Hello Sir,
I have read your requirement and I would like to go further on this.
Let me introduce myself, I am Angel (skype: proejct4angel) working as freelancer on Android and iOS with team of 7 persons. You can see some of my previous work in my portfolio.
Sir, I understand your requirement point and I can provide you perfect solution in your budget. As we can scan the barcode and search similar result and we need to integrate google analytics, where you can see all search by users. Sir, I would like to request you to lets have some words via chat before you choose any freelancer for this task.
Looking forward from you.
Regards,
Angel.