Android

Atomic Clock - Exact Time

Atomic Clock - Exact Time has 73,361 installs (+0.2% in 30 days), rated 3.7 from 244 ratings, #20,612 of 243,936 in Tools.

View in the Android store ↗
Installs
73,361
+50 (+0.1%) a week, measured over 16 days
Rating
3.7
244 ratings
+2 ratings (+0.8%) a week, measured over 16 days
Rank on Android
#220,593
of 2,945,097
down 9,911 since 2026-11-04
Version
4.0
Last updated 2026-10-18

Description

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Is your phone's clock really right? Atomic Clock shows you the exact time, synchronized with internet time servers, and tells you how many milliseconds your phone is off.

Use it to catch the start of a ticket sale or a limited drop, to bid at the last second, to set your watch, or to count down to midnight on New Year's Eve. Or simply as a beautiful clock on your desk or nightstand.

EXACT
• Synchronized with time servers that follow atomic clocks
• Several measurements per sync, the most precise one wins
• Shows the accuracy of each sync, e.g. "±8 ms"
• Compensates the delay of your screen
• Keeps counting exactly between syncs, even if the phone's clock is changed

BEAUTIFUL
• Digital or analog, with 10 dials, including a railway station clock
• Over 20 fonts, including a classic 7-segment display
• Your own colors for digits, background and hands
• Glowing digits, blinking colons, a second hand that ticks or sweeps

AUDIBLE
• A tick every second
• Time signal like on the radio: beeps from second 55, long beep on the full minute
• Spoken time or a chime every few seconds or minutes

MADE FOR ALWAYS ON
• Screen stays on while the clock is open
• Burn-in protection gently moves the display
• One tap hides everything but the clock
• Portrait, landscape, any time zone, dark or light

Needs an internet connection to synchronize. No account, no setup: open it and see the exact time.

Is Atomic Clock - Exact Time safe?

StoreTally doesn't rate safety. Here's what the store and our tracking show:

  • Listed on Google Play.
  • Made by FSP Apps; developer website listed: fsphost.com. Details →
  • On Google Play since 2015-08-28. Last updated 2026-10-18.
  • Rated 3.7 from 244 ratings. Details →

Reviews The reviews Google Play shows first (its most relevant), from the US store, in any language.

From 234 ratings.

Growth change in installs

Per Growth Growth % Actual change Measured over
day Not enough history yet
week +50 +0.1% +112 15.7 days
month +182 +0.2% +201 33.1 days
year Not enough history yet
How these figures are measured

Change in installs, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.

Installs73,361
2026-10-05 · 73,160 2026-11-07
Ratings244
2026-10-05 · 239 2026-11-07
New ratings per month+0 so far
Oct 2026 from 2026-10-05: +5 Nov 2026 so far: +0
Oct 5 Nov so far
Average rating3.7
2026-10-05 · 3.8 2026-11-07

Alternatives to Atomic Clock - Exact Time

Name Installs Rating
Atomic Clock & Watch Accuracy by Tomas Hubalek 476,662 4.8
Atomic Time - NTP Clock Sync by Thomas Wiegold 194,599 4.8

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