Your library.
Always with you.
A book library app that respects your privacy. Catalogue your collection, track what you've lent out and what you've borrowed, build a wishlist, and find any book in seconds by ISBN scan or title search. Share your library with your household via iCloud. No account required. Free to use, with LeanBooks Plus as an optional upgrade.
Free download · Try unlimited for 30 days
Everything a bookworm needs.
Nothing they don't.
Your Collection, Organised
Scan a barcode or search by title — LeanBooks pulls in the cover, synopsis, author, and publication details from Google Books automatically. Assign shelf locations and browse by author, title, or where the book lives.
Lending, Both Ways
Track books you've lent out and books you've borrowed — with the person's name, due date, and overdue status at a glance. Reminders alert you before loans are due. No more "wasn't it you who had my copy?" moments.
Wishlist for the Next Haul
Spotted a book you want but don't own yet? Add it to your wishlist. Browse it at the bookshop or before your next order. Never forget a title again.
Family Library
Share your entire library with your household via iCloud — no extra account, no third-party service. Everyone sees what's in the collection and who has borrowed what. Included in LeanBooks Plus.
See it in action.
Start free.
Upgrade when you're ready.
Try every feature without a book limit for 30 days. Afterwards, keep using LeanBooks free with up to 20 books or upgrade to LeanBooks Plus.
- First 30 days: unlimited books & shelves
- Afterwards: up to 20 books
- Lending tracker — both directions
- Due dates & loan reminders
- Wishlist
- iCloud sync across your devices
$3.99 for the first year · Aug 1 – Oct 31, 2026
- Unlimited books & shelves
- Family Library — share with your household
- Custom app backgrounds
- Support independent development ♥
$8.99 per year afterwards. Subscribe directly from within the app.