What's the best iOS app for tracking books I've read and finding new ones?

Goodreads is an iOS app that serves as a digital hub for book enthusiasts to manage their reading journeys and explore literary options. Its core functionality allows users to create virtual shelves, log books as read, currently reading, or to-read, and set annual reading goals through challenges that gamify the experience. For instance, a user aiming to read 50 books a year can track progress in real-time, which reviews indicate helps maintain motivation. The app integrates a social community where members can share reviews, see what friends are reading, and participate in discussions, making it useful for book clubs or casual readers seeking trusted opinions. Beyond logging, Goodreads employs user data to generate personalized recommendations, suggesting new titles based on past ratings and shelves. This feature addresses the common dilemma of choosing what to read next. However, some limitations exist. Users report occasional desires for more granular tracking, such as noting who recommended a book, and a few express privacy concerns about data usage. The interface, while functional, can feel cluttered to new users, but regular updates have improved navigation. Overall, Goodreads balances comprehensive tracking with discovery tools, supported by a large database and active community.