Retty is a Japanese restaurant-discovery service built around user reviews and recommendations. Visitors can search by area, cuisine, or dining occasion, read recent reviews, and explore places recommended by designated TOP USER contributors. The site also features seasonal and occasion-based collections, restaurant reservation information, and gourmet news. Its official app offers nearby restaurant discovery, map-based browsing, and a saved list of places to visit; the homepage links to free downloads. Public restaurant information can be viewed without signing in, while membership supports participation.