Comparison

CASIO WATCH+ vs AtomicClock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CASIO WATCH+

Connect your compatible CASIO watch to your iPhone via Bluetooth to unlock enhanced Mobile Link functions. This application simplifies watch operations by allowing you to control them from your phone screen, enriching your overall experience.

Highlights
  • Bluetooth v4.0 connectivity
  • Mobile Link functions
  • Simplified watch operations
  • iPhone integration
  • Remote control via phone screen
Features
Read full description

●Description This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled CASIO watch. Pairing your watch with an iPhone enables use of a variety of different Mobile Link functions that greatly enhance the iPhone experience. The CASIO WATCH+ app also simplifies certain watch operations by letting you perform them on your phone screen. Visit the website below for details. EQB-500, EQB-510, ECB-500, EQB-600, EQB-700, EQB-501, EQB-800, EQB-900 http://www.edifice-watches.com/bs/ Applicable Watches: EQB-500, EQB-510, ECB-500, EQB-600, EQB-700, EQB-501, EQB-800, EQB-900, SHB-100, SHB-200 *Some watches unavailable in your region may be displayed in the application. Continued use of GPS running in the background can dramatically decrease battery life.

About

AtomicClock

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.

Highlights
  • Precise time from NTP servers
  • Customizable clock faces
  • Select or add time servers
  • Local and UTC views
  • 12/24 hour modes
  • Customizable time format
  • Acoustic ticking
Features
Read full description

Check precise NTP reference time at a glance. AtomicClock helps you set watches, wall clocks, cameras, and other devices, compare local time with UTC, and follow moments when every second matters. Clear analog and digital time AtomicClock displays current time from NTP servers that reference atomic clocks. Choose a predefined server or add your own, then view local or UTC time in a clean analog or digital clock. Customize your reference clock • Switch between 12-hour and 24-hour time • Customize the time format • Choose from multiple clock faces and hands • Use a smooth, fluid second hand • Add acoustic ticking or the Greenwich Time Signal • Tap the screen to hide information and controls, freeze the display, or mute ticking Details for precise time checks View technical NTP information, including round-trip time and server stratum. Whether you are checking a timestamp, preparing a camera, aligning a wall clock, or setting a watch by hand, the seconds remain clear and easy to follow. AtomicClock is free to use. AtomicClock Pro is available as a one-time purchase with no subscription. It unlocks your preferred clock face, hands, and font, removes ads, and includes upcoming Pro features. AtomicClock displays NTP reference time for comparison and does not change your device’s system time. Results can vary with the selected server, network conditions, and device behavior.

Screenshots

CASIO WATCH+3 screens
AtomicClock4 screens

Verdict

The call

The clearest difference is review sentiment: AtomicClock at 84% against CASIO WATCH+'s 18%. AtomicClock also leads on rating (4.8 vs 2.9) and ratings volume (5.5K vs 44). CASIO WATCH+'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AtomicClock sells 1 one-off in-app purchase. CASIO WATCH+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AtomicClock holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: AtomicClock has 5.5K ratings behind it against 44, so its average is the more settled of the two. Written reviews point the same way: 18% of CASIO WATCH+'s written reviews are positive against 84% of AtomicClock's.

UpkeepUpdate frequency

CASIO WATCH+ ships an update monthly, AtomicClock every 3 weeks. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 3 level
CASIO WATCH+ versus AtomicClock: the parameters behind the verdict, then further details
ParameterCASIO WATCH+AtomicClock
PriceFreeFree
Rating2.9 (44 ratings)4.8 (5.5K ratings) — better
Positive reviews17.7% of reviews84.2% of reviews — better
Number of ratings445.5K — better
Update frequencyMonthlyEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size69 MB17 MB
Age rating4+4+
DeveloperCASIO COMPUTER CO., LTD.Timo Partl

Customer experience

CASIO WATCH+

All ratings44 ratings
Positive45.5%
Neutral6.8%
Negative47.7%
Written reviews750 reviews
Positive17.7%
Neutral7.5%
Negative74.8%

AtomicClock

All ratings5,539 ratings
Positive96.5%
Neutral1.8%
Negative1.8%
Written reviews241 reviews
Positive84.2%
Neutral3.3%
Negative12.4%

User reviews

CASIO WATCH+

From 44 App Store ratings

What we love

  • 👍 Works well with iPhone 6/6s
  • 👍 Easy to use interface
  • 👍 Able to sync watch settings
  • 👍 Helpful support for clearing pairing info

Room to improve

  • 🐛 Connectivity issues with newer iPhones
  • 🐛 App crashes frequently
  • 🐛 Fails to connect to watch
  • 🐛 Unreliable Bluetooth connection
  • 🐛 Time/date sync problems

AtomicClock

From 5.5K App Store ratings

What we love

  • 🚀 Accurate time
  • 👍 Highly customizable
  • 🚀 Precise to the second
  • 👍 Easy to use
  • 👍 Helpful for setting watches

Room to improve

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

Bugs and requests

CASIO WATCH+

Reported bugs

4 issues
  • Compatibility issues with iOS updates
  • Pairing problems with iPhone 6/6s/7
  • Sync failures and connection drops
  • Watch settings not transferring properly

Requested features

4 requests
  • Show watch battery status
  • Add more world time cities
  • Improve phone finder functionality
  • Allow more control over alarms/timers

AtomicClock

Reported bugs

3 issues
  • Crashes on certain iOS versions
  • Occasional freezing of hands
  • Countdown timer sound not working

Requested features

5 requests
  • Add GMT/dual time display
  • Implement widget support
  • Add different second hand sounds
  • Allow setting background color to match watch
  • Include alarm/timer functionality

In-app purchases

None

CASIO WATCH+

No in-app purchases

1 purchases

AtomicClock

One-time1
  • Lifetime Pro Version$6.99

Questions

Is CASIO WATCH+ free?
CASIO WATCH+ is free to download, with no in-app purchases.
Is AtomicClock free?
AtomicClock is free to download, with in-app purchases available.
Which has better reviews, CASIO WATCH+ or AtomicClock?
AtomicClock is rated higher. CASIO WATCH+ averages 2.9 out of 5 from 44 ratings, while AtomicClock averages 4.8 from 5.5K ratings.
Do CASIO WATCH+ or AtomicClock have ads?
AtomicClock shows ads; CASIO WATCH+ does not.
Which is updated more often, CASIO WATCH+ or AtomicClock?
CASIO WATCH+ ships an update monthly, and AtomicClock every 3 weeks. Most recently, CASIO WATCH+ was updated on October 9, 2026 and AtomicClock on October 14, 2026.

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