Atomic Clock & Watch Accuracy Tool (Package Name: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool) is developed by Tomas Hubalek and the latest version of Atomic Clock & Watch Accuracy 2.6.0 was updated on December 29, 2025. Atomic Clock & Watch Accuracy is in the category of Tools. You can check all apps from the developer of Atomic Clock & Watch Accuracy and find 200 alternative apps to Atomic Clock & Watch Accuracy on Android. Currently this app is for free. This app can be downloaded on Android 6.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
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.
Atomic Clock & Watch Accuracy Tool 2.6.0 Update
Release notes for version 2.6.x -------------------------------- - Polished look of UI (version 2.6.0) - Easier selection of NTP server (version 2.6.0) - Made compatible with latest Android SDK (version 2.6.0)
Base APK: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool.apk
Split APKs: config.arm64_v8a, config.xhdpi
Size: 14.62 MB
What's New:
Release notes for version 2.6.x -------------------------------- - Polished look of UI (version 2.6.0) - Easier selection of NTP server (version 2.6.0) - Made compatible with latest Android SDK (version 2.6.0)
Base APK: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool.apk
Split APKs: config.arm64_v8a, config.xxxhdpi
Size: 14.68 MB
What's New:
Release notes for version 2.6.x -------------------------------- - Polished look of UI (version 2.6.0) - Easier selection of NTP server (version 2.6.0) - Made compatible with latest Android SDK (version 2.6.0)
Base APK: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool.apk
Split APKs: config.armeabi_v7a, config.xhdpi
Size: 14.62 MB
What's New:
Release notes for version 2.6.x -------------------------------- - Polished look of UI (version 2.6.0) - Easier selection of NTP server (version 2.6.0) - Made compatible with latest Android SDK (version 2.6.0)
Base APK: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool.apk
Split APKs: config.xhdpi
Size: 9.47 MB
What's New:
Release notes for version 2.0.x -------------------------------- - Improved Finnish translation (version 2.0.13) - Added Finnish translation. Updated other translations (version 2.0.13) - Maintenance release (version 2.0.13) - Collapsible ads can be displayed on main screen only since now. Will not be shown in nested screens. (version 2.0.9) - Fixed rare crash while starting the app (version 2.0.7) - Changed ads layout (version 2.0.6) - Fixed logout related crash (version 2.0.5)
Base APK: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool.apk
Split APKs: config.xxxhdpi
Size: 9.53 MB
What's New:
Release notes for version 2.0.x -------------------------------- - Improved Finnish translation (version 2.0.13) - Added Finnish translation. Updated other translations (version 2.0.13) - Maintenance release (version 2.0.13) - Collapsible ads can be displayed on main screen only since now. Will not be shown in nested screens. (version 2.0.9) - Fixed rare crash while starting the app (version 2.0.7) - Changed ads layout (version 2.0.6) - Fixed logout related crash (version 2.0.5)
Base APK: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool.apk
Split APKs: config.xxxhdpi
Size: 9.4 MB
What's New:
Release notes for version 2.0.x -------------------------------- - 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)
Base APK: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool.apk
Split APKs: config.xxhdpi
Size: 9.38 MB
What's New:
Release notes for version 2.0.x -------------------------------- - 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)
Base APK: net.hubalek.android.apps.atomic_clock_watch_accuracy_tool.apk
Split APKs: config.xhdpi
Size: 9.35 MB
What's New:
Release notes for version 2.0.x -------------------------------- - 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)
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