Atomic Clock & Watch Accuracy

Tomas Hubalek

Contains adsIn-app purchases

About this app

This app has two main features:
- it detects and shows exact time (via NTP protocol). It can be helpful if you want to sync time on some of your devices with atomic clock.
- it allows to track accuracy of your wristwatches. It can be helpful if you want to know how exact your wristwatch is. You can share this information with watchmaker and it helps him to adjust your watches properly.

Features in detail:

Atomic Time from NTP Servers
- Most accurate time on the earth is provides by Atomic clocks. To synchonize computer/phone clock with atomic clock you can use Network Time Protocol servers.
- This app is able to connect to NTP time servers and show you exact time
- There is list of NTP Time Servers (including goverment time servers like NIST Internet Time Service)
- On Android 8 you can use Picture-in-Picture function and adjust your clock according excact time shown in small window over other apps.

Watch accuracy tracking app
With this app you can
- track accuracy of your wristwatch collection (works well for both mechanical and quartz watches)
- simply tap in the app, let app know what time was shown on wristwatch and app will do all the statistics and show you watch accuracy chart
- share accuracy chart with your friends on social networks
- export your accuracy data as CSV for further processing

Free vs. paid functionality
- basic app functionality is for free. You can check exact time for free. You can track one of your watches for free.
- premium functionality is paid feature

Feel free to contact us if you find any bug and/or you want to suggest some improvement.

Ratings and reviews

I have been using the free version of Atomic Clock for about a week and I truly love this app! It does everything I need to know how far off my phone system clock is. Best of all, this app provides a way to keep track of the difference between an NTP Time Server and a watch, that way you have the information to share with the watch maker and/or your favorite horologist to properly adjust your watch! I strongly and happily recommend Atomic Clock and Watch Accuracy! THANK YOU Tomas Hubalek!

The app works fine, but be careful when purchasing any of the MANY upgrades. I mistakenly purchased the wrong one for $4.49 and subsequently immediately purchased a more premium option costing $9.99. There seems to be no way, within the app, to correct the issue. Luckily, my credit card allows me to 'simply' (lol) dispute my errant purchase. I didn't mind the 'gofundmeness' (lol²) of their premium upgrade. However, their optional app upgrade offerings/purchasing could be improved.

Great app. I live right on the border between Eastern and Central time. Depending on where I'm located on the farm and which cell tower I'm pinging, my phone will jump back and forth an hour. That makes for a confusing day. So we keep our phones permanently set to Central time. By not pinging a tower and getting constant time updates the phone drifts forward. Over the course of a couple of months it will be as much as 3 minutes ahead. I know this because of the Atomic Clock app.

What's new

Release notes for version 2.0.x
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- Collapsible ads can be displayed on main screen only since now. Will not be shown in nested screens. (version 2.0.7)
- Changed ads layout (version 2.0.6)
- Fixed logout related crash (version 2.0.5)
- Fixed rare crashes (version 2.0.4)
- Fixed another login issue related to backups (version 2.0.3)
- Fixed login issue related to backups (version 2.0.2)
- Upgraded to latest version of Google's payment solution (version 2.0.0)