COOL

Your books deserve more than a shelf. COOL helps you turn your personal library into a clean, searchable catalog that stays on your phone.
COOL is a one-time purchase: no ads, no in-app purchases and no subscriptions.
You can add a book by scanning its ISBN barcode, searching by ISBN or title, or entering the data manually. When available, COOL retrieves bibliographic information from Google Books, including title, authors, publisher, year, language, description and cover image.
Each phone keeps its own local SQLite database. No account, backend, cloud sync or remote database is required. Data stays on the device unless you choose to export or share it.
Main features:
- Local book catalog
- ISBN barcode scanning with the camera
- Manual search by ISBN or title
- Book data editing
- Optional cover photo
- Shelf/room cataloging positions
- Filters by title, author, category, language, location and year
- Export to CSV, Excel and Word
- Device column in exports, useful when merging files produced by different phones
COOL is designed for readers, collectors and home libraries that want a simple, private and independent way to keep books organized.