Pingterval! is a free Chrome extension developed by Mythical 5th. It falls under the category of Browsers and is specifically classified as an Add-ons & Tools subcategory.

The main purpose of Pingterval! is to track time by sending a ping every hour. Users have the flexibility to choose the exact minute for the ping, set the volume, and even mute it when silence is desired.

It is important to note that Pingterval! utilizes the browser's Alarms subsystem, which ensures efficient resource usage. However, there may be slight delays in the pings, especially after the computer wakes from sleep mode. Due to this reason, it is not recommended for use in critical infrastructure management, such as nuclear weapons facilities.

For those seeking a gentle notification of time passing while focusing on tasks, Pingterval! can be an ideal solution.