Bubble is a free library management application designed for fans of comics, manga, and graphic novels. It allows users to easily organize, discover, and order albums. However, Bubble does not offer digital comic book, webtoon, or mangatoon reading capabilities. With Bubble, users can list their comics, manga, and graphic novels, view their incomplete series such as Star Wars, Dragon Ball, Largo Winch, Asterix, or Fairy Tail in just one second, receive notifications about upcoming releases, and order them with just two clicks. Bubble also offers 9emeart and ComicsBlog media to keep up with the latest news and discover new favorites.

Bubble's features include quick album addition with multiple additions (by series) and barcode scanning, sharing collections or wish lists with friends and family, receiving personalized release notifications, ordering albums online, reserving albums at local bookstores for in-store pickup, and responsive customer service via chat or email.

Bubble Infinity is an advanced version of Bubble that offers additional features such as advanced management (read/unread, advanced stats) and loan management, without ads. Upon registration, users receive 30 days to test Bubble Infinity, and then they can purchase 3 months, 1 year, or 2 years of Infinity directly within the application (one-time payment without automatic renewal).

Users have left positive reviews of Bubble, calling it a "little wonder," "top and indispensable," and "well-designed and efficient." To contact the Bubble team, users can send an email to contact@bubblebd.com.

Overall, Bubble is a useful tool for comic book, manga, and graphic novel enthusiasts who want to easily manage their collections and stay up-to-date on new releases.