Most Downloaded EPUB App in 2026

If you read EPUB books regularly, choosing the ideal reader can significantly improve your reading experience. While the EPUB format has become the industry standard for digital books, not every reading app offers the same level of customization, library organization, annotation tools, or device support. This guide compares the top five EPUB apps available today based on usability, features, supported devices, and the type of reader they're epub reader best suited for. Whether you're reading translated Chinese web novels, historical romance, fantasy, or classic literature, there's an EPUB reader designed to match your needs.