GAlarm is a free Chrome add-on developed by namutaka. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. The main purpose of GAlarm is to notify users of their Garoon events.

To get started with GAlarm, simply install the app and open the options screen. From there, you can set the URL of the Garoon instance you are using. Once set up, GAlarm will notify you of your Garoon events on the day they occur.

GAlarm has undergone several updates throughout its development. In version 1.5, the notification feature was changed to Web Notification. Additionally, a persistent notification mode was added for users who prefer more frequent reminders. Another mode was introduced in which event pages can be displayed as pop-ups.

In version 1.4, the method of retrieving event information was changed to use the soap API of Garoon 4.0.2.

GAlarm has also received updates in the past to address minor bugs and improve overall performance.

Overall, GAlarm is a useful Chrome add-on for Garoon users who want to receive timely event notifications.