Hello There,
I have gone through your requirement for Barcode and QR code scanner app, I have previous work experience with developing a similar app, Let us discuss details over chat, I can develop this app in one day max.
Thanks
Abhishek
Hi, I am a Android developer and I was built some apps. I also work apps QR code, work with api to send data to server and i can help you build app. Please contact with me. Thank you.