WatchCheck 2.4.1

WatchCheck is an Android app designed in Material Design that allows users to easily measure the precision of mechanical watches.

One standout feature of WatchCheck is its use of precise time sources such as NTP (Network Time Protocol) and GPS as reference times, rather than relying on the potentially less accurate internal clock of your mobile device. This ensures greater accuracy in your measurements, especially when using GPS in situations where there is no available data network, such as when traveling abroad.

Regarding concerns about providing your "precise location," it is only necessary for retrieving accurate reference time via GPS in the absence of network access.