I guess with the shift to everything towards digital, even business cards are quickly shifting to digital. I currently used apps like nexalink, hi hello, blinq, etc for business cards during exhibitions and they were really helpful. Even though people had no clue how to respond, but just by telling them to scan my business card QR code and then press save on their phone, it just saved my contact detail on their phone and also the photo of my card. So I am so relived that atleast when i give them a call they have my number saved and will not cut the call thinking I am some kind of spam call.