BookNapper vs Document Scanner Pro - OCR Usage & Stats

Singapore National Library Board (NLB) Book Availability Search. Keep a list of books to read by scanning in their ISBN bar code numbers. The app will tell you where each book can be found in the NLB branch library system. Also, when you walk into an NLB branch library, the app will tell you which of the books in your to-read list can be found there, together with their call numbers, so you can quickly locate the book.