Kobo Books & Audiobooks by Rakuten Kobo Inc. serves as a digital reading and listening platform, positioning itself as a competitor to established services like Amazon Kindle and Apple Books. The app provides access to a vast catalog of e-books and audiobooks, enabling purchases, borrows from libraries, and personal uploads. Its market presence is notable for supporting open EPUB formats, which appeals to users seeking flexibility beyond proprietary ecosystems. Core features include a highly customizable e-book reader with adjustable font styles, sizes, margins, and themes like night mode for reduced eye strain. The audiobook player supports variable playback speeds, chapter navigation, and sleep timers, catering to different listening preferences. Library organization tools allow users to sort titles by collections, recent activity, or manually created shelves. Syncing across devices via a Kobo account ensures that reading progress and bookmarks are updated in real-time, though occasional delays have been noted in user reports. Additional functionalities include integrated dictionary lookup, highlighting, and note-taking, which are particularly useful for students or researchers. In real-world usage, the app excels during commutes or travel due to offline access for downloaded content. The interface is generally intuitive, with a clean layout that minimizes clutter, though some users find the store navigation slightly less streamlined compared to competitors. For instance, a reader can start a book on an iPhone during a lunch break and resume on an iPad at home without losing their place. The audiobook experience is smooth, with reliable background playback that works well during workouts or household chores. User feedback, though limited in official reviews, indicates appreciation for the app's lack of DRM restrictions on certain titles and the ability to import personal documents. Common praises highlight the reading customization options and the affordability of Kobo's frequent sales. However, some early adopters mention minor issues like sporadic app crashes after iOS updates or slower load times in the store section compared to more polished rivals. These points are based on general trends observed in similar app ecosystems and community forums. Overall, Kobo Books & Audiobooks presents a solid choice for iOS users invested in a flexible, cross-platform reading environment. Its strengths lie in format compatibility and user-controlled customization, while its limitations include occasional performance hiccups and a slightly smaller exclusive content library than some competitors. For those prioritizing control over their digital library and cost-effective access, the app delivers reliably with room for incremental improvements.