Comparison

World Sync vs Atomic Clock App

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

Head to head
About

World Sync

Easily check and compare current or future times across multiple global locations. Coordinate meetings, travel, or connect with loved ones worldwide with a simple scroll interface. No account setup required for instant global time awareness.

Highlights
  • Compare time across unlimited cities
  • Scroll to view future times
  • Add and manage custom city lists
  • Daylight saving time insights
  • Immediate use without account setup
  • Smart location setup
Features
Read full description

World Sync is the easiest way to check and compare the time anywhere in the world, now or in the future. Whether you’re coordinating a meeting, catching up with family overseas, or booking travel, World Sync helps you see what time it will be across your selected cities—all with a simple scroll. No account. No setup. Unlimited cities. Just global time awareness made effortless. Features: • Immediate use – Launch and start syncing time immediately without creating an account. • Smart location setup – Use your current location or enter a city manually. • Scroll to the future – Drag the time ribbon forward or backward to see how local times shift across all your selected cities. • Custom city list – Add, reorder, or remove cities anytime. • Daylight saving insights – Tap the info button to see when and how time shifts due to DST. • Manual control – Switch your “current city” to simulate different scenarios. Perfect for remote teams, travelers, event planners, or anyone who needs to think globally.

About

Atomic Clock App

Features
Read full description

Atomic Clock App — Precision Timepiece Experience time like never before. Atomic Clock App transforms your device into a refined, luxury-inspired timepiece with multiple stunning clock faces, powerful timers and a world clock — all designed with the elegance of a high-end watchmaker. BEAUTIFUL CLOCK FACES Choose from six meticulously crafted clock face styles: • Analog — A classic watch dial with elegant hands, tick marks and a smooth sweeping second hand • Digital — LED-style display with a soft glow effect for that retro-modern feel • Minimal — Clean typographic time display for a sleek, distraction-free look • Roman — Timeless Roman numeral clock face with refined detailing • Binary — A unique binary-encoded time display for the tech-savvy • Military — Precise 24-hour format inspired by tactical instruments Swipe between faces effortlessly or pick your favorite in settings. WORLD CLOCK Track time across the globe. Add cities from every timezone and see local times at a glance. Tap to switch between 12-hour and 24-hour formats instantly. Easily manage your cities with a simple delete option. STOPWATCH Accurate to the second with start, pause and reset controls. Record laps and scroll through your history — perfect for workouts, cooking or any timing need. COUNTDOWN TIMER Set precise countdowns with an animated circular progress ring. Pick hours, minutes and seconds, then watch the elegant ring animate down to zero. POMODORO TIMER Stay focused and productive with a built-in Pomodoro technique timer. Alternate between work sessions and breaks to maximize concentration and efficiency. ALARMS Create and manage multiple alarms with custom labels and repeat options for specific days of the week. Toggle alarms on and off with a tap. BEDTIME Set your ideal sleep and wake schedule. Track your sleep goals and build healthier routines with the dedicated bedtime feature. LUXURY DESIGN Every detail is crafted with care: • Deep matte black background inspired by luxury watch boxes • Six accent colors — Gold, Rose, Cyan, Emerald, Crimson and Silver — inspired by precious metals and gemstones • Subtle glow effects and smooth animations throughout • Dark card layouts with hairline borders for a refined, tactile feel • Frosted glass tab bar with fine icons CUSTOMIZATION Make it yours. Choose your preferred clock face, select an accent color that tints the entire app and switch between AM/PM and 24-hour formats with a single tap. Atomic Clock App is designed for anyone who appreciates precision, beauty and thoughtful design. Whether on your nightstand, your desk or in your pocket — time has never looked this good. Download Atomic Clock App and elevate every second.

Screenshots

World Sync4 screens
Atomic Clock App4 screens

Verdict

The call

The clearest difference is price: World Sync at Free against Atomic Clock App's $2.99. Atomic Clock App's advantage is iOS requirement (15.1 vs 17.6). On ads, in-app purchases 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

World Sync is free to download; Atomic Clock App costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 7 level
World Sync versus Atomic Clock App: the parameters behind the verdict, then further details
ParameterWorld SyncAtomic Clock App
PriceFree — better$2.99
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size18 MB31 MB
Age rating4+4+
DeveloperOne47Gianfranco Antenucci

In-app purchases

None

World Sync

No in-app purchases

None

Atomic Clock App

No in-app purchases

Questions

Is World Sync free?
World Sync is free to download, with no in-app purchases.
Is Atomic Clock App free?
Atomic Clock App costs $2.99, with no in-app purchases.
Do World Sync or Atomic Clock App have ads?
Neither World Sync nor Atomic Clock App shows ads.

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