Comparison

Atomic Clock vs Swatch Time

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

Head to head
About

Atomic Clock

Features
Read full description

Always know the exact time with Atomic Clock – Precise Time. Our app synchronizes with official atomic time servers to deliver ultra-accurate time down to the millisecond. Whether you’re coordinating across time zones, managing scientific experiments, or simply want the most reliable clock, this app provides unmatched precision. Features: - Real-time synchronization with global atomic clock servers - 24-hour and 12-hour display options - Beautiful, minimal clock face with dark mode - Works online and offline with last known atomic time - Perfect for professionals, travelers, pilots, scientists, and anyone who values absolute accuracy. An atomic clock is a timekeeping device that measures time based on the vibrations or transitions of atomsβ€”usually cesium or rubidium. Unlike mechanical or quartz clocks, which rely on moving parts or crystals, atomic clocks use the natural oscillations of atoms as their frequency standard. This makes them the most accurate clocks ever developed, capable of maintaining time to within a few billionths of a second per day. Atomic clocks are essential for applications where extreme precision is required, such as GPS navigation, telecommunications, space exploration, scientific experiments, and synchronizing global networks.

About

Swatch Time

Features
Read full description

Swatch Time displays time in '.beats' and in local time. Users are available worldwide. You are able to swipe from one to the other and share the Internet time to your friends.

Screenshots

Atomic Clock3 screens
Swatch Time3 screens

Verdict

The call

The clearest difference is iOS requirement: Atomic Clock at 15.1 against Swatch Time's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Β· 5 level
Atomic Clock versus Swatch Time: the parameters behind the verdict, then further details
ParameterAtomic ClockSwatch Time
PriceFreeFree
Update frequencyβ€”Every 5 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 β€” better18.0
Further details β€” not scored
Size29 MB51 MB
Age rating4+4+
DeveloperSTAN I. C. ALEXANDRU PERSOANA FIZICA AUTORIZATANicolas Fillion

In-app purchases

None

Atomic Clock

No in-app purchases

None

Swatch Time

No in-app purchases

Questions

Is Atomic Clock free?
Atomic Clock is free to download, with no in-app purchases.
Is Swatch Time free?
Swatch Time is free to download, with no in-app purchases.
Do Atomic Clock or Swatch Time have ads?
Neither Atomic Clock nor Swatch Time shows ads.

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