What business card reader app can I use?

[AC Question]

Hi everyone, Need your advise.I work for a small enterprise and always have a problem with bunch of business cards.Sometimes I loose them,sometimes I don't use them,but I heard business card readers can help. Which one do you use? What can you advise? I found some here - https://play.google.com/store/apps/dev?id=5281746353975253291&hl=en , but I don't know which to choose. Someone please help me.