Which Android app should I use for organizing and reading a personal e-book library?

e is an e-book management app that caters to Android users seeking a streamlined way to handle their digital reading materials. It excels in organizing personal libraries by allowing users to import books in formats like EPUB, PDF, and MOBI, which cover most common e-book files. The app provides a clean, intuitive interface where books can be sorted by genre, author, or custom tags, simplifying navigation for avid readers or students with extensive collections. For real-world scenarios, commuters can download titles for offline access during travel, while researchers can use annotation tools to highlight and note key passages, with these markups saved locally for later review. Reviews indicate that users appreciate the customizable reading settings, such as adjustable font sizes and night mode, which enhance comfort during prolonged use. However, feedback points to minor imperfections, including occasional syncing delays between devices and performance hiccups with large PDF files. The free version includes advertisements that some find distracting, and while SoftMax Company releases updates, support response times can vary. Despite these limitations, e's cloud synchronization ensures library backup and access from multiple devices, and its search functionality quickly locates titles or content within books. With a 3.5-star rating, it balances core features with areas for improvement, making it a practical choice for those prioritizing organization and basic reading functionality over integrated bookstore or social features.