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ChronoRover

Accurate time signal generator for radio-controlled watches.

Developer
cho3ek89
License
GPL-3.0-only
Package
com.cho3ek89.ChronoRover
Category
Time
Latest version
1.2.0 · Oct 2, 2026
Minimum Android
Android 6

Download 1.2.0

Screenshots

ChronoRover screenshot 1 ChronoRover screenshot 2 ChronoRover screenshot 3

Description

ChronoRover is a precise time signal generator that emulates official long-wave time broadcasts to synchronize radio-controlled watches with atomic accuracy using your phone’s speaker or headphones.

Among the currently supported signals are: DCF77 (Germany), MSF (United Kingdom), WWVB (United States), JJY (Japan), and BPC (China).

Whether you’re a watch enthusiast, collector, or simply want the most accurate time possible, ChronoRover turns your smartphone into a portable time signal transmitter.

Perfect solution for Casio and Citizen owners who live beyond the range of any official time signal transmission station!

CAUTION! This application generates loud, high-pitched noises that may cause discomfort or potential hearing damage! Leave the room while transmission is active.

All versions

VersionReleasedMinimum AndroidSize
1.2.0 Oct 2, 2026 Android 6 16.9 MB
1.1.1 Sep 22, 2026 Android 6 16.9 MB

How to install an older version of an Android app · How to install an APK file on Android

From the developer (GitHub)

APK files published by the developer on GitHub. They are signed by the developer and may not install over the other builds on this page (different signature). Links open github.com.

release/1.2.0 · Oct 1, 2026
ChronoRover_android-arm64_1.2.0.apk 16.9 MB ChronoRover_android-arm_1.2.0.apk 16 MB
release/1.1.1 · Sep 22, 2026
ChronoRover_android-arm64_1.1.1.apk 16.9 MB ChronoRover_android-arm_1.1.1.apk 16 MB
release/1.1.0 · Aug 11, 2026
ChronoRover_android-arm64_1.1.0.apk 16.8 MB ChronoRover_android-arm_1.1.0.apk 16 MB

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