原子时钟 AtomicClock

Really want to say thanks to the developers for great authentic customizable app. The app, that do it’s job 100% and not bothering in free version too. Great functionality. Greenwich signal. Etc... Etc... Paying myself fair amount to the devs with a free of a will, because the app is great and handy, comparing to many other. Let it be just like that all the time! It’s perfect! PS We (watch holders) do not have a choice to have an app to calibrate the clock movement, at the moment, for a reasonable price on IOS. The precision of that kind of apps may be not enough to calibrate the quartz movement, but it can be done too. The apps, that hearing the clock beat with an internal/headset mics are cost much more, than it may be. It will be great to see one from your team. I’m sure it will be a second “must have” app for watch care. Good luck!

Late 2 second compare to Window PC clock, missed all the racquet court booking. Change every time server available, but still late

Very handy

Had this app for a while and now all of a sudden, it refuses to work

One of the few apps that has a clock face designed to set your watch by. Seconds can tick or sweep, depending on whether you're setting a mechanical or HAQ movement. Audible ticking sound can be toggled on or off for extra accuracy when setting a watch. The addition of multiple timezones makes setting a GMT/dual time complication simple, and the app is now perfect. The best on the App Store!

Simple yet elegant! It just works and works so very well with no dirty, long winded video ad porn… other developers could learn quite a lot from this developer! Tnx for a great app!!!

So far, so good nice display

Y'all know that all GPS-enabled phones are already on NTP time, right? GPS doesn't function without synced time. But it's mildly fun seeing the split seconds display.

“Big D”

Love the app would like to see some widgets for iPad. I use this in conjunction with my stratum 1 server to keep all my devices in sync…it’s just fun