Review on Button by Mike Modesto

I liked the mobile app and how it can be used with a QR code. I dislike the fact that the app is free. I think there should be a paid version of the app. I would like to be able to pay for the app and have the benefits of it. I would also like to be able to have more options to customize the app. I have had issues with the app working or not working when scanning a QR code. I would like to be able to scan a QR code and see if the app is working or not. I would like to be able to scan a QR code to see if the store is accepting mobile payments. I would like to have more options for what I can do with the app. I would like to be able to pay for the app. I do not like how it acts when I scan a QR code.