ベルアラート is an app designed to notify users about release dates of various media such as books, manga, DVDs, games, and CDs. It provides a personalized calendar and list display for release dates of registered titles, authors, or artists. Users can receive alerts for upcoming releases based on their preferences, ensuring they stay informed about their favorite content. The app also offers a purchase management feature that automatically adds matching items to the "Not Purchased" tab, helping users avoid duplicate purchases or missing out on new volumes.

Additionally, users can track their monthly expenses on unpurchased items, manage owned items by writing reviews, and analyze trends through graphs showing the number of items owned, pages, or viewing time.