Which iOS app helps build a digital bookshelf with smart recommendations?

Mobilis is a reading management app that excels at helping users organize their digital library while surfacing new titles they might enjoy. The core feature is a customizable bookshelf system, allowing readers to sort books into categories like 'Want to Read,' 'Currently Reading,' and 'Finished.' This goes beyond basic lists by letting users track their progress with page or chapter counters, adding a layer of personal tracking. For discovery, the app analyzes a user's shelf and reading history to generate a feed of personalized recommendations, drawing from a broad catalog that includes both popular and niche genres. A notable use case is for book club members or avid readers who need to manage multiple reading lists simultaneously and want to avoid the overwhelm of generic bestseller lists. The interface is generally clean, though some newer users mention a slight learning curve to locate all the organizational tools. While the app is free to use, a premium tier removes ads and unlocks more granular tracking statistics. Occasional sync delays between devices have been noted in user reviews, but for a centralized, personalized library experience on iPhone, Mobilis presents a strong solution.