Utilities
(262)
free with in-app purchases
16
Analog Clock Face
Analog Clock Face
Analog Clock Face
Big Desk Clock & Screensaver
Free

This application provides a beautiful analog clock experience for your Apple devices. It functions as a desk clock, offering a visually appealing timepiece for your iPhone, iPad, and Mac.

Analog clock displayDesk clock functionalityiPhone compatibility
๐Ÿ“Š Productivity
(842)
free
17
Radio Garden Live
Radio Garden Live
Radio Garden Live
Listen to worldwide live radio
Free

Explore and listen to thousands of live radio stations from around the world. Simply rotate a globe to discover stations broadcasting from different cities and towns. Enjoy a seamless international radio experience with continuous playback, even when your device is asleep.

Global radio station discoveryInteractive globe interfaceLive streaming audio
๐ŸŽต Music
(2.3K)
free with in-app purchases
18
Flip Clock:Digital Desk Widget
Flip Clock:Digital Desk Widget
Flip Clock:Digital Desk Widget
StandBy Lock Screen & Pomodoro
Free

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.

Display seconds on multiple screensFull screen time and dateSmart alarm clock
๐Ÿ”ง Utilities
(69K)
free with in-app purchases
19
EMF Radiation Detector Reader
EMF Radiation Detector Reader
EMF Radiation Detector Reader
Detect Magnetic Field Meter
Free

Detect electromagnetic fields (EMF) around you using your phone's sensors. Identify high-radiation zones in your home and workplace to better organize your environment and potentially improve well-being. Measure EMF emitted by various electronic devices and appliances.

Detect EMF radiationMeasure EMF levelsIdentify risk zones
๐Ÿ”ง Utilities
(4.7K)
free with in-app purchases
20
Clock Widgets in Standby Mode
Clock Widgets in Standby Mode
Clock Widgets in Standby Mode
Lock screen time with seconds
Free

Display a real-time digital clock on your mobile device's desktop and lock screen. This app offers second-by-second updates, multiple theme styles, and an hourly chime with a human voice. It can show the time on your home screen, lock screen, dynamic island, and standby screen.

Real-time digital clock displaySecond-by-second updatesMultiple theme styles
๐ŸŽจ Graphics & Design
(130)
free with in-app purchases

FAQ about Clocksync

What are the best clocksync apps for iPhone?
Radio Wave Sync tops our clocksync apps ranking as of June 2026, with a 4.5-star average from 1K App Store ratings, and it's free to download.
Yes โ€” 18 of the top clocksync apps we rank are free to download, including Radio Wave Sync and AtomicClock: NTP Time.
Radio Wave Sync shows ads and offers in-app purchases, according to its App Store listing as of June 2026.
We track 185+ clocksync apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
Radio Wave Sync is designed to help you synchronize radio-controlled watches, especially those that have trouble receiving time signals. It works by simulating the necessary time signal waves that your watch needs to calibrate itself.
To use the app, first set your iPhone/iPad volume to maximum. Then, switch your radio-controlled watch to manual wave receiving mode. Place your watch near the device's speakers and tap the 'start' button. The synchronization process typically takes between 3 to 10 minutes.