How great it would be if you can find a copy of a book from your favourite genre online for free. No we are not joking, It’s possible with Barterli app. A startup in Singapore has created an app to exchange , sell/buy books online for free. This trendy app lets you post your book in app by just scanning barcode behind the book and shows you thousands of books from myriad of genre which you like. Cool, isnt it ?