Nailbook is a popular nail application with over million downloads. It allows users to easily find nail designs by hashtags, length, color, designs, and scenes. Many manicurists post their designs on the app, providing users with a wide variety of popular nail designs to choose from. Users can also check the current trend by viewing daily, weekly, and monthly rankings of hot nail designs, popular nail artists, and popular nail salons. The app also offers convenient and comfortable nail salon booking, allowing users to search for nail salons in Japan, sort them by popularity or price, and make online reservations. In addition to browsing and booking nail salons, users can also post their own nail pictures on the app. By posting a nail photo, users can advertise their nail arts to other nail-loving users. They can also share their pictures on Facebook or Twitter simultaneously. Registration is easy with SNS accounts, allowing users to log in and use membership functions without any stress. The app is recommended for those who want to find cute nail designs, need a stylish nail design for a special occasion, want to know cool nail designs for Instagram, want to find a nearby nail salon, want to share their beautiful nails, or want to connect with other nail-loving people. Nailbook also offers additional services such as posting information about nails and beauty products on their official website and through social media channels. They have Nail Book Magazines and official accounts on Twitter, Facebook, Instagram, and LINE. Users can contact the app's support team by checking the frequently asked questions section or accessing the latest support information.