Comparison

AtomicClock vs BarcodeUtilityApp

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

Head to head
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.

About

BarcodeUtilityApp

Features
Read full description

Ever forget a can of food until it's past its consumption date? With ProductTracker25 you can scan barcodes and add/edit expiry dates, to keep track of all your consumables. Step 1: Scan the can (barcode/QR Code etc) Step 2: Select date from date picker. Step 3: Click save. Alerts get saved automatically unless you turn off notifications on your device. Alerts will trigger one day before use by date.

Screenshots

AtomicClock4 screens
BarcodeUtilityApp4 screens

Verdict

The call

The clearest difference is price: AtomicClock at Free against BarcodeUtilityApp's $4.99. AtomicClock also leads on iOS requirement (15.0 vs 18.2). BarcodeUtilityApp's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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

AtomicClock is free to download; BarcodeUtilityApp costs $4.99 up front. AtomicClock sells 1 one-off in-app purchase. BarcodeUtilityApp asks for nothing beyond the download.

UpkeepUpdate frequency

AtomicClock ships an update every 3 weeks, BarcodeUtilityApp weekly. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 5 level
AtomicClock versus BarcodeUtilityApp: the parameters behind the verdict, then further details
ParameterAtomicClockBarcodeUtilityApp
PriceFree — better$4.99
Rating4.8 (5.5K ratings) — better—
Positive reviews84.2% of reviews—
Number of ratings5.5K — better—
Update frequencyEvery 3 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.2
Further details — not scored
Size17 MB2 MB
Age rating4+4+
DeveloperTimo PartlAnanya Ayer

Bugs and requests

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

BarcodeUtilityApp

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

AtomicClock

One-time1
  • Lifetime Pro Version$6.99
None

BarcodeUtilityApp

No in-app purchases

Questions

Is AtomicClock free?
AtomicClock is free to download, with in-app purchases available.
Is BarcodeUtilityApp free?
BarcodeUtilityApp costs $4.99, with no in-app purchases.
Do AtomicClock or BarcodeUtilityApp have ads?
AtomicClock shows ads; BarcodeUtilityApp does not.
Which is updated more often, AtomicClock or BarcodeUtilityApp?
AtomicClock ships an update every 3 weeks, and BarcodeUtilityApp weekly. Most recently, AtomicClock was updated on October 12, 2026 and BarcodeUtilityApp on October 3, 2026.

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