N Yobi Time Counter is a free Chrome add-on developed by Shieru. It falls under the category of Browsers and specifically Add-ons & Tools. This add-on is designed to display the total time of videos on N Yobi School's class page.

With N Yobi Time Counter, users can easily see the total playback time of videos included in the course materials on N Yobi School's class page. This information can be particularly useful for N/S high school students who want to prioritize their time by tackling longer units first or planning their study and report schedules.

In the latest update (v1.2), the add-on now not only shows the total video time but also includes the total time of watched and unwatched videos. Additionally, code refactoring has been performed to improve the add-on's performance.

Please note that this review is based solely on the information provided and does not reflect personal experience or opinions.