ラクコミビューア is an app that allows users to manage and read manga and comics purchased from the e-book store "RakuRaku Comic (formerly Rakuten Manga)". It serves as a bookshelf and viewer for manga and comics.

The app offers a variety of features to enhance the reading experience. Users can read both horizontally and vertically, allowing for seamless page navigation in either direction. Additionally, the app includes a lockable bookshelf feature, where users can store books they don't want displayed on the main bookshelf, providing an extra level of privacy and security.

For users who find it difficult to read comic text in portrait mode, the app offers vertical scrolling in landscape mode, making it easier to read. The app also provides smooth page navigation, allowing users to quickly search for specific scenes or pages with a flick of their finger.

In terms of organization, the app offers customizable bookshelf management. Users can categorize their purchased works into different shelves, such as "Boys' Manga" or "Girls' Manga", to keep their collection organized and easily accessible.

To address the issue of having a large number of purchased works and difficulties in finding specific books, the app includes a sorting feature. Users can sort their works by author name, title, or the order in which they were added to the app.

Overall, ラクコミビューアマンガコミックを管理する本棚ビューア provides manga and comic enthusiasts with a convenient and customizable platform to manage and enjoy their digital collection.