ChronyControl

ChronyControl provides a graphical interface for installing and configuring the chronyd daemon on macOS systems version It bundles a recent version of the chrony NTP client, sets up the service to start at login using macOS’s SMAppService, and writes syslog output to /var/log/chronyd.log. The application includes controls for rotating logs, adjusting advanced settings, and issuing chronyc commands such as reloading sources or waiting for network availability before execution.

The tool is aimed at macOS users who need precise time synchronization, including those who wish to leverage GPS or other high‑accuracy sources. It presents status information and a tracking graph, allowing users to monitor clock drift and synchronization performance without using the command line.

Distinctive aspects include native macOS integration (requiring macOS 11.5 or later), universal binary builds, and the use of modern libraries such as gnutls and Sparkle for secure updates. The UI adapts to recent macOS versions, and the package is maintained as a stable release.