Comparison

Atomic Clock vs Real

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

Real

Features
Read full description

Real-Time Atomic Clock This app shows the current time with high accuracy. It uses trusted NTP servers to stay precise. It updates in real time. It does not drift like a phone clock can. You get: β€’ Accurate time based on atomic reference clocks β€’ Automatic syncing with NTP servers β€’ No setup required β€’ Clean and easy display Useful when: β€’ You need exact time for work or travel β€’ You check time across devices β€’ You need a reliable reference clock

Screenshots

Atomic Clock3 screens
Real4 screens

Verdict

The call

The clearest difference is price: Atomic Clock at Free against Real's $2.99. On ads, in-app purchases, device support and iOS requirement 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

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

Scorecard1 real difference Β· 5 level
Atomic Clock versus Real: the parameters behind the verdict, then further details
ParameterAtomic ClockReal
PriceFree β€” better$2.99
Update frequencyβ€”Every 10 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS15.115.1
Further details β€” not scored
Size29 MB24 MB
Age rating4+4+
DeveloperSTAN I. C. ALEXANDRU PERSOANA FIZICA AUTORIZATAPanupong Sakulsaeng

In-app purchases

None

Atomic Clock

No in-app purchases

None

Real

No in-app purchases

Questions

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

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