The Rakuten App Promotion Alert is a Chrome add-on developed by benisyougaten. It is a free tool that aims to encourage users to make purchases on the Rakuten marketplace through their smartphone app.

When using Google Chrome to browse the Rakuten marketplace and navigate to the cart page, this add-on displays an alert that prompts users to make their purchase through the Rakuten app. By doing so, users can earn an additional 0.5% points in the Rakuten Super Points (SPU) loyalty program.

The add-on is designed to inform users that shopping on the Rakuten app is more advantageous than using the browser version, as it provides an extra 0.5% points in the SPU program. With the Rakuten App Promotion Alert installed, Google Chrome users are encouraged to take advantage of this offer and make their purchases through the app.