Checker Plus for Gmail is an extension for Google Chrome and Firefox that adds notifications, reminders, and other helpful features to your Gmail inbox. With Checker Plus, you can easily manage your emails, view attachments, and get notified of new emails without having to open the Gmail website. Checker Plus for Gmail also adds useful features such as the ability to snooze emails, archive emails with a single click, and quickly search your emails. Plus, the app is completely free and available for both Android and iOS devices.
Discontinued The program is no longer updated. The latest version, 5.74, released in November 2013, can still be downloaded from the official website.