In "R checker" you can check sales of Rakuten shops. If you operate multiple shops, you can register and confirm the shop information of each shop.The functions available in the R Checker application are as follows.- Authentication with Touch ID, Face ID- Display sales this month- Display todays sales by product today- Display monthly sales by product this month- Display of sales by product for 7 days- Display of sales by product for 30 days- RMS auto login function- Multiple shop registrationAlso, from the viewpoint of security, the R checker application is a specification that can not be registered with the ID and password with access rights to the order information containing personal information. In addition, since information necessary for acquiring sales data is not retained on the server side, it can be used more safely and securely.From now on, as the name of "R checker", functions that can conveniently access information other than "sales" will be added.